Abstract
Background
Cancer survivors experience numerous disease and treatment‐related adverse outcomes and poorer health‐related quality of life (HRQoL). Exercise interventions are hypothesized to alleviate these adverse outcomes. HRQoL and its domains are important measures for cancer survivorship.
Objectives
To evaluate the effectiveness of exercise on overall HRQoL and HRQoL domains among adult post‐treatment cancer survivors.
Search methods
We searched the Cochrane Central Register of Controlled Trials (CENTRAL), PubMed, MEDLINE, EMBASE, CINAHL, PsycINFO, PEDRO, LILACS, SIGLE, SportDiscus, OTSeeker, and Sociological Abstracts from inception to October 2011 with no language or date restrictions. We also searched citations through Web of Science and Scopus, PubMed's related article feature, and several websites. We reviewed reference lists of included trials and other reviews in the field.
Selection criteria
We included all randomized controlled trials (RCTs) and controlled clinical trials (CCTs) comparing exercise interventions with usual care or other nonexercise intervention to assess overall HRQoL or at least one HRQoL domain in adults. Included trials tested exercise interventions that were initiated after completion of active cancer treatment. We excluded trials including people who were terminally ill, or receiving hospice care, or both, and where the majority of trial participants were undergoing active treatment for either the primary or recurrent cancer.
Data collection and analysis
Five paired review authors independently extracted information on characteristics of included trials, data on effects of the intervention, and assessed risk of bias based on predefined criteria. Where possible, meta‐analyses results were performed for HRQoL and HRQoL domains for the reported difference between baseline values and follow‐up values using standardized mean differences (SMD) and a random‐effects model by length of follow‐up. We also reported the SMDs between mean follow‐up values of exercise and control group. Because investigators used many different HRQoL and HRQoL domain instruments and often more than one for the same domain, we selected the more commonly used instrument to include in the SMD meta‐analyses. We also report the mean difference for each type of instrument separately.
Main results
We included 40 trials with 3694 participants randomized to an exercise (n = 1927) or comparison (n = 1764) group. Cancer diagnoses in study participants included breast, colorectal, head and neck, lymphoma, and other. Thirty trials were conducted among participants who had completed active treatment for their primary or recurrent cancer and 10 trials included participants both during and post cancer treatment. Mode of the exercise intervention included strength training, resistance training, walking, cycling, yoga, Qigong, or Tai Chi. HRQoL and its domains were measured using a wide range of measures.
The results suggested that exercise compared with control has a positive impact on HRQoL and certain HRQoL domains. Exercise resulted in improvement in: global HRQoL at 12 weeks' (SMD 0.48; 95% confidence interval (CI) 0.16 to 0.81) and 6 months' (0.46; 95% CI 0.09 to 0.84) follow‐up, breast cancer concerns between 12 weeks' and 6 months' follow‐up (SMD 0.99; 95% CI 0.41 to 1.57), body image/self‐esteem when assessed using the Rosenberg Self‐Esteem scale at 12 weeks (MD 4.50; 95% CI 3.40 to 5.60) and between 12 weeks' and 6 months' (mean difference (MD) 2.70; 95% CI 0.73 to 4.67) follow‐up, emotional well‐being at 12 weeks' follow‐up (SMD 0.33; 95% CI 0.05 to 0.61), sexuality at 6 months' follow‐up (SMD 0.40; 95% CI 0.11 to 0.68), sleep disturbance when comparing follow‐up values by comparison group at 12 weeks' follow‐up (SMD ‐0.46; 95% CI ‐0.72 to ‐0.20), and social functioning at 12 weeks' (SMD 0.45; 95% CI 0.02 to 0.87) and 6 months' (SMD 0.49; 95% CI 0.11 to 0.87) follow‐up.
Further, exercise interventions resulted in decreased anxiety at 12 weeks' follow‐up (SMD ‐0.26; 95% CI ‐0.07 to ‐0.44), fatigue at 12 weeks' (SMD ‐0.82; 95% CI ‐1.50 to ‐0.14) and between 12 weeks' and 6 months' (SMD ‐0.42; 95% CI ‐0.02 to ‐0.83) follow‐up, and pain at 12 weeks' follow‐up (SMD ‐0.29; 95% CI ‐0.55 to ‐0.04) when comparing follow‐up values by comparison group.
Positive trends and impact of exercise intervention existed for depression and body image (when analyzing combined instruments); however, because few studies measured these outcomes the robustness of findings is uncertain.
No conclusions can be drawn regarding the effects of exercise interventions on HRQoL domains of cognitive function, physical functioning, general health perspective, role function, and spirituality.
Results of the review need to be interpreted cautiously owing to the risk of bias. All the trials reviewed were at high risk for performance bias. In addition, the majority of trials were at high risk for detection, attrition, and selection bias.
Authors' conclusions
This systematic review indicates that exercise may have beneficial effects on HRQoL and certain HRQoL domains including cancer‐specific concerns (e.g. breast cancer), body image/self‐esteem, emotional well‐being, sexuality, sleep disturbance, social functioning, anxiety, fatigue, and pain at varying follow‐up periods. The positive results must be interpreted cautiously due to the heterogeneity of exercise programs tested and measures used to assess HRQoL and HRQoL domains, and the risk of bias in many trials. Further research is required to investigate how to sustain positive effects of exercise over time and to determine essential attributes of exercise (mode, intensity, frequency, duration, timing) by cancer type and cancer treatment for optimal effects on HRQoL and its domains.
Plain language summary
Can exercise interventions enhance health‐related quality of life among cancer survivors?
Cancer survivors often have many psychological and physical adverse events as a result of the cancer and treatment for it. They also suffer from poorer quality of life (QoL) than people without cancer. Some studies have suggested that exercise may be helpful in reducing negative outcomes and improving the QoL of people who have finished cancer treatment. Also, a better QoL may predict longer life. This review looked at the effect of exercise on QoL and areas of life that make up QoL (e.g. tiredness, anxiety, emotional health) among people who had finished all cancer treatment.
The review included 40 trials with a total of 3694 people. The results suggest that exercise may improve overall QoL right after the exercise program is completed. Exercise may also reduce the person's worry about his or her cancer, and affect the way the person views his or her body. Exercise may also help the way the person deals with emotions, sexuality, sleep problems, or functions in society. Exercise also reduced anxiety, tiredness, and pain at different times during and after the exercise program. No effect of exercise was found on the person’s ability to think clearly or his or her role function in society. Also, no effect of exercise was found on the way the person views his or her spiritual or physical health, or physical ability.
However, these findings need to be viewed with caution because this review looked at many different kinds of exercise programs, which varied by type of exercise, length of the program, and how hard the trial participants had to exercise. Also, the investigators used a number of different ways to measure QoL.
More research is needed to see how to maintain the effects of exercise over a longer period of time after the exercise program is completed, and to determine which parts of the exercise program are necessary (i.e. when to start the program, type of exercise, length of program or exercise session, how hard to exercise). It is also important to find out if one type of exercise is better for a specific cancer type than another for the maximum effect on QoL.
Summary of findings
Summary of findings 1. Summary of findings.
Exercise intervention compared with usual care on HRQoL and HRQoL domains for cancer survivors | ||||||
Patient or population: Cancer survivors who have completed active cancer treatment Settings: Varied Intervention: Exercise interventions (varied) Comparison: Usual care | ||||||
Outcomes | Illustrative comparative risks* (95% CI) | Relative effect (95% CI) | No of participants (studies) | Quality of the evidence (GRADE) | Comments | |
Assumed risk | Corresponding risk | |||||
Comparison group | Exercise intervention group | |||||
Overall quality of life change score ‐ up to 12 weeks' follow‐up | The standardized mean change from baseline to up to 12 weeks' follow‐up in overall quality of life ranged across control groups from ‐0.59 to 0.56 standard deviation units | The standardized mean change from baseline to up to 12 weeks' follow‐up in overall quality of life in the exercise groups was 0.48 standard deviation units higher (0.16 to 0.81 standard deviation units higher) | 826 (11 studies) | ⊕⊕⊝⊝ low1,2 | (SMD 0.48; 95% CI 0.16 to 0.81) A standard deviation units is equivalent to about a 14.5‐point change using the FACT‐G HRQoL form or a 18.5‐point change using the QLQ‐C30 HRQoL form |
|
Overall quality of life change score ‐ 6 months' follow‐up | The standardized mean change from baseline to 6 months' follow‐up in overall quality of life ranged across control groups from ‐0.32 to 0.15 standard deviation units | The standardized mean change from baseline to 6 months' follow‐up in overall quality of life in the exercise groups was 0.46 standard deviation units higher (0.09 to 0.84 standard deviation units higher) | 115 (2 studies) | ⊕⊕⊕⊝ moderate1,3 | (SMD 0.46; 95% CI 0.09 to 0.84) | |
Overall anxiety change ‐ Up to 12 weeks' follow‐up | The standardized mean change from baseline to up to 12 weeks' follow‐up in overall anxiety ranged across control groups from ‐0.25 to 0.04 standard deviation units | The standardized mean change from baseline to up to 12 weeks' follow‐up in overall anxiety in the exercise groups was ‐0.26 standard deviation units lower (‐0.44 to ‐0.07 standard deviation units lower) | 455 (4 studies) | ⊕⊕⊝⊝ low1,4,5 | (SMD ‐0.26; 95% CI ‐0.44 to ‐0.07) A standard deviation unit is equivalent to about a 3.4‐point change using the HADS scale or about a 11.5‐point change using the STAI scale |
|
Overall emotional well‐being/mental health change ‐ up to 12 weeks' follow‐up | The standardized mean change from baseline to up to 12 weeks' follow‐up in overall emotional well‐being/mental health ranged across control groups from ‐0.48 to 0.46 standard deviation units | The standardized mean change from baseline to up to 12 weeks' follow‐up in overall emotional well‐being/mental health in the exercise groups was 0.33 standard deviation units higher (0.05 to 0.61 standard deviation units higher) | 632 (8 studies) | ⊕⊕⊝⊝ low1,2,4,5 | (SMD 0.33; 95% CI 0.05 to 0.61) A standard deviation unit is equivalent to about a 24‐point change on the QLQ‐C30 emotional function sub‐scale or about a 5‐point change on the FACT‐emotion sub‐scale |
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Overall fatigue change ‐ Up to 12 weeks' follow‐up | The standardized mean change from baseline to up to 12 weeks' follow‐up in overall fatigue ranged across control groups from ‐0.29 to 0.44 standard deviation units | The standardized mean change from baseline to up to 12 weeks' follow‐up in overall fatigue in the exercise groups was ‐0.82 standard deviation units lower (‐1.50 to ‐0.14 standard deviation units lower) | 745 (10 studies) | ⊕⊕⊕⊝ moderate1 | (SMD ‐0.82; 95% CI ‐1.50 to ‐0.14) A standard deviation unit is equivalent to about a 21‐point change on the QLQ‐C30 fatigue subscale or about a 11‐point change on the FACT‐F sub‐scale |
|
Overall fatigue change ‐ More than 12 weeks less than 6 months' follow‐up | The standardized mean change from baseline to between 12 weeks and 6 month follow‐up in overall fatigue ranged across control groups from ‐0.27 to 0.74 standard deviation units | The standardized mean change from baseline to between 12 weeks and 6 month follow‐up in overall fatigue in the exercise groups was ‐0.42 standard deviation units lower (‐0.83 to ‐0.02 standard deviation units lower) | 246 (3 studies) | ⊕⊕⊝⊝ low1,2,3 | (SMD ‐0.42; 95% CI ‐0.83 to ‐0.02) | |
Overall pain follow‐up values ‐ up to 12 weeks' follow‐up | The standardized mean follow‐up values in overall pain for up to 12 weeks' follow‐up ranged across control groups from 0.94 to 9.67 standard deviation units | The standardized mean follow‐up values in overall pain for up to 12 weeks' follow‐up in the exercise groups was ‐0.29 standard deviation units lower (‐0.55 to ‐0.04 standard deviation units lower) | 289 (4 studies) | ⊕⊕⊕⊝ moderate1,3 | (SMD ‐0.29; 95% CI ‐0.55 to ‐0.04) A standard deviation unit is equivalent to about a 28‐point change on the QLQ‐C30 pain sub‐scale |
|
Overall sexuality change ‐ 6 months' follow‐up | The standardized mean change from baseline to 6 months' follow‐up in overall sexuality change ranged across control groups from ‐0.01 to 0.04 standard deviation units | The standardized mean change from baseline to 6 months' follow‐up in overall sexuality change in the exercise groups was 0.40 standard deviation units higher (0.11 to 0.68 standard deviation units higher) | 193 (2 studies) | ⊕⊕⊕⊝ moderate1,3 | (SMD 0.40; 95% CI 0.11 to 0.68) | |
Overall sleep disturbance follow‐up values ‐ up to 12 weeks' follow‐up | The standardized mean change from baseline to up to 12 weeks' follow‐up in overall sleep disturbance ranged across control groups from 1.02 to 9.71 standard deviation units | The standardized mean change from baseline to up to 12 weeks' follow‐up in overall sleep disturbance in the exercise groups was ‐0.46 standard deviation units lower (‐0.72 to ‐0.20 standard deviation units lower) | 438 (8 studies) | ⊕⊕⊕⊝ moderate1 | (SMD ‐0.46; 95% CI ‐0.72 to ‐0.20) A standard deviation unit is equivalent to about a 6‐point change on the PSQI |
|
Overall social functioning change ‐ up to 12 weeks' follow‐up | The standardized mean change from baseline to up to 12 weeks' follow‐up in overall social functioning ranged across control groups from ‐0.44 to 0.11 standard deviation units | The standardized mean change from baseline to up to 12 weeks' follow‐up in overall social functioning in the exercise groups was 0.45 standard deviation units higher (0.02 to 0.87 standard deviation units higher) | 386 (5 studies) | ⊕⊝⊝⊝ very low1,2,3,4,5 | (SMD 0.45; 95% CI 0.02 to 0.87) A standard deviation unit is equivalent to about a 25‐point change on the QLQ‐C30 social functioning subscale or about a 6‐point change on the FACT‐Social subscale |
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Overall social functioning change ‐ 6 months' follow‐up | The standardized mean change from baseline to 6 month follow‐up in overall social functioning ranged across control groups from ‐0.59 to ‐0.31 standard deviation units | The standardized mean change from baseline to 6 month follow‐up in overall social functioning in the exercise groups was 0.49 standard deviation units higher (0.11 to 0.87 standard deviation units higher) | 110 (2 studies) | ⊕⊕⊕⊝ moderate1,3 | (SMD 0.49; 95% CI 0.11 to 0.87) | |
*The basis for the assumed risk (e.g. the median control group risk across studies) is provided in footnotes. The corresponding risk (and its 95% confidence interval) is based on the assumed risk in the comparison group and the relative effect of the intervention (and its 95% CI). CI: confidence interval; EORTC QLQ‐C30: European Organization for Research and Treatment of Cancer Quality of Life Questionnaire Core Module; FACT‐emotion: Functional Assessment of Cancer Therapy ‐ emotion; FACT‐F: Functional Assessment of Cancer Therapy ‐ Fatigue; FACT‐G: Functional Assessment of Cancer Therapy ‐ General; FACT‐Social: Functional Assessment of Cancer Therapy ‐ Social; HADS: Hospital Anxiety and Depression Scale; HRQoL: health‐related quality of life; PSQI: Pittsburgh Sleep Quality Index; SMD: standardized mean difference; STAI: State‐Trait Anxiety Index. | ||||||
GRADE Working Group grades of evidence High quality: Further research is very unlikely to change our confidence in the estimate of effect. Moderate quality: Further research is likely to have an important impact on our confidence in the estimate of effect and may change the estimate. Low quality: Further research is very likely to have an important impact on our confidence in the estimate of effect and is likely to change the estimate. Very low quality: We are very uncertain about the estimate. |
1 It was not possible to blind study participants or people administering treatment.
2 Statistical heterogeneity was moderate to high.
3 The small total population sample size represents a small effect.
4 Random sequence generation was unclear in half or more of the trials.
5 Allocation concealment was unclear in half or more the trials.
Background
There is a steady increase in the number of cancer survivors, that is people diagnosed with cancer (Aziz 2003), worldwide. This is due, in a large part, to the dramatic advances in cancer treatment and management (Aziz 2002; Aziz 2003), growing attention to multidisciplinary post‐treatment care (Demark‐Wahnefried 2000; Stull 2007), and healthier lifestyles (Demark‐Wahnefried 2005; Stull 2007). These factors and trends, especially when considered in light of an aging population (Aziz 2008; Stewart 2003), suggest that we can continue to expect increasing numbers of cancer survivors with greater expected length of survival. Ensuring the quality of that survival thus becomes a key priority.
There are approximately 22 million cancer survivors worldwide (Stewart 2003), 11.7 million (in 2007) of whom are estimated to be present in the US alone (Rowland 2011). Cancer survivors represent 3% to 4% of the US population and the mean age at diagnosis is about 68 years for men and 64 years for women (National Cancer Institute 2008). The relative five‐year survival rates (all cancers combined) increased steadily between 1960 and 2003. Among cancer survivors, as of January 2007, an estimated 64.8% had lived with a diagnosis of cancer for years or more and nearly 10% had lived with a cancer diagnosis for 25 years or longer (Rowland 2011). The majority (60%) of cancer survivors are ages 65 years or older (Rowland 2011) and five‐year survival rates show a decrease with increasing age‐at‐diagnosis (Ries 2007). These findings lend support to the need for pre‐emptive management strategies targeting this age group. Mortality rates (all cancers combined) appear to show stabilization at this point and even a decline for some sites (Jemal 2004; Jemal 2006), supporting estimated trends of growing numbers of cancer survivors in the future.
Description of the condition
Cancer survivors experience numerous disease‐ or treatment‐related adverse outcomes (physiologic or psychosocial, or both) (Aziz 2002; Aziz 2003; Aziz 2007; Aziz 2008; Gotay 1998; Rao 2006) and poorer health‐related quality of life (HRQoL) (Ahn 2007; Ganz 1998; Ganz 2002; Ganz 2004; Gotay 1998; Hammerlid 2001). Some of the adverse outcomes include cardiotoxicity, neurotoxicity, lymphedema, premature menopause, sexual dysfunction, infertility, and fatigue (Aziz 2002; Aziz 2003; Aziz 2007; Rao 2006), all with a negative impact on HRQoL long after the completion of active treatment. Many of the adverse outcomes carry the potential to decrease the length and quality of survival and need to be prevented or managed. Intervention strategies capable of mitigating or preventing these adverse outcomes, especially those based on exercise, energy balance, or lifestyle factors, are of great interest as these are modifiable factors. Exercise interventions are particularly relevant because they influence both the physiologic and psychosocial adverse outcomes, including HRQoL (Courneya 2007; Ingram 2007; Schmitz 2005; Warburton 2006). Further, HRQoL and its domains are important measures for cancer survivorship as they provide prognostic (Gotay 2008) and predictive (Efficace 2006; Osoba 1999; Osoba 2007) information and the survivors' subjective experiences (Bottomley 2002) to therapeutic and lifestyle interventions.
Although HRQoL has no commonly accepted definition, there is broad consensus that it is a patient‐reported, multidimensional construct. Ferrans provided a comprehensive review of definitions of HRQoL and concluded that, "the literature contains a bewildering array of characterizations" (Ferrans 2005). Nonetheless, the review indicated that there is broad consensus among experts (Bottomley 2002; Gotay 1992; Lipscomb 2007; Osoba 1994) regarding the major domains of HRQoL. These domains comprise subjective assessments of physical, psychological, economic, social, and spiritual well‐being. Physical function includes performance of self‐care activities, mobility, and physical activities. Psychological functions include emotional well‐being, anxiety, body image, and depression. Social and economic functions include work or household responsibilities and social interactions. Spiritual well‐being includes perspectives on one's life as a whole. HRQoL also encompasses the negative aspects of the disease or treatment, or both, such as sexual functioning, neuropathy or cognitive changes, and chronic fatigue. Lastly, it is also important to assess positive aspects of HRQoL (Diener 2000). Our selection of the primary outcomes for this review reflects these theoretical perspectives, in that we included both all the well‐agreed upon domains of HRQoL and positive aspects of well‐being.
Description of the intervention
The benefits of exercise on health status, length of survival, promotion of HRQoL, and mitigating premature death are gaining wide attention (Warburton 2006). Evidence indicates exercise increases physical functioning among cancer survivors (Ingram 2007; Stevinson 2004), and facilitates positive physiologic and psychological benefits in cancer survivors during and after treatment (Galvao 2005; Ingram 2007; Knols 2005; Schmitz 2005). In addition, evidence suggests exercise enhances HRQoL in breast (McNeely 2006; Milne 2008a; Valenti 2008), ovarian (Stevinson 2007), prostate (Thorsen 2008), head and neck (Rogers 2006), bladder (Karvinen 2007), endometrial (Courneya 2005a), multiple myeloma (Jones 2004), and colorectal (Courneya 2003b) cancer survivors. Further, exercise leads to improvements in physical functioning and a reduction in fatigue symptoms in breast (McNeely 2006) and prostate (Thorsen 2008) cancer survivors. The participation in exercise programs by cancer survivors varies by factors such as age (Courneya 2007a); cancer type and stage at diagnosis (Knols 2005); site of cancer diagnosis (Knols 2005), especially for multiple myeloma (Jones 2004) and cancers of the head and neck (Rogers 2006), bladder (Karvinen 2007), and ovary (Stevinson 2007); type of medical treatment received (Knols 2005); and, the survivors' current lifestyle (Knols 2005). However, despite the growing body of literature documenting the beneficial effects of exercise in cancer survivors (Courneya 2007), several studies documented lower levels of exercise behavior among people diagnosed with cancer (Blanchard 2003; Valenti 2008; Vallance 2005).
How the intervention might work
There is tremendous interest in the association between exercise and physiologic and psychological well‐being in general and HRQoL in particular. Systematic reviews on the effects of exercise interventions on cancer survivors documented improvements, during and after treatment, in cardiorespiratory fitness (McNeely 2006; Schmitz 2005), physical function (McNeely 2006; Stevinson 2004; Thorsen 2008), psychological well‐being (Galvao 2005; Knols 2005), overall HRQoL (Knols 2005), and fatigue (Cramp 2008; McNeely 2006; Mustian 2007). In addition, exercise‐related improvements are documented for physiologic outcomes among cancer survivors undergoing treatment (Galvao 2005; Knols 2005; Schmitz 2005) and vigor and vitality among cancer survivors in the post treatment period (Schmitz 2005).
Why it is important to do this review
There is no systematic review examining the effect of exercise on: (a) overall HRQoL and HRQoL domains (e.g. physical, psychological, economic, social, and spiritual well‐being); and, (b) disease‐ or treatment‐related symptoms, or both (e.g. sexual functioning, neuropathy or cognitive changes, and chronic fatigue) among adult post‐treatment cancer survivors. Moreover, there is little evidence on the long‐term benefits of exercise on survival (Warburton 2006) or HRQoL (Knols 2005; McNeely 2006; Schmitz 2005; Stevinson 2004 ) and the benefits of exercise among older cancer survivors (Courneya 2004). This review is different from previous systematic reviews in the number of databases searched (Galvao 2005; Schmitz 2005) and on the inclusion criteria for the trials. Several of the previous reviews included trials with non‐randomized controlled trial (non‐RCT) designs (Galvao 2005; Schmitz 2005; Stevinson 2004; Thorsen 2008), cancer survivors during active treatment and in the immediate post‐treatment phase (Cramp 2008; Galvao 2005; Knols 2005; McNeely 2006; Schmitz 2005; Stevinson 2004), and site‐specific cancers (McNeely 2006; Thorsen 2008). This lack of documentation and evidence coupled with limitations of the previous reviews necessitated a systematic review to determine the effectiveness of exercise on HRQoL among adult cancer survivors who are beyond the active treatment period. This review complements a previously published protocol that described a systematic review determining the effectiveness of exercise interventions on HRQoL among adult cancer survivors under active treatment (Mishra 2010).
Objectives
To evaluate the effectiveness of exercise on overall HRQoL outcomes and specific HRQoL domains (e.g. physical, psychological, economic, social, and spiritual well‐being, and key disease and treatment (or both) symptoms such as sexual functioning, neuropathy or cognitive changes, and chronic fatigue) among adult post‐treatment cancer survivors (i.e. people with a history of cancer who are beyond active treatment, excluding those who are terminally ill and receiving hospice). We focused on post‐treatment cancer survivors so that we could evaluate the effectiveness of exercise on HRQoL without adjusting for the adverse effects of cancer and/or its treatment on HRQoL.
A secondary objective, where data were available, examined the effectiveness of exercise on HRQoL outcomes among adult post‐treatment cancer survivors stratified by the following:
age at diagnosis (i.e. less than 65 years or greater than or equal to 65 years);
age at trial enrolment (i.e. less than 65 years or greater than or equal to 65 years);
sex;
type of prescribed exercise (i.e. aerobic, anaerobic, combination);
physical condition prior to cancer treatment (i.e. obesity, heart disease, smoking status, asthma);
intensity of exercise (i.e. mild, moderate, vigorous); and
format of exercise (i.e. individual or group, professionally led or not, home or group facility).
Methods
Criteria for considering studies for this review
Types of studies
We included only RCTs and controlled clinical trials (CCTs). The included trials assessed exercise interventions initiated after completion of active cancer treatment (i.e. surgery, chemotherapy, radiation therapy, or hormone therapy).
Types of participants
This review included cancer survivors diagnosed as adults (18 years and over) regardless of age, sex, tumor site, tumor type, tumor stage, and type of anticancer treatment received. We only included cancer survivors diagnosed with cancer as adults (18 years and over). We excluded trials including people who were terminally ill or receiving hospice care, or both, and where the majority of trial participants were undergoing active cancer treatment for either the primary or a recurrent cancer.
Types of interventions
We included trials evaluating and reporting the effects of exercise (excluding dance). We excluded trials only evaluating dance as an intervention because there is a Cochrane review on dance movement therapy for improving psychological and physical outcomes in patients with cancer (Bradt 2011). Included trials compared exercise with no exercise, another intervention, or usual care (e.g. with no specific exercise program prescribed).
We defined exercise as any physical activity causing an increase in energy expenditure, and involving a planned or structured movement of the body performed in a systematic manner in terms of frequency, intensity, and duration and is designed to maintain or enhance health‐related outcomes (American College of Sports Medicine 1998; American College of Sports Medicine 2005). The primary exercise intervention included prescribed, active exercise formats of aerobic, anaerobic, or aerobic/anaerobic combinations focused upon cardiopulmonary, musculoskeletal, neuromuscular, or a combination conditioning: active or active‐assisted range of motion, stretching exercises, and strengthening or resistance exercises. The specific prescribed, active exercise included but was not limited to the following methods: walking, aquatic exercise, running, sports, resistance training, yoga, tai chi, and pilates programs. The prescribed, active exercise program was individual or group, professionally led or not, and home or facility based. Exercise intensity was based on the rate of perceived exertion (RPE) or heart rate (HR), or both, with mild exercise defined as RPE of 6 to 11, HR at 30% to 54% of maximum HR, or both; moderate exercise was defined as RPE of 12 to 13, HR at 55% to 70% of maximal HR, or both; and vigorous exercise was defined as RPE of 14 to 20, HR at 71% to 95% of maximal HR, or both (American College of Sports Medicine 1998). We classified the intensity of the exercise based on RPE, HR, or both, or when a quantitative measure of intensity of the exercise intervention was not available, we used the study authors' classification of an intervention as mild, moderate, or vigorous.
Types of outcome measures
The included trials measured self‐reported participant measures of HRQoL as primary or secondary end points.
Primary outcomes
Overall HRQoL, at four follow‐up intervals: up to 12 weeks; more than 12 weeks but less than 6 months, 6 months, and more than 6 months following the exercise intervention.
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HRQoL domains, at the four time intervals described above including, but not limited to:
physical function (e.g. performance of self‐care activities, mobility, physical activities);
psychological function (e.g. emotional well‐being, anxiety, body image, depression, negative affect);
social and economic role function (e.g. performance of work or household responsibilities, social interactions);
spiritual well‐being;
pain;
vitality (e.g. energy and fatigue);
general health perceptions; and
positive attributes (e.g. positive affect, sense of coherence, interpersonal relationships, philosophy of life, spirituality).
Disease‐ or treatment‐related symptoms, or both (e.g. sexual functioning, neuropathy or cognitive changes, chronic fatigue).
The adverse outcomes of interest included:
any harm associated with the exercise intervention;
cancer recurrence or new cancer;
decrease in overall HRQoL or HRQoL domain.
Search methods for identification of studies
Electronic searches
We used, at the minimum, the following databases and searches to obtain relevant studies for this review. We searched all databases from inception to the present. There were no language or date restrictions in the electronic search for trials. We utilized the search strategy for MEDLINE for the review using text and indexing terms in each database, combined with filters for RCT and CCT, and human studies (Glanville 2006). The MEDLINE search strategy was developed for precision and sensitivity and was then appropriately modified for the other databases.
MEDLINE (Appendix 1)
The Cochrane Central Register of Controlled Trials (CENTRAL) (Appendix 2)
EMBASE (Appendix 3)
CINAHL (Appendix 4)
PsycINFO (Appendix 5)
PEDRO (Appendix 6)
LILACS (Appendix 6)
SIGLE (Appendix 6)
SportDiscus (Appendix 6)
OTSeeker (Appendix 6)
Sociological Abstracts (Appendix 6)
We also searched citations of key authors through Web of Science and Scopus, and searched PubMed's related article feature.
Searching other resources
We performed an expanded search in order to identify additional studies for this review, including unpublished trials and references in the "gray literature". This included the following:
review of the reference list of all retrieved articles and other reviews on the topic;
contacting experts in the field of exercise and HRQoL in order to identify unpublished research;
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searching the following websites:
World Health Organization (WHO) International Clinical Trials Registry Platform (www.who.int/ictrp/en)
Current Controlled Trials (www.controlled-trials.com)
CenterWatch (www.centerwatch.com)
CliniclTrials.gov (www.clinicaltrials.gov)
We did not handsearch any journals specifically for this review.
Data collection and analysis
Selection of studies
Assessment of search results
Two review authors (SM, RS), working independently, screened all the titles and abstracts resulting from the searches, and excluded articles that were clearly not relevant. We retrieved full‐text copies of all trials if either author determined a trial possibly or definitely met the inclusion criteria. We translated into English, where possible, all non‐English language articles. Five paired review authors (SM, RS, PG, OT, CG) independently reviewed the retrieved full‐text articles and, using the defined eligibility criteria, determined their eligibility for inclusion. We did not randomly assign articles to review authors neither did we mask trial details such as trial authors, journal of publication, trial location, and institutional affiliations of the trial authors. If a need arose for clarification of any detail of a trial, we contacted the trial authors to obtain such clarification for a complete assessment of the trial's relevance for the review. We resolved by consensus any disagreement between review authors on classification of an article, either between the two review authors or through use of a third review author.
Data extraction and management
Extraction of study characteristics
For each trial, we extracted:
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characteristics of the studies:
the trial sponsors and the authors’ affiliations.
trial methods: study design, method of sequence generation, method of allocation concealment, masking (participant, researcher, outcome), exclusions after randomization, selective outcome reporting, loss to follow‐up, and compliance.
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characteristics of trial population:
country where participants enrolled;
trial inclusion and exclusion criteria;
number randomized in each arm;
type of control group;
demographic characteristics, including age at trial enrolment, sex;
type of cancer, including primary site, stage at diagnosis, and hormone dependency;
age at diagnosis;
physical condition prior to cancer treatment;
time since diagnosis;
time beyond active treatment;
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characteristics of the intervention:
type of exercise intervention in each intervention group: aerobic, anaerobic, combination;
description/details of the exercise intervention: frequency, duration, intensity, total number of exercise sessions, duration of follow‐up, exercise format (i.e. individual or group, professionally led or not, home or facility based);
description/details of control/comparison intervention;
adherence and contamination;
co‐intervention (e.g. medication use);
-
characteristics of the outcomes
self‐reported HRQoL measure or HRQoL domain measures, or both (e.g. physical, psychological, economic, social, and spiritual well‐being, pain, vitality, health perceptions, positive attributes);
disease or treatment symptoms, or both (e.g. sexual functioning, neuropathy or cognitive changes, and chronic fatigue);
length of time between end of intervention and outcome measurement;
adverse outcomes (e.g. exercise associated harm, cancer recurrence, new cancer, noncompliance with exercise program, trial attrition);
economic data on cost and cost‐benefit of the exercise intervention.
Data extraction and entry
Five paired review authors (SM, RS, PG, OT, CG) independently extracted data, using a standardized form, from each article. Disagreements between the review authors on the data abstracted were resolved through consensus or, when necessary, there was a meeting with a third review author not involved in the particular extraction (SM, RS). In addition, we attempted to contact all trial authors (using e‐mail, letter, fax, or combination) to search for additional articles, seek clarity and additional information about trials, confirm data extraction, and obtain missing data using a structured instrument with standardized questions. If the trial authors could not provide the requested information or were unable to comply with the request within two weeks, we proceeded with the review without the information. If available, we extracted similar data for each outcome from each trial included in the review. For the primary and secondary HRQoL outcomes, if more than two time points were reported during a single interval, the one closest to 12 weeks (for the 12 weeks' follow‐up time point), or the longest time interval (for the other follow‐up time points) was selected for analyses. We also collected information on any harm reported in the included trials. We collected data, if reported, on cost and cost‐benefit of the exercise interventions. The unit of analysis was the individual cancer survivor randomized to each arm of the trial. We entered and combined the trial data using Review Manager (RevMan 5.1) (RevMan 2011). One review author (RS) entered the data into RevMan 5.1, and another review author (SM) worked independently to verify the data entry.
Assessment of risk of bias in included studies
We (SM and RS assessed the risk of bias of all the included trials by evaluating the parameters listed on the RevMan 5.1 'Risk of bias' table, including adequate sequence generation, allocation concealment, masking or blinding, methods of addressing incomplete outcome data, selective reporting and other bias, including attrition from and adherence with the exercise intervention. We assessed and graded each trial quality parameter as high risk, low risk, or unclear risk based on recommendations for judging risk of bias provided in Chapter 8 of the Cochrane Handbook for Systematic Reviews of Interventions (Higgins 2011).
Data synthesis
Measurement of intervention intensity
We reported the authors' classification of the intensity of the exercise based on RPE, HR, or both, or on study authors' classification of the exercise intervention's intensity as mild, moderate, or vigorous.
Measurement of intervention effect
Trials reported data on HRQoL, HRQoL domains, or both in different ways or used different instruments to measure the same construct, but all reported continuous (versus dichotomous) outcomes. If necessary, we planned to transform outcome data to achieve consistency of results, but did not need to do so for this review. We combined data using a weighted mean difference (WMD) and a random‐effects model when trials measured HRQoL or HRQoL domains using either the same measurement method or scale to generate continuous data. We used a standardized mean difference (SMD) analysis and random‐effects model to combine data from different instruments measuring the same domain. When there was significant clinical or statistical heterogeneity, we performed subgroup analyses or provided a qualitative analysis rather than a quantitative analysis of HRQoL or HRQoL domains.
Wherever possible, we conducted subgroup analysis of treatment effect based on:
-
grouping of the exercise intervention on:
type (i.e. aerobic, anaerobic, combination);
intensity (i.e. mild, moderate, vigorous); and
format (i.e. individual or group, professionally led or not, home or facility based);
-
grouping of cancer survivors on:
sex;
age at trial enrolment (i.e. less than 65 years or 65 years and over);
age at diagnosis (i.e. less than 65 years or 65 years and over); and
physical condition prior to cancer treatment; and
cancer type.
To investigate publication bias, we prepared funnel plots and visually examined them for signs of asymmetry. We followed the recommendations in Chapter 10 of the Cochrane Handbook for Systematic Reviews of Interventions (Sterne 2011) for any statistical testing for funnel plot asymmetry. If there was statistically significant asymmetry, we considered interpretations other than publication bias.
We combined data from trials in a meta‐analysis when appropriate to pool for a meta‐analysis, that is, those data showing no significant clinical heterogeneity. We evaluated clinical heterogeneity by examining differences in type of cancer, exercise intervention, and overall HRQoL or HRQoL domains among trials. When there was moderate clinical heterogeneity, we conducted prespecified subgroup analyses (i.e. cancer type, intensity of exercise, etc. as mentioned above). We also checked for statistical heterogeneity by visual inspection of forest plots and by using the Chi2 and I2 tests. When there was significant heterogeneity as demonstrated by a statistically significant Chi2 test or I2 above 50%, we investigated sources for heterogeneity and if possible, conducted a quantitative meta‐analysis by subgroups only. We pooled all trials (or all similar trials) for a random‐effects meta‐analysis to determine the pooled intervention effect estimate (odds ratio (OR) and 95% confidence interval (CI)).
We also conducted sensitivity analysis to assess the effects of including studies with a high risk of bias.
Results
Description of studies
Results of the search
See: Characteristics of included studies; Characteristics of excluded studies; Characteristics of ongoing studies
Through a comprehensive literature search, we identified and screened for retrieval 1795 non‐duplicate potentially relevant references. We excluded a total of 1636 references based on the title and abstract and retrieved 159 references for more detailed evaluation. From these, 82 trials were excluded as they did not meet the inclusion criteria and 40 trials were identified as appropriate for inclusion in the current review. In addition, 12 trials (Devonish 2007; Galvao 2009; Hayes 2011; Jones 2010; Jones 2010a; Kampshoff 2010; Persoon 2010; Saxton 2006; Sekse 2011; Spence 2007; Vardy 2010; Walsh 2010) were ongoing and one trial (Utz‐Billing 2010) was awaiting classification and these trials were not included in the analysis presented below but will be considered in future updates of this review. All searches were completed in October 2011. See Figure 1 for a flowchart of the search process based on the PRISMA template (Moher 2009).
Included studies
The final selection based on consensus resulted in 40 trials being included in this review (Bai 2004; Banasik 2011; Berglund 1994; Bourke 2011; Burnham 2002; Cadmus 2009; Cho 2006; Cohen 2004; Courneya 2003a; Courneya 2003b; Courneya 2003c; Courneya 2009; Culos‐Reed 2006; Daley 2007a; Danhauer 2009; Dimeo 2004; Dodd 2010; Donnelly 2011; Fillion 2008; Heim 2007; Herrero 2006; Knols 2011; McNeely 2008a; Mehnert 2011; Milne 2008a; Moadel 2007; Mustian 2004; Oh 2008; Oh 2010; Ohira 2006; Payne 2008; Penttinen 2011; Pinto 2003; Pinto 2005; Rogers 2009; Segar 1998; Speck 2010; Tang 2010; Targ 2002; Thorsen 2005). We also reviewed and included information on trial characteristics and outcome‐related data from an additional 24 publications that were secondary publications to several of the 40 trials. We corresponded with and requested additional data from 11 trial authors (Daley 2007a; Dodd 2010; Heim 2007; Herrero 2006; Mehnert 2011; Oh 2008; Payne 2008; Penttinen 2011; Rogers 2009; Tang 2010; Thorsen 2005), and six of these trials authors were able to provide additional data. We were unable to find the correct corresponding address for one author (Berglund 1994). For trial characteristics and outcomes see the Characteristics of included studies table.
Overall study characteristics
Of the 40 included trials, 38 were RCTs, although three trials used variations of the RCT design in that two used a cross‐over design (Culos‐Reed 2006; Milne 2008a) and one randomized clusters (Courneya 2003a), where clusters were psychotherapy classes. Two trials (Cho 2006; Heim 2007) used a quasi‐randomized design to allocate participants to treatment. All trials, except for four (Burnham 2002; Daley 2007a; Dodd 2010; Segar 1998), randomized eligible participants to either the exercise or comparison arm. The additional study group in these four trials comprised variations in the exercise arm, such as low‐intensity exercise group or moderate‐intensity exercise group (Burnham 2002), exercise‐therapy group or exercise‐placebo group (Daley 2007a), group that began exercise during treatment or group that began exercise after treatment (Dodd 2010), and an exercise group or an exercise and behavioral modification group (Segar 1998). In all, 3694 (range: 18 to 573) participants were randomized to an exercise intervention(s) (n = 1927, range: 9 to 302) or the comparison group (n = 1764, range: 7 to 271). In one trial, the number of participants randomized to the exercise and comparison arms did not add up to the number of participants randomized in the trial (Dimeo 2004). For detailed information on overall study characteristics see Characteristics of included studies table.
Participants
Participants enrolled in the trials had various cancer diagnoses including breast, colorectal, head and neck, and other. Twenty‐two trials investigated participants with breast cancer only (Banasik 2011; Cadmus 2009; Cho 2006; Courneya 2003c; Daley 2007a; Danhauer 2009; Fillion 2008; Heim 2007; Herrero 2006; Mehnert 2011; Milne 2008a; Moadel 2007; Mustian 2004; Ohira 2006; Payne 2008; Penttinen 2011; Pinto 2003; Pinto 2005; Rogers 2009; Segar 1998; Speck 2010; Targ 2002) and an additional 12 trials investigated participants with a range of cancer diagnoses (Berglund 1994; Burnham 2002; Courneya 2003a; Culos‐Reed 2006; Dimeo 2004; Dodd 2010; Donnelly 2011; Knols 2011; Oh 2008; Oh 2010; Tang 2010; Thorsen 2005). Thirty trials were conducted among participants who had completed active treatment for their cancer, and the remaining 10 trials included participants both during and post cancer treatment (Cohen 2004; Courneya 2003a; Courneya 2009; Danhauer 2009; Donnelly 2011; Moadel 2007; Oh 2008; Oh 2010; Tang 2010; Targ 2002). One of these reported data separately on trial participants who completed treatment (Moadel 2007) and we included only these data in this review. Twenty‐three trials reported the time beyond active treatment, which ranged from immediate end of treatment to years beyond the end of active cancer treatment (Bai 2004; Banasik 2011; Bourke 2011; Burnham 2002; Cadmus 2009; Cho 2006; Courneya 2003b; Culos‐Reed 2006; Daley 2007a; Danhauer 2009; Dimeo 2004; Fillion 2008; Herrero 2006; Knols 2011; McNeely 2008a; Mehnert 2011; Milne 2008a; Mustian 2004; Ohira 2006; Penttinen 2011; Pinto 2003; Segar 1998; Thorsen 2005). Seventeen trials reported the time since cancer diagnosis and it ranged across the trials from immediately after surgery to about 15 years (Cadmus 2009; Cho 2006; Courneya 2003a; Courneya 2009; Culos‐Reed 2006; Danhauer 2009; Dimeo 2004; Donnelly 2011; Fillion 2008; Milne 2008a; Moadel 2007; Ohira 2006; Pinto 2003; Pinto 2005; Speck 2010; Tang 2010; Targ 2002).
Twenty‐four trials were conducted among females only (Banasik 2011; Cadmus 2009; Cho 2006; Courneya 2003c; Daley 2007a; Danhauer 2009; Dodd 2010; Donnelly 2011; Fillion 2008; Heim 2007; Herrero 2006; Mehnert 2011; Milne 2008a; Moadel 2007; Mustian 2004; Ohira 2006; Payne 2008; Penttinen 2011; Pinto 2003; Pinto 2005; Rogers 2009; Segar 1998; Speck 2010; Targ 2002) and 15 trials included a mixed sample of males and females (Bai 2004; Bourke 2011; Burnham 2002; Cohen 2004; Courneya 2003a; Courneya 2003b; Courneya 2009; Culos‐Reed 2006; Dimeo 2004; Knols 2011; McNeely 2008a; Oh 2008; Oh 2010; Tang 2010; Thorsen 2005), with one trial not reporting on the gender of the participants (Berglund 1994). The mean age of the participants ranged between 39 and 68 years, with one trial not reporting on the age of the participants (Berglund 1994). The ethnicity of the participants was reported by 18 trials and 27 trials reported on the education level of the participants, with the majority of trials reporting educational attainment of more than high school. Fifteen trials reported on the socio‐demographic status of the participants and 19 trials reported on the employment status of the participants. Fifteen trials reported on the past exercise history of the participants (Cadmus 2009; Cohen 2004; Courneya 2003a; Courneya 2003b; Courneya 2003c; Courneya 2009; Daley 2007a; Danhauer 2009; Dodd 2010; Heim 2007; Knols 2011; McNeely 2008a; Mehnert 2011; Penttinen 2011; Targ 2002). For detailed information on trial participants see the Characteristics of included studies.
Interventions
Mode of exercise differed across trials. Six trials prescribed strength training by itself (Ohira 2006; Speck 2010) or in combination with walking, stretching, cardiovascular activity, or resistance training (Heim 2007; Herrero 2006; McNeely 2008a; Pinto 2003); five trials prescribed resistance training by itself (Bourke 2011) or in combination with cycling or strength training (Burnham 2002; Knols 2011; McNeely 2008a; Milne 2008a), four trials prescribed walking (Fillion 2008; Payne 2008; Rogers 2009; Tang 2010), and one trial prescribed walking with strength training (Heim 2007); three trials prescribed cycling (Courneya 2003c; Courneya 2009; Dimeo 2004) and four trials prescribed cycling with resistance training (Burnham 2002; Knols 2011; Milne 2008a) or strength training (Herrero 2006). Four trials prescribed yoga (Banasik 2011; Cohen 2004; Culos‐Reed 2006; Danhauer 2009) and three trials incorporated practices of Qigong (Oh 2008; Oh 2010) or Tai Chi (Mustian 2004). Seventeen trials incorporated a range of modalities or allowed participants to choose from a range of preferred modalities (Bai 2004; Berglund 1994; Cadmus 2009; Cho 2006; Courneya 2003a; Courneya 2003b; Daley 2007a; Dodd 2010; Donnelly 2011; Mehnert 2011; Milne 2008a; Penttinen 2011; Pinto 2003; Pinto 2005; Segar 1998; Targ 2002; Thorsen 2005).
In the majority of trials (n = 32) the comparison arm did not receive an exercise prescription (i.e. 'usual care' or 'no intervention') during the course of the trial and for 14 of these trials (Banasik 2011; Cho 2006; Cohen 2004; Courneya 2003b; Courneya 2003c; Courneya 2009; Culos‐Reed 2006; Danhauer 2009; Milne 2008a; Moadel 2007; Ohira 2006; Pinto 2003; Speck 2010; Tang 2010), the comparison arm was a 'waiting list' control wherein participants were offered either a portion or the full exercise program at the completion of the trial. The comparison group in eight trials received an intervention that included educational program, physical therapy, group exercise, and psycho‐oncological interventions (Heim 2007); group psychotherapy (Courneya 2003a); information and coping skill training (Berglund 1994); unstructured psycho‐educational support groups (Targ 2002); psychosocial support therapy (Mustian 2004); progressive relaxation training (Dimeo 2004); light‐intensity body conditioning/stretching (e.g. flexibility and passive stretching) exercises (Daley 2007a); and supervised active and passive range of motion/stretching exercises, postural exercises, and basic strengthening exercises with light weights (1 to 5 kg) and elastic resistance bands (McNeely 2008a).
Length of the exercise intervention varied greatly between trials with a range from three weeks (Dimeo 2004) to one year (Penttinen 2011; Speck 2010), with a modal exercise intervention period of 12 weeks (n = 13 trials). The majority of trials (n = 26) had no follow‐up period between the end of the exercise intervention and the postexercise assessment. Among the 14 trials with a follow‐up period, this period ranged from two months (Tang 2010) to one year (Berglund 1994), with a modal length of three months from the end of the intervention (n = 6). Thirty trials implemented an aerobic exercise program and an additional nine trials implemented a combined (aerobic and anaerobic) exercise program. The nature of exercise program for one trial was unclear (Courneya 2003b).
The intensity of the exercise varied substantially between trials as did the methods used to measure and monitor intensity. Methods used to measure intensity of the exercise included relatively objective measures such as percentage of the maximum heart rate, percentage of maximum oxygen consumption, heart rate and ratings of perceived exertion, and perceived effort to reach a value on the Borg scale (Bourke 2011; Cadmus 2009; Cho 2006; Courneya 2003a; Courneya 2003b; Courneya 2003c; Courneya 2009; Daley 2007a; Dimeo 2004; Dodd 2010; Knols 2011; McNeely 2008a; Mehnert 2011; Pinto 2003; Pinto 2005; Segar 1998; Thorsen 2005). Sixteen trials used a relatively subjective assessment of intensity by documenting a rating of mild, low ‐o moderate, mild to moderate, or vigorous (Bai 2004; Banasik 2011; Burnham 2002; Cohen 2004; Danhauer 2009; Donnelly 2011; Milne 2008a; Moadel 2007; Mustian 2004; Oh 2008; Oh 2010; Payne 2008; Penttinen 2011; Rogers 2009; Tang 2010; Targ 2002).
The frequency and duration of individual exercise sessions, and the total number of exercise sessions varied greatly across the trials. Frequency of the exercise program ranged between once per week to daily and in some trials participants attended exercise sessions at a facility such as a gym, community center, or university or hospital facility and were advised to practice at home. Duration of exercise sessions ranged from 20 minutes to more than 90 minutes, with a modal duration of 90 minutes (n = 7). In some trials the frequency of the exercise program and duration of each exercise session increased during the course of the trial. The total number of exercise sessions ranged between 7 and 12 sessions. In terms of the format of implementing the exercise program, 12 trials each used a group or individual format and an additional 11 trials used a combined group and individual format. The majority of trials (n = 20) implemented the exercise program in a facility such as a gym, community center, yoga studio, or university or hospital facility (Banasik 2011; Berglund 1994; Burnham 2002; Courneya 2003c; Courneya 2009; Culos‐Reed 2006; Daley 2007a; Danhauer 2009; Dimeo 2004; Herrero 2006; Knols 2011; Mehnert 2011; Milne 2008a; Mustian 2004; Oh 2008; Oh 2010; Ohira 2006; Segar 1998; Speck 2010; Targ 2002), 12 trials implemented the exercise program at both a facility and the participant's home (Bourke 2011; Cadmus 2009; Cho 2006; Cohen 2004; Courneya 2003a; Fillion 2008; Heim 2007; McNeely 2008a; Moadel 2007; Penttinen 2011; Pinto 2003; Rogers 2009), seven trials implemented the exercise program only at the participant's home (Courneya 2003b; Dodd 2010; Donnelly 2011; Payne 2008; Pinto 2005; Tang 2010; Thorsen 2005), and one trial did not report the location of implementation of the exercise program (Bai 2004). The majority of the trials (n = 28) enlisted the services of exercise physiologists, sports trainers, yoga instructors, or other professionals to lead the exercise program.
For detailed information on interventions see Characteristics of included studies table.
Outcome measures
See: Table 2 for a summary of instruments, the HRQoL domains assessed, and trials using each scale.
1. HRQoL instruments used by investigators.
Instrument name | Abbreviation | Overall domain or subscale | Direction of response | Trials using this scale |
Health‐related quality of life | ||||
Cancer Rehabilitation Evaluation System Short Form | CARES‐SF | HRQoL | Higher score indicates worse status | Ohira 2006 |
Chae and Cho |
Cho VAS | HRQoL | Higher score indicates better status | Cho 2006 |
European Organization for Research and Treatment of Cancer Quality of Life Questionnaire‐C30 | QLQ‐C30 | HRQoL | Higher score indicates better status | Culos‐Reed 2006; Herrero 2006; Knols 2011; Mehnert 2011; Penttinen 2011; Thorsen 2005 |
Functional Assessment of Cancer Therapy ‐ Anemia | FACT‐An | HRQoL | Higher score indicates better status | Courneya 2009; McNeely 2008a |
Functional Assessment of Cancer Therapy ‐ Breast | FACT‐B | HRQoL | Higher score indicates better status | Banasik 2011; Cadmus 2009; Courneya 2003c; Daley 2007a; Danhauer 2009Milne 2008a; Rogers 2009 |
Functional Assessment of Cancer Therapy ‐ Colorectal | FACT‐C | HRQoL | Higher score indicates better status | Bourke 2011; Courneya 2003b |
Functional Assessment of Cancer Therapy ‐ General | FACT‐G | HRQoL | Higher score indicates better status | Cadmus 2009; Courneya 2003a; Courneya 2003b; Courneya 2003c; Daley 2007a; Donnelly 2011; Heim 2007; McNeely 2008a; Milne 2008a; Moadel 2007; Oh 2010; Rogers 2009 |
Functional Assessment of Cancer Therapy ‐ Fatigue | FACT‐F | HRQoL | Higher score indicates better status | Heim 2007 |
Quality of Life Index for Cancer Patients | QoL Index | HRQoL | Higher score indicates better status | Burnham 2002 |
Medical Outcomes Study Short Form‐36 | MOS SF‐36 | HRQoL | Higher score indicates better status | Cadmus 2009; Mehnert 2011 |
Functional Assessment of Chronic Illness Therapy ‐ Fatigue | FACIT‐F | HRQoL | Higher score indicates better status | Mustian 2004; Targ 2002 |
Condition‐specific HRQoL | ||||
Functional Assessment of Cancer Therapy ‐ Breast | FACT‐B | Additional breast cancer concerns | Higher score indicates better status | Banasik 2011; Cadmus 2009; Courneya 2003c; Daley 2007a; Danhauer 2009; Milne 2008a; Rogers 2009 |
Functional Assessment of Cancer Therapy ‐ Colorectal | FACT‐C | Colorectal cancer scale | Higher score indicates better status | Courneya 2003b |
Functional Assessment of Cancer Therapy | FACT | Lymphoma cancer concerns | Higher score indicates better status | Courneya 2009 |
Functional Assessment of Chronic Illness Therapy ‐ Fatigue | FACIT‐F | General cancer concerns | Higher score indicates better status | Targ 2002 |
Neck Dissection Impairment Index | NDII | Head and neck specific concerns | Higher score indicates better status | McNeely 2008a |
Anxiety | ||||
Hospital Anxiety and Depression Scale | HADS | Anxiety | Higher score indicates worse status | Berglund 1994; Heim 2007; Mehnert 2011; Thorsen 2005 |
State‐Trait Anxiety Scale | STAI | State anxiety | Higher score indicates worse status | Cadmus 2009; Cohen 2004; Segar 1998 |
Linear Analog Self‐Assessment | LASA | Anxiety | Higher score indicates worse status | Burnham 2002 |
Profile of Mood Scale | POMS | Tension‐anxiety | Higher score indicates worse status | Culos‐Reed 2006; Moadel 2007; Oh 2010; Pinto 2003; Targ 2002 |
Body image/self‐esteem | ||||
Body Esteem Scale | BES | Weight concern | Higher score indicates better status | Pinto 2003; Pinto 2005 |
Physical Self‐Perception Profile | PSPP | Body image | Higher score indicates better status | Daley 2007a |
Body Image Questionnaire | BIQ | Individual body image | Higher score indicates worse status | Mehnert 2011 |
Body Image and Relationships Scale | BIRS | Self‐perception | Higher score indicates worse status | Speck 2010 |
Social Physique Anxiety Scale | SPAS | Anxiety about body | Higher score indicates worse status | Milne 2008a |
Rosenberg Self‐Esteem | Self‐esteem | Higher score indicates better status | Cadmus 2009; Courneya 2003c; Mustian 2004; Segar 1998 | |
Cognitive function | ||||
European Organization for Research and Treatment of Cancer Quality of Life Questionnaire‐C30 | QLQ‐C30 | Cognitive functioning | Higher score indicates better status | Bai 2004; Dimeo 2004; Herrero 2006; Knols 2011; Mehnert 2011; Penttinen 2011 |
Symptoms of Stress Inventory | SOSI | Cognitive disorganization | Higher score indicates worse status | Culos‐Reed 2006 |
Functional Assessment of Cancer Therapy ‐ Cognitive | FACT‐Cog | Cognitive functioning | Higher score indicates worse status | Oh 2010; Rogers 2009 |
Profile of Mood Scale | POMS | Confusion‐bewilderment | Higher score indicates worse status | Moadel 2007; Oh 2010; Pinto 2003; Targ 2002 |
Profile of Mood Scale | POMS | Concentration | Higher score indicates worse status | Culos‐Reed 2006 |
Linear Analog Self‐Assessment | LASA | Confusion | Higher score indicates worse status | Burnham 2002 |
Depression | ||||
Centers for Epidemiologic Studies ‐ Depression Scale | CES‐D | Depression | Higher score indicates worse status | Cadmus 2009; Cohen 2004; Courneya 2003a; Courneya 2003b; Courneya 2009; Danhauer 2009; Dodd 2010; Payne 2008 |
Hospital Anxiety and Depression Scale | HADS | Depression | Higher score indicates worse status | Berglund 1994; Mehnert 2011; Thorsen 2005 |
Beck Depression Inventory‐II | BDI or BECK | Depression | Higher score indicates worse status | Daley 2007a; Donnelly 2011; Segar 1998 |
Finnish version of Beck | BECK | Depression | Higher score indicates worse status | Penttinen 2011 |
Linear Analog Self‐Assessment | LASA | Depression | Higher score indicates worse status | Burnham 2002 |
Profile of Mood Scale | POMS | Depression‐dejection | Higher score indicates worse status | Culos‐Reed 2006; Oh 2010; Pinto 2003; Targ 2002 |
Emotional function/mental health | ||||
Functional Assessment of Cancer Therapy | FACT sub‐scale | Emotional well‐being | Higher score indicates better status | Banasik 2011; Cadmus 2009; Courneya 2003b; Courneya 2003c; Daley 2007a; Danhauer 2009; Milne 2008a; Moadel 2007; Oh 2010; Rogers 2009 |
Functional Assessment of Chronic Illness ‐ Fatigue | FACIT‐F | Emotional well‐being | Higher score indicates better status | Targ 2002 |
European Organization for Research and Treatment of Cancer Quality of Life Questionnaire‐C30 | QLQ‐C30 | Emotional functioning | Higher score indicates better status | Bai 2004; Culos‐Reed 2006; Dimeo 2004; Herrero 2006; Knols 2011; Mehnert 2011; Penttinen 2011; Thorsen 2005 |
Symptoms of Stress Inventory | SOSI | Emotional irritability | Higher score indicates worse status | Culos‐Reed 2006 |
Profile of Mood Scale | POMS | Mood | Higher score indicates worse status | Culos‐Reed 2006; Moadel 2007; Oh 2010; Pinto 2003; Pinto 2005; Targ 2002 |
Profile of Mood Scale | POMS | Anger‐hostility | Higher score indicates worse status | Oh 2010; Pinto 2003; Targ 2002 |
Profile of Mood Scale | POMS | Anxiety + depression scales | Higher score indicates worse status | Fillion 2008 |
Profile of Mood Scale | POMS | Irritability |
Higher score indicates worse status | Moadel 2007; Oh 2010 |
Linear Analog Self‐Assessment | LASA | Anger | Higher score indicates worse status | Burnham 2002 |
Fordyce Happiness Measure | FORDYCE | Happiness | Higher score indicates better status | Cadmus 2009 |
Happiness Measure | HM | Happiness | Higher score indicates better status | Courneya 2003c; Courneya 2009 |
Medical Outcomes Study Short Form‐12 | MOS SF‐12 | Mental health component | Higher score indicates better status | Danhauer 2009; Fillion 2008 |
Medical Outcomes Study Short Form‐36 | MOS SF‐36 | Mental health component | Higher score indicates better status | Cadmus 2009; Speck 2010; Tang 2010 |
Positive and Negative Affect Scale | PANAS | Positivity and negativity | Higher score indicates better status | Danhauer 2009; Donnelly 2011; Pinto 2003 |
Cancer Rehabilitation Evaluation System Short Form | CARES‐SF | Psychological functioning | reported as % change, higher score indicates worse status | Ohira 2006 |
Functional Assessment of Cancer Therapy ‐ Breast | FACT‐B | Psychological functioning | Higher score indicates better status | Banasik 2011; Courneya 2003c; Daley 2007a; Danhauer 2009; Milne 2008a; Rogers 2009 |
Psychosocial Adjustment Scale (Lee) | Psychological functioning | Higher score indicates better status | Cho 2006 | |
Satisfaction with Life Scale | SWLS | Satisfaction | Higher score indicates better status | Courneya 2003a; Courneya 2003b; Daley 2007a |
Cohen's Perceived Stress Scale | Emotional function | Higher score indicates worse status | Cadmus 2009 | |
Symptoms of Stress Inventory | SOSI | Stress | Higher score indicates better status | Berglund 1994; Mehnert 2011; Thorsen 2005 |
Symptom Checklist‐90 Revised | SCL‐90R | Psychological symptom burden | Mehnert 2011 | |
Fatigue | ||||
European Organization for Research and Treatment of Cancer Quality of Life Questionnaire‐C30 | QLQ‐C30 | Fatigue | Higher score indicates worse status | Bai 2004; Dimeo 2004; Herrero 2006; Knols 2011; Mehnert 2011; Thorsen 2005 |
Functional Assessment of Cancer Therapy | FACT sub‐scale | Fatigue | Higher score indicates better status | Bourke 2011; Courneya 2003a; Courneya 2003b; Courneya 2003c; Courneya 2009; Danhauer 2009; Donnelly 2011; Heim 2007; Knols 2011; McNeely 2008a; Rogers 2009 |
Profile of Mood Scale | POMS | Fatigue‐inertia | Higher score indicates worse status | Oh 2010; Pinto 2003; Targ 2002 |
Profile of Mood Scale | POMS | Vigor‐activity | Higher score indicates better status | Fillion 2008; Oh 2010; Pinto 2005; Targ 2002 |
Linear Analog Self‐Assessment | LASA | Fatigue | Higher score indicates worse status | Burnham 2002 |
Schwartz Cancer Fatigue Scale | SCFS | Fatigue | Higher score indicates worse status | Milne 2008a |
Multidimensional Fatigue Inventory | MFI | Fatigue | Higher score indicates worse status | Donnelly 2011; Fillion 2008; Heim 2007 |
Revised Piper Fatigue Scale | PFS | Fatigue | Higher score indicates worse status | Daley 2007a; Dodd 2010; Payne 2008 |
Functional Assessment of Chronic Illness Therapy ‐ Fatigue | FACIT‐F | Fatigue | Higher score indicates better status | Penttinen 2011 |
Linear Analog Scale for fatigue | Fatigue | Higher score indicates worse status | Pinto 2005 | |
Medical Outcomes Study Short Form‐36 | MOS SF‐36 | Vitality | Higher score indicates better status | Cadmus 2009 |
Linear Analog Self‐Assessment Scale | LASA | Vitality | Higher score indicates better status | Burnham 2002 |
Brief Fatigue Inventory | BFI | Fatigue | Higher score indicates better status | Cohen 2004 |
General health perspective | ||||
European Organization for Research and Treatment of Cancer Quality of Life Questionnaire‐C30 | QLQ‐C30 | General health score | Higher score indicates better status | Dimeo 2004; Donnelly 2011; Knols 2011; Mehnert 2011 |
Medical Outcomes Study Short Form‐12 | MOS SF‐12 | Item on health | Higher score indicates better status | Courneya 2009 |
Single question on health | Perceived health | Higher score indicates better status | Rogers 2009 | |
Pain | ||||
European Organization for Research and Treatment of Cancer Quality of Life Questionnaire‐C30 | QLQ‐C30 | Pain | Higher score indicates worse status | Dimeo 2004; Knols 2011; Mehnert 2011 |
Medical Outcomes Study Short Form‐36 | MOS SF‐36 | Bodily pain | Higher score indicates better status | Cadmus 2009 |
Shoulder Pain and Disability Index | SPADI | Pain | Higher score indicates worse status | McNeely 2008a |
Worst Pain Intensity Scale | WPIS | Pain | Higher score indicates worse status | Dodd 2010 |
Brief Pain Inventory | BPI | Pain | Higher score indicates worse status | Fillion 2008 |
Physical well‐being | ||||
Cancer Rehabilitation Evaluation System Short Form | CARES‐SF | Physical function | reported as % change, Higher score indicates worse status | Ohira 2006 |
European Organization for Research and Treatment of Cancer Quality of Life Questionnaire‐C30 | QLQ‐C30 | Physical function | Higher score indicates better status | Bai 2004; Dimeo 2004; Herrero 2006; Knols 2011; Thorsen 2005 |
Functional Assessment of Cancer Therapy ‐ Breast | FACT‐B | Physical well‐being | Higher score indicates better status | Banasik 2011; Cadmus 2009; Courneya 2003a; Courneya 2003b; Courneya 2003c; Courneya 2009; Daley 2007a; Danhauer 2009; Heim 2007; Mehnert 2011; Milne 2008a; Moadel 2007; Rogers 2009 |
Functional Assessment of Chronic Illness Fatigue | FACIT‐F | Physical well‐being | Higher score indicates better status | Targ 2002 |
Medical Outcomes Study Short Form‐12 | MOS SF‐12 | Physical function | Higher score indicates better status | Danhauer 2009; Fillion 2008 |
Body Image and Relationships Scale | BIRS | Strength and health | Higher score indicates worse status | Speck 2010 |
Medical Outcomes Study Short Form‐36 | MOS SF‐36 | Physical component | Higher score indicates better status | Cadmus 2009; Speck 2010; Tang 2010 |
Body Esteem Scale | BES | Physical condition | Higher score indicates better status | Pinto 2003; Pinto 2005 |
Role function | ||||
Functional Assessment of Cancer Therapy | FACT sub‐scale | Functional well‐being | Higher score indicates better status | Banasik 2011; Cadmus 2009; Courneya 2003a; Courneya 2003b; Courneya 2003c; Daley 2007a; Danhauer 2009; Heim 2007; Milne 2008a; Moadel 2007; Oh 2010; Rogers 2009 |
European Organization for Research and Treatment of Cancer Quality of Life Questionnaire‐C30 | QLQ‐C30 | Functional well‐being | Higher score indicates better status | Bai 2004; Dimeo 2004; Herrero 2006; Knols 2011; Mehnert 2011 |
Functional Assessment of Chronic Illness Fatigue | FACIT‐F | Functional well‐being | Higher score indicates better status | Targ 2002 |
Medical Outcomes Study Short Form‐36 | MOS SF‐36 | Physical role | Higher score indicates better status | Cadmus 2009 |
Cancer Rehabilitation Evaluation System Short Form | CARES‐SF | Marital role | Reported as % change, higher score indicates worse status | Ohira 2006 |
Sexuality | ||||
Body Esteem Scale | BES | Sexual attractiveness | Higher score indicates better status | Pinto 2003; Pinto 2005 |
Cancer Rehabilitation Evaluation System Short Form | CARES‐SF | Sexual | Reported at % change, higher score indicates worse status | Ohira 2006 |
Body Image and Relationships Scale | BIRS | Appearance and sexuality | Higher score indicates worse status | Speck 2010 |
Sleep | ||||
European Organization for Research and Treatment of Cancer Quality of Life Questionnaire‐C30 | QLQ‐C30 | Insomnia | Higher score indicates worse status | Dimeo 2004; Knols 2011; Mehnert 2011; Penttinen 2011 |
Pittsburgh Sleep Quality Index | PSQI | Sleep disturbance | Higher score indicates worse status | Cohen 2004; Danhauer 2009; Donnelly 2011; Payne 2008; Rogers 2009 |
General Sleep Disturbance Scale | GSDS | Sleep disturbance | Higher score indicates worse status | Dodd 2010 |
Taiwanese Pittsburgh Sleep Quality Index | PSQI | Sleep disturbance | Higher score indicates worse status | Tang 2010 |
Social functioning | ||||
European Organization for Research and Treatment of Cancer Quality of Life Questionnaire‐C30 | QLQ‐C30 | Social functioning | Higher score indicates better status | Bai 2004; Dimeo 2004; Herrero 2006; Knols 2011; Mehnert 2011; Penttinen 2011 |
Functional Assessment of Cancer Therapy | FACT sub‐scale | Social/family well‐being | Higher score indicates better status | Banasik 2011; Cadmus 2009; Courneya 2003a; Courneya 2003b; Courneya 2003c; Daley 2007a; Danhauer 2009; Milne 2008a; Moadel 2007; Oh 2010; Rogers 2009 |
Functional Assessment of Chronic Illness ‐ Fatigue | FACIT‐F | Social/family well‐being | Higher score indicates better status | Targ 2002 |
Medical Outcomes Study Short Form‐36 | MOS SF‐36 | Social/family well‐being | Higher score indicates better status | Cadmus 2009 |
Social Barriers | Social function | Higher score indicates better status | Mehnert 2011 | |
Body Image and Relationships Scale | BIRS | Social barriers | Higher score indicates worse status | Speck 2010 |
Body Image Questionnaire | BIQ | Social body image | Higher score indicates worse status | Mehnert 2011 |
Spiritual function | ||||
Functional Assessment of Cancer Therapy ‐ Breast | FACT‐B | Spiritual | Higher score indicates better status | Courneya 2003a; Rogers 2009; Targ 2002 |
FACIT ‐ Spirituality | FACIT‐SP | Peace | Higher score indicates better status | Danhauer 2009; Moadel 2007 |
Principles of Living Survey | PLS | Spiritual | Higher score indicates better status | Targ 2002 |
HRQoL assessment included a wide range of measures including the European Organization for Research and Treatment of Cancer (EOTRC) Quality of Life Questionnaire‐C30 (QLQ‐C30) (Culos‐Reed 2006; Herrero 2006; Knols 2011; Mehnert 2011; Penttinen 2011; Thorsen 2005), Functional Assessment of Cancer Therapy ‐ General (FACT‐G) (Cadmus 2009; Courneya 2003a; Courneya 2003b; Courneya 2003c; Daley 2007a; Donnelly 2011; Heim 2007; McNeely 2008a; Milne 2008a; Moadel 2007; Oh 2010; Rogers 2009), Functional Assessment of Cancer Therapy ‐ Breast (FACT‐B) (Banasik 2011; Cadmus 2009; Courneya 2003c; Daley 2007a; Danhauer 2009; Milne 2008a; Rogers 2009), Functional Assessment of Cancer Therapy ‐ Colorectal (FACT‐C) (Bourke 2011; Courneya 2003b), Functional Assessment of Cancer Therapy ‐ Fatigue (FACT‐F) (Heim 2007), Cancer Rehabilitation Evaluation System Short Form (CARES‐SF) (Ohira 2006), Chae and Cho (Cho 2006), Functional Assessment of Cancer Therapy ‐ Anemia (FACT‐An) (Courneya 2009; McNeely 2008a), Quality of Life for Cancer Patients (QoL Index) (Burnham 2002), Medical Outcomes Study Short Form‐36 (MOS SF‐36) (Cadmus 2009; Mehnert 2011), and Functional Assessment of Chronic Illness Therapy ‐ Fatigue (FACIT‐F) (Mustian 2004; Targ 2002). Some trials incorporated condition‐specific HRQoL measures such as Functional Assessment of Cancer Therapy ‐ lymphoma (FACT‐Lym) (Courneya 2009) for a measure of lymphoma symptoms and the Neck Dissection Impairment Index (McNeely 2008a) for treatment‐specific quality of life (QoL) for head and neck cancer survivors.
In addition to measuring overall HRQoL, trials measured HRQoL domains including:
anxiety measured using the Hospital Anxiety and Depression Scale (HADS) (Berglund 1994; Heim 2007; Mehnert 2011; Thorsen 2005), State‐Trait Anxiety Scale (STAI) (Cadmus 2009; Cohen 2004; Segar 1998), Linear Analog Self Assessment (LASA) (Burnham 2002), and Profile of Mood Scale (POMS) (Culos‐Reed 2006; Moadel 2007; Oh 2010; Pinto 2003; Targ 2002);
body image/self‐esteem measured using the Body Esteem Scale (BES) (Pinto 2003; Pinto 2005), Physical Self‐Perception Profile (PSPP) (Daley 2007a), Body Image Questionnaire (BIQ) (Mehnert 2011), Body Image and Relationships Scale (BIRS) (Speck 2010), Social Physique Anxiety Scale (SPAS) (Milne 2008a), and the Rosenberg Self‐Esteem scale (Cadmus 2009; Courneya 2003c; Mustian 2004; Segar 1998);
cognitive function measured using the QLQ‐C30 (Bai 2004; Dimeo 2004; Herrero 2006; Knols 2011; Mehnert 2011; Penttinen 2011), Symptoms of Stress Inventory (SOSI) (Culos‐Reed 2006), Functional Assessment of Cancer Therapy ‐ Cognitive (FACT‐C) (Oh 2010; Rogers 2009), POMS (Culos‐Reed 2006; Moadel 2007; Oh 2010; Pinto 2003; Targ 2002), and LASA (Burnham 2002);
depression measured using the Centers for Epidemiologic Studies ‐ Depression Scale (CES‐D) (Cadmus 2009; Cohen 2004; Courneya 2003a; Courneya 2003b; Courneya 2009; Danhauer 2009; Dodd 2010; Payne 2008), HADS (Berglund 1994; Mehnert 2011; Thorsen 2005), Beck Depression Inventory‐II (BDI) (Daley 2007a; Donnelly 2011; Segar 1998), Finnish Version of BDI (Penttinen 2011), LASA (Burnham 2002), and POMS (Culos‐Reed 2006; Oh 2010; Pinto 2003; Targ 2002 ),
emotional function/mental health measured using the FACT‐B (Banasik 2011; Cadmus 2009; Courneya 2003b; Courneya 2003c; Daley 2007a; Danhauer 2009; Milne 2008a; Moadel 2007; Oh 2010; Rogers 2009), FACIT‐F (Targ 2002), POMS (mood) (Culos‐Reed 2006; Moadel 2007; Oh 2010; Pinto 2003; Pinto 2005; Targ 2002), POMS (anger‐hostility) (Oh 2010; Pinto 2003; Targ 2002), POMS (anxiety and depression scales) (Fillion 2008), POMS (irritability) (Moadel 2007; Oh 2010), QLQ‐C30 (Bai 2004; Culos‐Reed 2006; Dimeo 2004; Herrero 2006; Knols 2011; Mehnert 2011; Penttinen 2011; Thorsen 2005), SOSI (Culos‐Reed 2006), LASA (Burnham 2002), Psychosocial scale (Cho 2006), Fordyce Happiness Measure (Fordyce) (Cadmus 2009), Happiness Measure (HM) (Courneya 2003c; Courneya 2009), Medical Outcomes Study Short Form‐12 (MOS SF‐12) (Danhauer 2009; Fillion 2008), MOS SF‐36 (Cadmus 2009; Speck 2010; Tang 2010), Positive and Negative Affect Scale (PANAS) (Danhauer 2009; Donnelly 2011; Pinto 2003), CARES‐SF (Ohira 2006), FACT‐B (Banasik 2011; Courneya 2003c; Daley 2007a; Danhauer 2009; Milne 2008a; Rogers 2009), Satisfaction with Life Scale (SWLS) (Courneya 2003a; Courneya 2003b; Daley 2007a), Cohen's Perceived Stress Scale (Cadmus 2009), SOSI (Berglund 1994; Mehnert 2011; Thorsen 2005), and Symptom Checklist‐90 Revised (SCL‐90R) (Mehnert 2011).
fatigue, a HRQoL domain, was measured using the QLQ‐C30 (Bai 2004; Dimeo 2004; Herrero 2006; Knols 2011; Mehnert 2011; Thorsen 2005), FACT‐F (Bourke 2011; Courneya 2003a; Courneya 2003b; Courneya 2003c; Courneya 2009; Danhauer 2009; Donnelly 2011; Heim 2007; Knols 2011; McNeely 2008a; Rogers 2009), POMS (fatigue‐inertia) (Oh 2010; Pinto 2003; Targ 2002), POMS (vigor‐activity) (Fillion 2008; Oh 2010; Pinto 2005; Targ 2002), LASA (Burnham 2002), Schwartz Cancer Fatigue Scale (SCFS) (Milne 2008a), Multidimensional Fatigue Inventory (MFI) (Donnelly 2011; Fillion 2008; Heim 2007), Revised Piper Fatigue Scale (PFS) (Daley 2007a; Dodd 2010; Payne 2008), FACIT‐F (Penttinen 2011), Linear Analog Scale for Fatigue (Pinto 2005), MOS SF‐36 (Cadmus 2009), and Brief Fatigue Inventory (BFI) (Cohen 2004).
general health perspective, a HRQoL domain, was measured using the QLQ‐C30 (Dimeo 2004; Donnelly 2011; Knols 2011; Mehnert 2011), MOS SF‐12 (Courneya 2009), and based on a single question on health (Rogers 2009).
pain measured using the QLQ‐C30 (Dimeo 2004; Knols 2011; Mehnert 2011), MOS SF‐36 (Cadmus 2009), Shoulder Pain and Disability Index (SPADI) (McNeely 2008a), Worst Pain Intensity Scale (WPIS) (Dodd 2010), and Brief Pain Inventory (BPI) (Fillion 2008).
physical well‐being measured using the CARES‐SF (Ohira 2006), QLQ‐C30 (Bai 2004; Dimeo 2004; Herrero 2006; Knols 2011; Thorsen 2005), FACT‐B (Banasik 2011; Cadmus 2009; Courneya 2003a; Courneya 2003b; Courneya 2003c; Courneya 2009; Daley 2007a; Danhauer 2009; Heim 2007; Mehnert 2011; Milne 2008a; Moadel 2007; Rogers 2009), FACIT‐F (Targ 2002), MOS SF‐12 (Danhauer 2009; Fillion 2008), BIRS (Speck 2010), MOS SF‐36 (Cadmus 2009; Speck 2010; Tang 2010), and BES (Pinto 2003; Pinto 2005).
sexuality measured using the BES (Pinto 2003; Pinto 2005), CARES‐SF (Ohira 2006), and the BIRS (Speck 2010).
sleep measured using the QLQ‐C30 (Dimeo 2004; Knols 2011; Mehnert 2011; Penttinen 2011), Pittsburg Sleep Quality Index (PSQI) (Cohen 2004; Danhauer 2009; Donnelly 2011; Payne 2008; Rogers 2009), General Sleep Disturbance Scale (GSDS) (Dodd 2010), and the Taiwanese PSQI (Tang 2010).
role function measured using FACT (Banasik 2011; Cadmus 2009; Courneya 2003a; Courneya 2003b; Courneya 2003c; Daley 2007a; Danhauer 2009; Heim 2007; Milne 2008a; Moadel 2007; Oh 2010; Rogers 2009), QLQ‐C30 (Bai 2004; Dimeo 2004; Herrero 2006; Knols 2011; Mehnert 2011), FACIT‐F (Targ 2002), MOS SF‐36 (Cadmus 2009), and CARES‐SF (Ohira 2006).
social function measured using the QLQ‐C30 (Bai 2004; Dimeo 2004; Herrero 2006; Knols 2011; Mehnert 2011; Penttinen 2011), FACT (Banasik 2011; Cadmus 2009; Courneya 2003a; Courneya 2003b; Courneya 2003c; Daley 2007a; Danhauer 2009; Milne 2008a; Moadel 2007; Oh 2010; Rogers 2009), FACIT‐F (Targ 2002), MOS SF‐36 (Cadmus 2009), Social Barriers Scale (Mehnert 2011), BIRS (Speck 2010), and BIQ (Mehnert 2011).
spiritual function measured using the FACT‐B (Courneya 2003a; Rogers 2009; Targ 2002), Functional Assessment of Chronic Illness Therapy ‐ Spiritual (FACIT‐Sp) (Danhauer 2009; Moadel 2007), and Principles of Living Survey (Targ 2002).
Several trials measured HRQoL and non‐HRQoL outcomes. The most frequently measured non‐HRQoL outcomes included body composition or anthropometric measures (n = 11), fitness (n = 10), physiologic measures (n = 9), physical function measures (n = 8), and physical activity (n = 8). Other non‐HRQoL outcomes assessed included physical outcomes, flexibility, nausea, and vomiting.
Twelve trials measured both HRQoL and non‐HRQoL outcomes but did not identify a primary outcome (Bai 2004; Berglund 1994; Bourke 2011; Cadmus 2009; Cho 2006; Courneya 2003a; Dodd 2010; Heim 2007; Payne 2008; Penttinen 2011; Pinto 2003; Rogers 2009). Among the 28 trials that identified a primary outcome, 10 trials measured only HRQoL outcomes that were designated as primary (Banasik 2011; Cohen 2004; Danhauer 2009; Dimeo 2004; Donnelly 2011; Mehnert 2011; Milne 2008a; Segar 1998; Tang 2010; Targ 2002). Of the remaining 18 trials, 15 trials measured both HRQoL and non‐HRQoL outcomes and identified HRQoL outcomes as primary (Burnham 2002; Courneya 2003b; Courneya 2003c; Culos‐Reed 2006; Daley 2007a; Fillion 2008; Herrero 2006; Knols 2011; McNeely 2008a; Moadel 2007; Mustian 2004; Oh 2008; Oh 2010; Ohira 2006; Pinto 2005), and three trials identified non‐HRQoL outcomes as primary (Courneya 2009; Speck 2010; Thorsen 2005).
For detailed information on outcome measures see Characteristics of included studies table.
Excluded studies
The 82 trials retrieved and subsequently excluded did not meet the inclusion criteria for the following reasons: 26 trials did not compare exercise with no exercise, another intervention, or usual care (Basen‐Engquist 2006; Carmack Taylor 2004; Carmack Taylor 2006; Cheung 2003; Courneya 2004b; Demark‐Wahnefried 2003; Demark‐Wahnefried 2003a; Demark‐Wahnefried 2006; Demark‐Wahnefried 2007; Dincer 2007; Dong 2006; Elliott 2006; Kim 2011; Korstjens 2008; Livingston 2011; McClure 2010; Morey 2009; Poorkiani 2010; Sandel 2005; Snyder 2009; Vallance 2007a; Vallance 2008; van Weert 2005; van Weert 2010; von Gruenigen 2009; Zhang 2006); 20 trials did not measure overall HRQoL or an HRQoL domain as a trial outcome (Bloom 2008; Carson 2009; Courneya 2004c; Courneya 2004a; Courneya 2005; Daley 2007; Duijts 2009; Fairey 2005; Fairey 2005a; Filocamo 2005; Kim 2010; Lazowski 1999; Ligibel 2008; May 2008; Milne 2008; Mustian 2006; Nikander 2007; Pinto 2009; Twiss 2009; Wall 2000); eight trials included participants all, or a majority, of whom were undergoing active treatment for their cancer (Carmack Taylor 2007; Courneya 2008; Griffith 2009; Houborg 2006; Jarden 2009; Mutrie 2007; Segal 2001; Segal 2003); two trials were not an RCT or CCT (Blanchard 2001; Gordon 2005); and one included participants below 18 years of age (Braam 2010). Additionally, six trials were excluded because they focused on complications due to treatment (e.g. lymphedema or menopause) rather than improving whole body function or HRQoL (Beurskens 2007; Cinar 2008; Kilbreath 2006; McKenzie 2003; McNeely 2004) or participants were not cancer survivors or undergoing treatment for cancer (Osei‐Tutu 2005). The remaining 19 trials were excluded for meeting more than one of the reasons for exclusion (Cheema 2006; Elkin 1998; Emslie 2007; Hayes 2004; Hughes 2004; Hughes 2008; Jones 2004a; Jones 2008; Kolden 2002; Mansky 2006; Mathewson‐Chapman 1997; Matthews 2007; Midtgaard 2006; Rabin 2006; Schneider 2007; Sprod 2005; Vallance 2007; Vallance 2008a; Yeh 2011). For detailed information on reasons for exclusion of retrieved studies see the Characteristics of excluded studies table.
Risk of bias in included studies
The included studies were assessed for risk of bias using the 'Risk of Bias' assessment tool and recommendations for judging risk of bias provided in Chapter 8 of the Cochrane Handbook for Systematic Reviews of Interventions (Higgins 2011). For each trial the risk of bias was detailed in the 'risk of bias' tables included with the Characteristics of included studies and the 'risk of bias' summary (Figure 2). In addition, an overall assessment of risk of bias is presented in Figure 3.
Allocation
Twenty‐two trials were at a low risk of selection bias due to adequate generation of the randomized sequence as the trials used a random component to generate their sequence. Three trials had a high risk of selection bias as they used a non‐random component to generate their sequence (Cho 2006; Heim 2007; Segar 1998). Fifteen trials were considered to have an unclear risk of selection bias, largely because the generation of the random sequence was not described (Bai 2004; Banasik 2011; Burnham 2002; Culos‐Reed 2006; Danhauer 2009; Dodd 2010; Herrero 2006; Mehnert 2011; Moadel 2007; Mustian 2004; Payne 2008; Penttinen 2011; Pinto 2003; Pinto 2005; Targ 2002).
Seventeen trials were at a low risk of selection bias owing to inadequate concealment of allocation to the intervention as the participants and investigators could not foresee assignment to the study groups. Two trials had a high risk of selection bias as the participants or investigators might have foreseen assignment to the study groups (Courneya 2003a; Heim 2007). Twenty‐one trials were considered to have an unclear risk of selection bias owing to allocation concealment, largely because the method of concealment either was not described or not described in detail to allow a definite judgment (Bai 2004; Banasik 2011; Berglund 1994; Burnham 2002; Cho 2006; Courneya 2003b; Culos‐Reed 2006; Danhauer 2009; Dodd 2010; Moadel 2007; Mustian 2004; Oh 2008; Oh 2010; Payne 2008; Penttinen 2011; Pinto 2003; Pinto 2005; Rogers 2009; Segar 1998; Tang 2010; Targ 2002).
Blinding
All trials included in this review were at high risk for performance bias because, owing to the nature of the intervention (exercise), it was not possible to blind the trial personnel and participants.
Five trials were at a low risk for detection bias because the outcome assessors were unaware about the allocation of the participants to the study groups (Courneya 2003b; Donnelly 2011; Herrero 2006; Knols 2011; Ohira 2006), although this was typically for outcome assessors measuring physiologic outcomes rather than HRQoL outcomes. Two trials were considered to have unclear risk for detection bias (Courneya 2003c; Speck 2010). Thirty‐three trials were at high risk for detection bias.
Incomplete outcome data
Twelve trials were at a low risk of attrition bias due to the amount, nature, or handling of incomplete outcome data (Bai 2004; Bourke 2011; Cadmus 2009; Courneya 2003b; Courneya 2003c; Daley 2007a; Dimeo 2004; Donnelly 2011; McNeely 2008a; Milne 2008a; Oh 2010; Tang 2010) and three trials were considered to have an unclear risk for attrition bias (Courneya 2009; Moadel 2007; Targ 2002). Twenty‐five trials were at high risk for attrition bias.
Selective reporting
Thirty‐eight trials were at a low risk of reporting bias as, based on the information provided by the trial authors, there was no reason to believe that there was selective reporting of the primary and secondary outcomes. One trial each was considered at high risk (Speck 2010) or unclear risk (Oh 2008) for reporting bias.
Other potential sources of bias
Thirty‐two trials were at a low risk for other biases such as sample size, description of study sample, and generalizability of findings. Six trials were considered to be at high risk for other biases (Banasik 2011; Culos‐Reed 2006; Dimeo 2004; Mehnert 2011; Milne 2008a; Payne 2008) and two trials were at unclear risk for other biases (Heim 2007; Oh 2008).
Effects of interventions
See: Table 1
Authors reported trial results either as change in score from baseline to follow‐up or follow‐up values. We completed meta‐analyses for both types of outcomes and for each follow‐up time period. Because the change in scores from baseline to follow‐up take into account baseline variability, we preferentially report those pooled results here. We also include pooled analyses of follow‐up values, both combining all forms within a domain, but also within individual instruments. We use these latter data to show consistency across results within domains. In general, when we observed a significant effect, it was usually at 12 weeks or at only one follow‐up period, although there were fewer studies at later time points. When we found heterogeneity, we investigated subgroups by cancer type or intensity of the exercise intervention and usually found similar estimates of treatment as within the entire group. Although all studies showed a relatively high risk of bias, we conducted a sensitivity analysis of studies where the allocation concealment scored as low risk of bias versus unclear or with a high risk of bias. We did not complete subgroup analyses when there was only one trial in a subgroup. We combined data using a WMD and a random‐effects model when trials measured HRQoL or HRQoL domains using either the same measurement method or scale to generate continuous data. We used an SMD analysis and random‐effects model to combine data from different instruments measuring the same domain.
For detailed information on HRQoL and HRQoL domain outcomes, number of trials reporting the outcomes, number of participants on whom the outcomes were reported, statistical methods used for analysis, and effect estimates see the Data and analyses table.
Overall health‐related quality of life
Change in HRQoL from baseline following an exercise intervention showed a significant improvement compared with control in 826 trial participants at 12 weeks (SMD 0.48; 95% CI 0.16 to 0.81); no difference at follow‐up between 3 and 6 months in 181 participants (SMD 0.14; 95% CI ‐0.38 to 0.66); and improvement at 6 months in 115 participants (SMD 0.46; 95% CI 0.09 to 0.84) (Analysis 1.1). At 12 weeks' follow‐up, subgroups by cancer type breast (SMD 0.57; 95% CI, 0.20 to 0.95) versus all other (SMD 0.27; 95% CI ‐0.00 to 0.55) showed similar results. There appeared to be an effect if the exercise was moderate to vigorous as defined by the author (SMD 0.29; 95% CI ‐0.00 to 0.58) but not if the exercise had been defined by the author as mild to moderate (SMD 0.46; 95% CI ‐0.62 to 1.53). The effect of exercise was still significant when we excluded studies that included participants who were still undergoing treatment (SMD 0.51; 95% CI 0.10 to 0.92). There were too few studies at longer follow‐up times to complete subgroup analyses.
All studies showed a relatively high risk of bias, so we conducted a sensitivity analysis of studies where the allocation concealment scored as low risk of bias versus unclear or with a high risk of bias. We found that the effect of exercise on the change from baseline to 12 weeks' follow‐up remained significant (SMD 0.49; 95% CI 0.08 to 0.90), with no change to the results found at 6 months' follow‐up (SMD 0.46; 95% CI 0.09 to 0.84).
Because there was significant clinical and statistical heterogeneity when combining all studies in an SMD model, we also examined the treatment effect by individual HRQoL instrument. The most commonly used instruments included those in the FACT series; including FACT‐An, FACT‐B, FACT‐C, and FACIT; and the QLQ‐C30. A significant change in the HRQoL score from baseline to 12 weeks compared with change in the control group was seen at 12 weeks' follow‐up with the FACT‐An (MD 7.10; 95% CI 1.50 to 12.71) but not with the FACT‐B (MD 9.29; 95% CI ‐3.73 to 22.30); FACT‐G (MD 4.94; 95% CI ‐0.08 to 9.95), FACIT (MD 6.80; 95% CI ‐9.51 to 23.10), or QLQ‐C30 (MD 15.66; 95% CI ‐7.78 to 39.09). However, in most casesonly a few studies were included in the analysis for each instrument. Similar results were seen at longer follow‐up periods. No investigator reported change in HRQoL score from baseline to 12 weeks' follow‐up using the FACT‐C instrument.
We found similar results when we looked at the follow‐up values reported rather than the differences between baseline and follow‐up (Analysis 1.2). Again, we found a significant effect at 12 weeks (SMD 0.49; 95% CI 0.24 to 0.74), but not at longer follow‐up periods (between 12 weeks and 6 months: SMD 0.11; 95% CI ‐0.10 to 0.32; 6 months: SMD 0.25; 95% CI ‐0.12 to 0.62). Subgroup analyses at 12 weeks' follow‐up showed a significant effect for both breast (SMD 0.53; 95% CI 0.17 to 0.89) and other types of cancer (SMD 0.43; 95% CI 0.08 to 0.79), and for studies in which authors reported that the exercise was moderate to vigorous (SMD 0.34; 95% CI 0.10 to 0.58) but not when authors reported that the exercise was mild or moderate (SMD 0.44; 95% CI ‐0.02 to 0.89). The effect of exercise was still significant when we excluded studies that included participants who were still undergoing treatment (SMD 0.56; 95% CI 0.26 to 0.87). Looking at the treatment effect by the individual instrument administered, we found significant effects with the FACT‐C (MD 14.00; 95% CI 2.59 to 25.41) and QLQ‐C30 (MD 16.41; 95% CI 1.89 to 30.93), but not for the FACT‐An (MD 4.25; 95% CI ‐3.28 to 11.78), FACT‐B (MD 9.82; 95% CI ‐0.76 to 20.40), FACT‐G (MD 5.90; 95% CI ‐0.36 to 12.16), or FACIT (MD ‐2.60; 95% CI ‐21.19 to 15.99). Again, few studies contributed to each analysis neither were there sufficient studies to complete subgroup analyses or look at longer times of follow‐up. Limiting the analyses to studies with a low risk of bias for allocation concealment did not change the results at 12 weeks (SMD 0.39; 95% CI 0.09 to 0.70) or longer follow‐up time points.
Two trials for which we were unable to extract data also reported on HRQoL (Heim 2007; Oh 2008). These studies reported that exercise resulted in an increase in HRQoL, although the trial by Heim 2007 also showed an increase in HRQoL in the control group, while that by Oh 2008 observed no change in the control group.
Cancer‐specific health‐related quality of life
Although there was a significant improvement in the exercise group compared with the control group from baseline to follow‐up between 12 weeks and 6 months in breast cancer concerns (SMD 0.99; 95% CI 0.41 to 1.57), we did not see an effect at either 12 weeks (SMD ‐0.13; 95% CI ‐0.41 to 0.14) or 6 months (SMD 0.14; 95% CI ‐0.24 to 0.51). Similar findings were obtained when we examined follow‐up values rather than the difference between baseline and follow‐up. In addition, concerns about lymphoma, colorectal cancer, or head and neck cancers did not demonstrate consistent significant effects when comparing the difference between baseline and follow‐up or follow‐up values.
Anxiety
There was a significant reduction in anxiety in the group exposed to exercise compared with the control group at 12 weeks (SMD ‐0.26; 95% CI ‐0.44 to ‐0.07), although this finding was not consistent at all follow‐up periods (between 12 weeks and 6 months: SMD 0.06; 95% CI ‐0.23 to 0.35; 6 months: SMD ‐0.15; 95% CI ‐0.61 to 0.30) (Analysis 3.1). Including only studies with a low risk of bias for allocation concealment resulted in this results becoming non‐significant (SMD ‐0.26; 95% CI ‐0.55 to 0.03), although only two studies contributed to this analysis. There was little statistical heterogeneity across studies, but looking at subgroups, we did not find a significant effect at 12 weeks' follow‐up for breast cancer only (SMD ‐0.15; 95% CI ‐0.61 to 0.30) or for vigorous to moderate exercise (SMD ‐0.26; 95% CI ‐0.55 to 0.03), although an effect on anxiety was observed when the exercise intervention was mild to moderate (SMD ‐0.26; 95% CI ‐0.02, ‐0.50). There were insufficient numbers of studies to compare subgroups at longer follow‐up time periods. In general, similar results were seen when we compared follow‐up values rather than looking at the change from baseline to follow‐up. Examination by individual instrument assessing anxiety showed a significant effect at 12 weeks' follow‐up only when the POMS anxiety and tension subscale was used to assess anxiety (MD ‐3.20; 95% CI ‐5.40 to ‐1.00).
In addition, Berglund 1994 reported a reduction in anxiety in both exercise and control group, but did not observe a difference between groups. We could not include this data in the meta‐analysis because the variances for the outcome measures were not reported.
Body image
No significant effect of exercise was observed on body image when comparing an exercise with a control intervention and looking at differences in scores between baseline and 12 weeks (SMD ‐1.09; 95% CI ‐2.29 to 0.11) or 6 months (SMD ‐0.05; 95% CI ‐0.51 to 0.40), although a significant effect was seen at follow‐up between 12 weeks and 6 months (SMD ‐0.74; 95% CI ‐1.30 to ‐0.18) and longer than 6 months (SMD ‐0.49; 95% CI ‐0.86 to ‐0.13) (Analysis 4.1). There was significant heterogeneity when we analyzed the results by including all types of instruments and so we evaluated change scores for each instrument separately. We found a significant effect when 'body image' was assessed using the Rosenberg Self‐Esteem scale at 12 weeks (MD 4.50; 95% CI 3.40 to 5.60), between 12 weeks and 6 months (MD 2.70; 95% CI 0.73 to 4.67), but not at 6 months (MD 0.20; 95% CI ‐1.50 to 1.90). No significant effect was observed for any other body image instrument.
One additional trial reported a positive change in body image for both the exercise and control groups, but did not report that there was a difference between treatment groups (Berglund 1994).
Cognitive function
We observed no significant effect of exercise on any measure of cognitive function, including subgroup analyses by type cancer or intensity of exercise. One small trial whose data were not extracted reported a significant effect on cognitive function with exercise without a corresponding effect in the control group (Oh 2008) (Analysis 5.1).
Depression
We observed no significant effect of exercise on depression in 455 participants looking at the change in score across instruments from baseline to follow‐up (Analysis 6.1). Because there was heterogeneity, we examined results by subgroup including type cancer (breast versus other) and observed a significant effect for other types of cancer (SMD ‐0.46, 95% CI ‐0.72, ‐0.19) but not for breast cancer survivors. No differences were noted when we looked at studies by intensity of exercise (vigorous to moderate versus mild to moderate) or excluding two studies that included patients still receiving therapy (Oh 2010; Targ 2002). In contrast, we did observe a significant effect of the exercise intervention at 12 weeks looking at follow‐up values (SMD ‐0.41; 95% CI ‐0.65 to ‐0.17) but not at longer follow‐up time points, and this effect was still significant after excluding studies that included individuals still undergoing treatment (SMD ‐0.72; 95% CI ‐1.03 to ‐0.41). We also looked at the effect of the exercise intervention for each instrument, and observed a significant treatment effect looking at change at 12 weeks in the CES‐D (MD ‐2.40; 95% CI ‐4.05 to ‐0.75), follow‐up values in the Beck Depression Inventory (BDI) at 12 weeks (MD ‐4.28; 95% CI ‐6.01 to ‐2.55), and change from baseline in a visual analog scale (VAS) from baseline to 12 weeks (MD ‐4.28; 95% CI ‐6.01 to ‐2.55). No significant effect of the exercise intervention was noted at later time points when comparing exercise with control intervention for change in score over time.
We were unable to extract data from three trials that reported on depression (Berglund 1994; Dodd 2010; Payne 2008). Dodd 2010 and Payne 2008 both reported that exercise had no effect on depression, and Berglund 1994 observed an improvement in depression in the exercise group with a worsening of depression in the control group.
Emotional well‐being
A meta‐analysis of the change in score from baseline to follow‐up and comparing exercise with control intervention showed a significant improvement in emotional well‐being at 12 weeks' follow‐up in 617 trial participants (SMD 0.33; 95% CI 0.05 to 0.61), but not at other follow‐up time points (Analysis 7.1). A subgroup of breast cancer survivors did not show a significant effect (SMD 0.30, 95% CI ‐0.15, 0.75) whereas a subgroup of survivors of other types of cancer did (SMD 0.43, 95% CI 0.16 to 0.69). There was no significant difference when we looked at subgroups by reported exercise intensity or after excluding studies that included participants still undergoing treatment. We also found a significant effect when we compared follow‐up scores between the exercise and control groups at 12 weeks (SMD 0.24; 95% CI 0.12 to 0.37).
Looking at each type of instrument separately, we found a significant difference between the exercise and the control interventions in change in the POMS total mood disturbance score from baseline to 12 weeks' follow‐up (MD ‐8.08; 95% CI ‐15.03 to ‐1.12). There was also significant differences in change score using the CARES‐SF instrument and the Lee Psychosocial scale, although these latter instruments were only used in one trial each.
One trial without extractable data reported no change over time in emotional well‐being in either the exercise or control group (Oh 2008).
Fatigue
We observed a significant effect of exercise on decrease in fatigue scores in cancer survivors at follow‐up of 12 weeks (SMD ‐0.82; 95% CI ‐1.50 to ‐0.14) and between 12 weeks and 6 months (SMD ‐0.42; 95% CI ‐0.83 to ‐0.02), but not at 6 months or longer (Analysis 8.1). We also observed no treatment difference whether within a subgroup of breast cancer survivors (SMD ‐0.28, 95% CI ‐0.77, 0.20) or survivors of other types of cancer (‐1.47, 95% CI ‐3.12, 0.19), or whether the exercise intervention was reported as moderate to vigorous (SMD ‐1.35, 95% CI ‐3.08 to 0.38) or mild to moderate (SMD ‐0.51, 95% CI ‐1.27 to 0.25). The effect of exercise was not significant when we excluded studies with participants undergoing treatment (SMD ‐0.24; 95% CI ‐0.69 to 0.22). Including only change scores for individual instruments showed a significant improvement in fatigue score change for the FACT‐F subscale at 12 weeks' follow‐up (MD 4.33; 95% CI 2.43 to 6.22). In single studies, an effect of the exercise intervention on fatigue was observed in change from baseline in the Schwartz Cancer Fatigue scale (SCFS) (MD ‐2.20; 95% CI ‐4.32 to ‐0.08) or a VAS scale (MD ‐13.14; 95% CI ‐23.32 to ‐2.96) at 12 weeks' follow‐up.
Among trials for which we could not extract data, three found no group differences in fatigue (Dodd 2010; Oh 2008; Payne 2008), while one reported an initial improvement in both exercise and control groups with the exercise group improving slightly more over time, and the control group becoming worse (Heim 2007).
General health perspective
We observed no significant effect of exercise on any reported measure of general health (Analysis 9.1). Similarly, Berglund 1994 reported no difference in general health perspective between groups.
Pain
Few trials reported on pain or change in pain related to the exercise intervention. No significant effect was obtained when pooling trials that did report change in pain over time when looking at change in reports from baseline to follow‐up; however, only one trial reported pain in this way (Analysis 10.1). Looking at follow‐up scores in 289 trial participants, a significant reduction in pain was observed at 12 weeks (SMD ‐0.29; 95% CI ‐0.55 to ‐0.04) but not at longer follow‐up periods. Two trials for which we could not extract data also reported on pain (Berglund 1994; Dodd 2010). In the trial by Berglund 1994, no change in pain score was observed immediately after treatment, although it was observed that the control group experienced more pain at later time points. Dodd 2010 observed a reduction in pain in both exercise and control groups, but no difference between groups in the level of pain.
Physical functioning
We did not observe any change in physical functioning at any time point looking either at change from baseline to follow‐up or at follow‐up values (Analysis 11.1). It was not possible to compare by intensity of exercise because of the limited number of studies. However, looking at individual instruments, a significant effect was observed in differences in scores from baseline to 12 weeks in the QLQ‐C30 (MD 6.23; 95% CI 1.74 to 10.72), to 6 months in a single trial using the CARES‐SF (MD ‐3.30; 95% CI ‐5.54 to ‐1.06), and in two trials looking at follow‐up values of the physical condition subscale of the BES (MD 4.41; 95% CI 0.57 to 8.25).
One trial without extractable data reported improvement in physical functioning in both groups (Heim 2007), while another reported no change in either group (Oh 2008).
Role function
We observed no significant effect of exercise on any reported measure of role function (Analysis 12.1). Similar results were reported by Oh 2008 who found no change in role function in either the exercise or control group.
Sexuality
A positive effect of the exercise intervention compared with the control intervention was observed at 6 months (SMD 0.40; 95% CI 0.11 to 0.68) (Analysis 13.1). No trials reported a change in scores at earlier time points. In one trial without extractable data, a reduction in sexual problems was observed for both exercise and control groups but no difference between groups was noted (Berglund 1994).
Sleep disturbance
We observed no significant effect of exercise on any reported measure of sleep disturbance when we looked at the change from baseline to follow‐up scores, but did see a significant effect showing improvement when comparing follow‐up values by comparison group at 12 weeks (SMD ‐0.46; 95% CI ‐0.72 to ‐0.20), but not at longer follow‐up time points (Analysis 14.1). In addition, we observed an improvement in sleep disturbance when follow‐up values were reported using the QLQ‐C30 sleep disturbance subscale at 12 weeks (MD ‐3.11; 95% CI ‐4.66 to ‐1.57). Three additional trials reported on sleep disturbances with two not observing any treatment effect on sleep disturbance (Dodd 2010; Oh 2008), but one reporting a large significant effect of exercise on sleep that was not present in the control group (Payne 2008).
Social functioning
Pooling results of trials evaluating change from baseline to follow‐up in HRQoL instruments assessing social functioning showed significant improvement following an exercise intervention compared with a control intervention in 386 trial participants at 12 weeks (SMD 0.45; 95% CI 0.02 to 0.87) and in 110 participants at 6 months' follow‐up (SMD 0.49; 95% CI 0.11 to 0.87), but this effect was not found at other follow‐up periods (Analysis 15.1). A positive treatment effect was still present after excluding results from two studies that included trial participants still receiving treatment (Oh 2010; Targ 2002). At 12 weeks' follow‐up, when comparing follow‐up scores between the exercise and control groups, a significant effect was seen within the subgroup of breast cancer survivors (SMD 0.42; 95% CI 0.20, 0.64). No treatment effect was observed when comparing change or follow‐up scores as assessed in subscales of individual instruments.
One small trial whose data were not extracted reported a significant effect on social functioning with exercise without a corresponding effect in the control group (Oh 2008).
Spirituality
Only one trial reported change in scores from baseline to follow‐up in the domain of spirituality and did not find a significant difference (Analysis 16.1). We also observed no treatment effect of exercise when we looked at follow‐up scores.
Discussion
Summary of main results
We included 40 trials with a total of 3694 participants randomized to the exercise intervention (n = 1927) or the comparison (n = 1764) groups. Participants enrolled in the trials had various cancer diagnoses including breast, colorectal, head and neck, and other. Thirty trials were conducted among participants who had completed active treatment for their primary or recurrent cancer and 10 trials included participants both during and post cancer treatment. Mode of the exercise intervention differed across trials and included strength training, resistance training, walking, cycling, yoga, Qigong, or Tai Chi. HRQoL and its domains were measured using a wide range of measures.
The results suggest that exercise interventions compared with control interventions have a positive impact on HRQoL and certain HRQoL domains. Exercise interventions resulted in improvement in: global HRQoL at 12 weeks' (SMD 0.48; 95% CI 0.16 to 0.81) and 6 months' (SMD 0.46; 95% CI 0.09 to 0.84) follow‐up, breast cancer concerns between 12 weeks' and 6 months' follow‐up (SMD 0.99; 95% CI 0.41 to 1.57), body image/self‐esteem when assessed using the Rosenberg Self‐Esteem scale at 12 weeks' (MD 4.50; 95% CI 3.40 to 5.60) and between 12 weeks' and 6 months (MD 2.70; 95% CI 0.73 to 4.67) follow‐up, emotional well‐being at 12 weeks' follow‐up (SMD 0.33; 95% CI 0.05 to 0.61), sexuality at 6 months' follow‐up (SMD 0.40; 95% CI 0.11 to 0.68), sleep disturbance when comparing follow‐up values by comparison group at 12 weeks' follow‐up (SMD ‐0.46; 95% CI ‐0.72 to ‐0.20), and social functioning at 12 weeks (SMD 0.45; 95% CI 0.02 to 0.87) and 6 months' follow‐up (SMD 0.49; 95% CI 0.11 to 0.87).
Further, exercise interventions resulted in decrease in anxiety at 12 weeks' follow‐up (SMD ‐0.26; 95% CI ‐0.07 to ‐0.44), fatigue at 12 weeks' follow‐up (SMD ‐0.82; 95% CI ‐1.50 to ‐0.14) and between 12 weeks' and 6 months' follow‐up (SMD ‐0.42; 95% CI ‐0.02 to ‐0.83), and pain at 12 weeks' follow‐up (MD ‐7.06; 95% CI ‐13.91 to ‐0.21) when comparing follow‐up values by comparison group.
There were positive trends and impact of exercise intervention for depression and body image (when analyzing combined instruments); however, because only a few studies measured these outcomes, the robustness of findings is uncertain. We observed no effect of the exercise interventions on HRQoL domains of cognitive function, physical functioning, general health perspective, role function, and spirituality.
The positive results must be interpreted with caution owing to the heterogeneity of exercise programs tested and measures used to assess HRQoL and HRQoL domains, and the risk of bias in many trials. Further research is required to investigate how to sustain positive effects of exercise over time and to determine essential attributes of exercise (mode, intensity, frequency, duration, timing) by cancer type and cancer treatment for optimal effects on HRQoL and its domains.
The Table 1 provides a summary of the main results with associated risks.
Overall completeness and applicability of evidence
This systematic review included 40 trials, 38 of which were RCTs and two were CCTs. These trials allocated 3694 participants to either the exercise or comparison groups. Participants enrolled in the trials had various cancer diagnoses including breast, colorectal, head and neck, and other. All trials included participants who had completed active cancer treatment; however, some trials also included participants who were currently undergoing treatment. Exercise interventions tested in the trials varied greatly and included strength training, resistance training, yoga, walking, cycling, Tai Chi, and Qigong. HRQoL and HRQoL domains were assessed using a wide range of measures. The Characteristics of included studies table provides detailed information on the trial attributes.
The review draws upon worldwide studies. The comprehensive search strategy obtained information from several electronic databases, citations through Web of Science and Scopus, PubMed's related article feature, and several websites; and review of reference list of other reviews in the field and reference list of all included trials. There were no language or date restrictions in the search strategy. See Search methods for identification of studies for details.
In terms of applicability of evidence, the majority of trials were conducted among women who were breast cancer survivors. Further, many trials did not provide socio‐demographic information of participants (race/ethnicity, education level, employment status, annual income, social and health benefits) that would enable comparisons between trials and assess generalizability of findings. Based on socio‐demographic data presented in trials, participants were generally white people and with more than high school level education. These characteristics would limit applicability of evidence to a broader cancer survivor population. Further, the majority of trials measured effects of the intervention at the end of the intervention. Thus it is unclear about how sustainable the positive effects of the intervention would be.
The exercise programs varied greatly in their mode, frequency, duration, and intensity. These variations and the lack of understanding about important elements of exercise programs (mode, frequency, duration of sessions and programs, and intensity) for optimal effects on HRQoL and HRQoL domains would preclude informed decision‐making in clinical settings and limit applicability of findings.
The HRQoL and HRQoL domains were assessed using a diverse range of instruments with varying psychometric properties. Further, reliance on self‐report measures, without triangulation of findings with objectively measured outcomes, can open interpretation of findings to bias.
Because of the variability across interventions, outcome measures, and follow‐up times, we looked for treatment effects that were consistent across time and across the different instruments used to assess a specific domain. Although we found some significant effects, they tended to be in subgroups or only at one time point, undermining our confidence in the observed effect. When we observed a significant effect, it was usually at the 12 weeks' follow‐up period, which typically equates to the end of the intervention. We frequently found that a positive effect at 12 weeks was not observed at later time periods (i.e. improvement in global HRQoL, reduction in anxiety, etc.), but it is unclear if this finding is because of lack of effect of the exercise intervention at later times, or because there were so few studies measuring outcomes at longer times of follow‐up.
The trials provided no data on cost or cost‐effectiveness of exercise program on HRQoL and HRQoL domains among cancer survivors.
Quality of the evidence
Results of the review need to be interpreted with caution owing to the risk of bias. All the trials reviewed were at high risk for performance bias because blinding of participants is not possible in exercise intervention unless more rigorously controlled comparative designs are utilized to test the effects of exercise interventions. Performance bias becomes accentuated in trials where participants are asked to provide subjective assessments of outcomes such as HRQoL and HRQoL domains. In addition, the majority of trials were at high risk for detection bias as the outcome assessors were not blinded, were at high risk for attrition bias owing to inadequate handling of incomplete data, and were at high or unclear risk for selection bias owing to inadequate concealment of allocation to the intervention.
The Table 1 provides a summary on the quality of evidence.
Potential biases in the review process
The strength of this review is the comprehensive search strategy that included a search of 11 electronic databases, citations through Web of Science and Scopus, PubMed's related article feature, and several websites; and, review of reference lists of other reviews in the field and reference lists of all included trials. The comprehensive search strategy was designed and implemented to ensure the identification and retrieval of the maximum number of available published trials and trials in the gray literature. The search strategy also ensured no language restrictions. Trials published in non‐English language were assessed for eligibility and, if eligible, had data abstracted by native speakers of the language in which the trial was published.
In spite of such a comprehensive search, it is still possible that this review may have a publication bias. We prepared two funnel plots to assess publication bias for change in global QoL from baseline to follow‐up (Figure 4) and for follow‐up values for global QoL (Figure 5). Visually both figures showed some slight asymmetry indicating that there is some publication bias in this area of research. We did not complete funnel plots for the other outcomes, because too few studies contributed to the outcome measures. It is possible this review missed some potentially eligible trials in the gray literature, but given the trial results, it is unclear whether the addition of trials only in the gray literature would have a significant impact on results of the review if, as been suggested, trials reported only in the gray literature includes trials have small sample sizes and inconclusive results (McAuley 2000). Further, we corresponded with and requested additional data from 11 trial authors (Daley 2007a; Dodd 2010; Heim 2007; Herrero 2006; Mehnert 2011; Oh 2008; Payne 2008; Penttinen 2011; Rogers 2009; Tang 2010; Thorsen 2005), and six of these trials authors were able to provide additional data. We were unable to find the correct corresponding address for one author (Berglund 1994). Obtaining additional data allowed inclusion of these trials in the quantitative meta‐analyses, which made the analyses and findings more robust and complete.
Agreements and disagreements with other studies or reviews
Some systematic reviews have evaluated the effectiveness of exercise interventions on HRQoL or HRQoL domains (Craft 2011; Cramp 2008; Cramp 2010; Duijts 2011; Ferrer 2011; Speck 2010a). All of these reviews included people both during and after active cancer and only one review (Speck 2010a) presented findings by treatment status. Cramp 2008 examined the effect of exercise on cancer‐related fatigue and reported that overall exercise was beneficial in the management of cancer‐related fatigue and that exercise was beneficial in the management of cancer‐related fatigue among breast cancer survivors, a finding that is similar to what we report here. In another review, Cramp 2010, based on a review of the effect of resistance (strength) training on HRQoL, reported no significant benefit of resistance training on global HRQoL and on anxiety and depression. In contrast we found an effect of exercise on global HRQoL, but not on depression. Two of the four trials reviewed by Cramp 2010 reported a significant improvement in fatigue. Duijts 2011 evaluated the effects of exercise (and behavioral) interventions on fatigue, depression, body image, stress, and HRQoL in breast cancer survivors both during and after cancer treatment. Physical exercise interventions had moderate statistically significant effects for fatigue, depression, body image, and HRQoL, but the effect on anxiety, although in the expected direction, did not reach statistical significance. Again, these findings are generally consistent with those presented here although we did not find an effect on depression. Ferrer 2011, based on a meta‐analysis of the efficacy of exercise interventions in improving HRQoL in cancer survivors during and after cancer treatment, documented increased HRQoL scores but the effect was more pronounced for interventions that had intense aerobic exercises and that targeted women. Speck 2010a evaluated the effects of physical activity across the cancer control continuum (including during and after cancer treatment). Physical activity interventions among people who had completed active treatment for their cancer had moderate effects on fatigue‐ and breast‐cancer‐specific concerns and had small to moderate effects on overall HRQoL. Craft 2011 reviewed the effects of exercise on depression and documented that exercise had a modest positive effect on depressive symptoms. Our review did not find a consistent effect on depression in contrast to these reviews, but our findings are congruent with respect to global HRQoL and fatigue observed by other reviewers. These differences may be owing to differences in the trial population in that our review only included individuals who had completed active cancer treatment.
Authors' conclusions
Implications for practice.
This systematic review finds that exercise interventions may have beneficial effects on overall HRQoL and HRQoL domains including cancer‐specific concerns (e.g. breast cancer), body image/self‐esteem, emotional well‐being, sexuality, sleep disturbance, social functioning, anxiety, fatigue, and pain at varying follow‐up periods among cancer survivors who are beyond active treatment for their primary or recurrent cancer. Exercise programs could be considered as an integral component for the management of HRQoL among cancer survivors.
The positive results must be interpreted cautiously owing to the heterogeneity of mode of exercise programs, measures used to assess HRQoL and HRQoL domains, and the risk of bias in many trials. Further, a lack of understanding about important elements of exercise programs (mode, frequency, duration of sessions and programs, and intensity) for optimal effects on HRQoL and HRQoL domains would preclude informed decision making in clinical settings and limit practical applicability of findings.
No evidence of effect was found for HRQoL domains such as cognitive function, physical functioning, general health perspective, role function, and spirituality. The lack of evidence may be due to few trials assessing these outcomes, small number of participants in trials measuring these outcomes, and substantial heterogeneity between trials measuring these outcomes on the exercise programs implemented and measures used to assess the outcomes. Owing to these limitations, no conclusions can be drawn at this time regarding the effects of exercise interventions on these HRQoL domains.
From a practice perspective, it would be important to understand whether certain exercise attributes have more or less optimal effects on HRQoL and HRQoL domains among survivors of certain types of cancers. Further, it would be important to understand which mode of exercise program (strength; resistance; Tai Chi; yoga; and aerobic, anaerobic, or a combination) coupled with what levels of essential attributes (frequency of program, duration of program and each session) is optimal for which cancer type and cancer treatment.
Implications for research.
This systematic review and meta‐analysis of 40 trials on the effects of exercise on HRQoL and HRQoL domains for cancer survivors provides evidence that exercise interventions may have beneficial effects on overall HRQoL and HRQoL domains including cancer‐specific concerns (e.g. breast cancer), body image/self‐esteem, emotional well‐being, sexuality, sleep disturbance, social functioning, anxiety, fatigue, and pain at varying follow‐up periods among cancer survivors who are beyond active treatment for their primary or recurrent cancer. Further, findings of this review suggest that exercise interventions may have minimal or no effects on HRQoL domains such as cognitive function, physical functioning, general health perspective, role function, and spirituality among cancer survivors.
Further research is required to investigate whether the effect of an exercise intervention can be maintained beyond the active intervention period, and if so, how to sustain changes in exercise behaviors and positive effects of exercise on HRQoL and HRQoL domains. Empirical evidence is also needed to determine the optimal follow‐up period from end of the intervention. To further this understanding, rigorous RCTs could include qualitative research components in trials to benefit from the contextually rich insights gained from engaging participants about their experiences in exercise interventions.
More research is needed to determine essential attributes of exercise (mode, intensity, frequency, duration, timing) by cancer type and cancer treatment for optimal effects on HRQoL and its domains.
HRQoL and HRQoL domains are important measures of cancer survivorship. However, the heterogeneous range of measures used to assess HRQoL and HRQoL domains, make comparisons of findings between trials extremely difficult. Efforts such as the Patient‐Reported Outcomes Measurement Information System (PROMIS) may help address these issues (Cella 2010; National Cancer Institute 2012).
What's new
Date | Event | Description |
---|---|---|
12 May 2020 | Amended | The Editors are looking for contributors to update and maintain this Cochrane Review. Contact ruh‐tr.gnoc‐cochrane@nhs.net for further information. The searches have been updated to May 2019 and potentially relevant studies added to ‘Other references; Classification pending’. |
History
Protocol first published: Issue 1, 2009 Review first published: Issue 8, 2012
Acknowledgements
The authors would like to thank and acknowledge Clare Jess (Managing Editor) and Editorial Base of the Cochrane Gynecological Cancer Review Group for their help and editorial advice during the preparation of the review. Moreover, the authors would like to thank the peer reviewers and consumer reviewer for their invaluable feedback during the peer review process, and the authors of primary trials for additional information about their trials. This research was supported in part by the National Institute for Health Research (NIHR) Health Technology Assessment program. The views and opinions expressed therein are those of the authors and do not necessarily reflect those of the funding agency.
Appendices
Appendix 1. MEDLINE search strategy
[inception to June 2009; 419 hits] [January 2009 to September 2011; 205 hits]
exp exercise/
exercise tolerance/
exp exertion/
Pliability/
physical fitness/
"Physical Education and Training"/
exp physical endurance/
exercise therapy/
exercising.mp.
physical condition$.mp.
stamina.mp.
motor activity/
exercise test/
exp Sports/
tai chi.mp. or tai ji/
yoga/
muscle stretching exercises/
exp "range of motion, articular"/
pilates.mp.
qigong.mp.
chi kung.mp.
resistance training.mp.
mind body therap$.mp.
exp complementary therapies/
Bad Ragaz.mp.
Ai Chi.mp.
Halliwick.mp.
hippotherapy.mp.
Hydrotherapy/
balance exercise$.mp.
aquatic exercise$.mp.
1 or 2 or 3 or 4 or 5 or 6 or 7 or 8 or 9 or 10 or 11 or 12 or 13 or 14 or 15 or 16 or 17 or 18 or 19 or 20 or 21 or 22 or 23 or 24 or 25 or 26 or 27 or 28 or 29 or 30 or 31
"quality of life"/
exp health status/
"activities of daily living"/
life qualit$.mp.
exp self concept/
health level.mp.
level of health.mp.
wellness.mp.
well being.mp.
(activities of daily life or daily living activities).mp. [mp=title, original title, abstract, name of substance word, subject heading word]
functional ability.mp.
good health.mp.
healthiness.mp.
patient reported outcomes.mp.
social adjustment/
physical limitations.mp.
psychiatric status.mp.
pain measurement/
functional assessment.mp.
fact questionnaire.mp.
fact survey.mp.
qlc‐c30.mp.
facit.mp.
toi.mp.
(flic or sf‐36 or ces‐d or bdi or sta1 or bfi or hads or lasa or poms or qli or rsci or pais or bpi or msas or mos or ptgi or panas).mp.
sense of coherence.mp.
randomized.ab.
placebo.ab.
randomly.ab.
trial.ab.
randomized controlled trial.pt.
controlled clinical trial.pt.
survivors/
exp neoplasms/
cancer survivor$.mp.
cancer.mp.
post treatment.mp.
after treatment.mp.
35 or 33 or 53 or 48 or 42 or 46 or 44 or 55 or 50 or 39 or 57 or 36 or 40 or 51 or 58 or 41 or 47 or 52 or 38 or 34 or 56 or 49 or 37 or 45 or 43 or 54
67 or 66 or 68 or 65
59 or 60 or 63 or 64 or 61 or 62
random$.ab.
74 or 73
32 and 75 and 72
Appendix 2. CENTRAL search strategy
[inception to August 2009; 113 hits] [January 2009 to September 2011; 136 hits]
Searched via Ovid EBM Reviews
[mp = ti, ot, ab, tx, kw, ct, sh, hw]
exp exercise/
exercise tolerance/
exp exertion/
Pliability/
physical fitness/
"Physical Education and Training"/
exp physical endurance/
exercise therapy/
exercising.mp.
physical condition$.mp.
stamina.mp.
motor activity/
exercise test/
exp Sports/
tai chi.mp. or tai ji/
yoga/
muscle stretching exercises/
exp "range of motion, articular"/
pilates.mp.
qigong.mp.
chi kung.mp.
resistance training.mp.
mind body therap$.mp.
exp complementary therapies/
Bad Ragaz.mp.
Ai Chi.mp.
Halliwick.mp.
hippotherapy.mp.
Hydrotherapy/
balance exercise$.mp.
aquatic exercise$.mp.
1 or 2 or 3 or 4 or 5 or 6 or 7 or 8 or 9 or 10 or 11 or 12 or 13 or 14 or 15 or 16 or 17 or 18 or 19 or 20 or 21 or 22 or 23 or 24 or 25 or 26 or 27 or 28 or 29 or 30 or 31
"quality of life"/
exp health status/
"activities of daily living"/
life qualit$.mp.
exp self concept/
health level.mp.
level of health.mp.
wellness.mp.
well being.mp.
(activities of daily life or daily living activities).mp. [mp=title, original title, abstract, mesh headings, heading words, keyword]
functional ability.mp.
good health.mp.
healthiness.mp.
patient reported outcomes.mp.
social adjustment/
physical limitations.mp.
psychiatric status.mp.
pain measurement/
functional assessment.mp.
fact questionnaire.mp.
fact survey.mp.
qlc‐c30.mp.
facit.mp.
toi.mp.
(flic or sf‐36 or ces‐d or bdi or sta1 or bfi or hads or lasa or poms or qli or rsci or pais or bpi or msas or mos or ptgi or panas).mp.
sense of coherence.mp.
randomized.ab.
placebo.ab.
randomly.ab.
trial.ab.
randomized controlled trial.pt.
controlled clinical trial.pt.
survivors/
exp neoplasms/
cancer survivor$.mp.
cancer.mp.
post treatment.mp.
after treatment.mp.
35 or 33 or 53 or 48 or 42 or 46 or 44 or 55 or 50 or 39 or 57 or 36 or 40 or 51 or 58 or 41 or 47 or 52 or 38 or 34 or 56 or 49 or 37 or 45 or 43 or 54
67 or 66 or 68 or 65
59 or 60 or 63 or 64 or 61 or 62
random$.ab.
74 or 73
32 and 75 and 72 and 71
from 76 keep 1‐418
from 77 keep 1‐10
Physical Exertion/
32 or 79
80 and 75 and 72 and 71
Appendix 3. EMBASE search strategy
[inception to August 2009; 492 hits] [January 2009 to September 2011; 483 hits]
exp exercise/
exertion.mp.
pliability/
fitness/
(physical education and training).mp. [mp=title, abstract, subject headings, heading word, drug trade name, original title, device manufacturer, drug manufacturer name]
physical endurance.mp. or endurance/
kinesiotherapy/
exercising.mp.
"physical condition$".mp.
stamina.mp.
exp motor activity/
exp sports/
exercise test/
tai chi.mp.
tai ji.mp.
yoga/
stretching exercise/
"range of motion"/
pilates.mp.
qigong.mp.
chi kung.mp.
muscle strength/ or muscle training/ or resistance training.mp.
mind body therapy.mp.
alternative medicine/
bad ragaz.mp.
ai chi.mp.
halliwick.mp.
hippotherapy.mp.
hydrotherapy/
balance exercises.mp.
aquatic exercise/
1 or 2 or 3 or 4 or 5 or 6 or 7 or 8 or 9 or 10 or 11 or 12 or 13 or 14 or 15 or 16 or 17 or 18 or 19 or 20 or 21 or 22 or 23 or 24 or 25 or 26 or 27 or 28 or 29 or 30 or 31
"quality of life"/
exp health status/
daily life activity/
life qualit$.mp.
exp self concept/
health level.mp.
"level of health".mp.
wellbeing/
wellness.mp.
good health.mp.
functional ability.mp.
healthiness.mp.
"patient reported outcomes".mp.
social adaptation/
physical limitation$.mp.
psychiatric status.mp.
pain assessment/
functional assessment/
questionnaire/ or fact questionnaire.mp.
fact survey.mp.
health survey/
qlc‐c30.mp.
facit.mp.
toi.mp.
sense of coherence.mp.
(flic or sf‐36 or ces‐d or bdi or stal or bfi or hads or lasa or poms or qli or rsci or pais or bpi or msas or mos or ptgi or panas).mp. [mp=title, abstract, subject headings, heading word, drug trade name, original title, device manufacturer, drug manufacturer name]
35 or 33 or 53 or 48 or 42 or 46 or 44 or 55 or 50 or 39 or 57 or 36 or 40 or 51 or 58 or 41 or 47 or 52 or 38 or 34 or 56 or 49 or 37 or 45 or 43 or 54
exp neoplasm/
survivor/
cancer survivor/
cancer.mp.
60 or 63 or 61 or 62
59 and 32 and 64
("randomized controlled trial" or "clinical trial" or placebo or trial or random$).mp. [mp=title, abstract, subject headings, heading word, drug trade name, original title, device manufacturer, drug manufacturer name]
66 and 65
limit 67 to article
Appendix 4. CINAHL search strategy
[inception to July 2009; 101 hits] [January 2009 to September 2011; 63 hits]
Search ID# | Search Terms |
S68 | S66 and S67 |
S67 | (random* or placebo or trial) |
S66 | S33 and S62 and S65 |
S65 | S63 or S64 |
S64 | (MH "Cancer Survivors") OR (MH "Survivors") |
S63 | (MH "Neoplasms+") |
S62 | S34 or S35 or S36 or S37 or S38 or S39 or S40 or S41 or S42 or S43 or S44 or S45 or S46 or S47 or S48 or S49 or S50 or S51 or S52 or S53 or S54 or S55 or S58 or S59 or S60 or S61 |
S61 | "sense of coherence" |
S60 | (flic or sf‐37 or ces‐d of bdi or stal or bfi or hads or lasa or poms or qli or rsci or pals or bpi or msas or mos or ptgi or panas) |
S59 | toi |
S58 | facit |
S57 | qlc‐c30 |
S56 | "fact survey" |
S55 | fact questionnaire |
S54 | (MH "Questionnaires") |
S53 | (MH "Functional Assessment") |
S52 | (MH "Pain Measurement") |
S51 | (MH "Mental Status") |
S50 | "psychiatric status" |
S49 | "physical limitations" |
S48 | (MH "Social Adjustment") |
S47 | "patient reported outcomes" |
S46 | healthiness |
S45 | good health |
S44 | (MH "Functional Status") |
S43 | (MH "Activities of Daily Living") OR "daily activities" |
S42 | (MH "Psychological Well‐Being") |
S41 | (MH "Wellness") |
S40 | level of health |
S39 | "health level" |
S38 | (MH "Self Concept") |
S37 | "life quality" |
S36 | (MH "Activities of Daily Living") |
S35 | (MH "Health Status") |
S34 | (MH "Quality of Life") |
S33 | S1 or S2 or S3 or S4 or S5 or S6 or S7 or S8 or S9 or S10 or S11 or S12 or S13 or S14 or S15 or S16 or S17 or S18 or S19 or S20 or S21 or S22 or S23 or S24 or S25 or S26 or S27 or S28 or S29 or S30 or S31 or S32 |
S32 | (MH "Aquatic Exercises") |
S31 | (MH "Swimming") |
S30 | "balance exercise" |
S29 | (MH "Hydrotherapy") |
S28 | "hippotherapy" OR (MH "Horseback Riding") |
S27 | "bad ragaz" |
S26 | (MH "Alternative Therapies+") |
S25 | (MH "Mind Body Techniques") OR "mind body therapy" |
S24 | (MH "Muscle Strengthening") OR "resistance training" |
S23 | "chi kung" |
S22 | (MH "Qigong") |
S21 | (MH "Pilates") |
S20 | (MH "Range of Motion") |
S19 | "muscle strengthening exercises" |
S18 | (MH "Yoga") |
S17 | tai ji |
S16 | (MH "Tai Chi") |
S15 | (MH "Exercise Test") |
S14 | (MH "Sports+") |
S13 | (MH "Motor Activity") |
S12 | "motor processes" |
S11 | "stamina" |
S10 | "physical condition*" |
S9 | "exercising" |
S8 | (MH "Therapeutic Exercise") |
S7 | (MH "Physical Endurance") |
S6 | (MH "Physical Education and Training+") |
S5 | (MH "Physical Fitness+") |
S4 | (MH "Pliability") |
S3 | (MH "Exertion") |
S2 | (MH "Exercise Tolerance") |
S1 | (MH "Exercise+") |
Appendix 5. PsycINFO search strategy
[inception to July 2009; 120 hits] [January 2009 to September 2011; 45 hits]
exp exercise/
exercise tolerance.mp.
exertion.mp.
pliability.mp.
exp physical fitness/
(physical education and training).mp. [mp=title, abstract, heading word, table of contents, key concepts]
exp Physical Endurance/
exercise therapy.mp.
exercising.mp.
physical condition$.mp.
stamina.mp.
Motor Processes/
motor activity.mp.
exp Sports/
exercise test.mp.
(tai chi or tai ji).mp. [mp=title, abstract, heading word, table of contents, key concepts]
exp Yoga/
muscle strengthening exercises.mp.
"Range of Motion"/
pilates.mp.
qigong.mp.
chi kung.mp.
resistance training.mp.
mind body therapy.mp.
exp Alternative Medicine/
bad ragaz.mp.
ai chi.mp.
halliwick.mp.
hippotherapy.mp.
hydrotherapy.mp.
balance exercise$.mp.
Swimming/ or aquatic exercise.mp.
1 or 2 or 3 or 4 or 5 or 6 or 7 or 8 or 9 or 10 or 11 or 12 or 13 or 14 or 15 or 16 or 17 or 18 or 19 or 20 or 21 or 22 or 23 or 24 or 25 or 26 or 27 or 28 or 29 or 30 or 31 or 32
exp "quality of life"/
health status.mp.
exp "Activities of Daily Living"/
life quality.mp.
exp Self Concept/
health level.mp.
level of health.mp.
wellness.mp. or exp Health/
Well Being/
Daily Activities/ or activities of daily life.mp.
functional ability.mp.
good health.mp.
healthiness.mp.
patient reported outcomes.mp.
exp Social Adjustment/
physical limitations.mp.
psychiatric status.mp.
exp Pain Measurement/
functional assessment.mp.
Questionnaires/ or fact questionnaire.mp.
fact survey.mp.
qlc‐c30.mp.
facit.mp.
toi.mp.
(flic or sf‐36 or ces‐d or bdi or stal or bfi or hads or lasa or poms or qli or rsci or pais or bpi or msas or mos or ptgi or panas).mp. [mp=title, abstract, heading word, table of contents, key concepts] (8685)
"Sense of Coherence"/
35 or 53 or 48 or 42 or 46 or 44 or 55 or 50 or 39 or 57 or 36 or 40 or 51 or 58 or 41 or 47 or 59 or 52 or 38 or 34 or 56 or 49 or 37 or 45 or 43 or 54
exp Neoplasms/
Survivors/
cancer survivors.mp.
63 or 61 or 62
60 and 33 and 64
66 limit 65 to (("0400 empirical study" or "0830 systematic review" or 1200 meta analysis or "2000 treatment outcome/randomized clinical trial") and "0100 journal")
randomized controlled trial.mp.
clincal trial.mp.
random$.ab.
placebo.ab.
trial.ab.
69 or 67 or 71 or 70 or 68
72 and 65
73 or 66
Appendix 6. Other search strategies
LILACS search strategy [inception to August 2009; 15 hits] [January 2009 to September 2011; 0 hits]
(Neoplasms OR cancer) AND exercise AND "quality of life"
OT Seeker search strategy [inception to August 2009; 45 hits] [January 2009 to October 2011; 13 hits]
Database Note returned with search: A precise search did not find any articles. A less precise search has been done and the results are shown below.
(exercise OR exertion OR pliability OR "physical fitness" OR "physical endurance" OR "exercise therapy" OR "motor activity" OR sports) AND cancer AND "quality of life" AND survivor*
Limits: Method: clinical trial and Diagnosis/Subdiscipline: Oncology/palliative care
PEDro search strategy [inception to August 2009; 67 hits] [January 2009 to September 2011; 15 hits]
exercise AND cancer AND "quality of life" AND survivor*
SIGLE search strategy (now OpenGrey) [inception to November 2009; 0 hits] [January 2009 to October 2011; 4 hits]
exercise AND (cancer OR neoplasms) AND "quality of life AND (survivors OR post treatment)
Sociological Abstracts (SocINDEX) search strategy [inception to November 2009; 29 hits] [January 2009 to September 2011; 10 hits]
Search ID# | Search Terms |
S73 | S68 and S72 |
S72 | survivors |
S68 | S66 and S67 |
S67 | (random* or placebo or trial) |
S66 | S33 and S62 and S65 |
S65 | S63 or S64 |
S64 | (MH "Cancer Survivors") OR (MH "Survivors") |
S63 | (MH "Neoplasms+") |
S62 | S34 or S35 or S36 or S37 or S38 or S39 or S40 or S41 or S42 or S43 or S44 or S45 or S46 or S47 or S48 or S49 or S50 or S51 or S52 or S53 or S54 or S55 or S58 or S59 or S60 or S61 |
S61 | "sense of coherence" |
S60 | (flic or sf‐37 or ces‐d of bdi or stal or bfi or hads or lasa or poms or qli or rsci or pals or bpi or msas or mos or ptgi or panas) |
S59 | toi |
S58 | facit |
S57 | qlc‐c30 |
S56 | "fact survey" |
S55 | fact questionnaire |
S54 | (MH "Questionnaires") |
S53 | (MH "Functional Assessment") |
S52 | (MH "Pain Measurement") |
S51 | (MH "Mental Status") |
S50 | "psychiatric status" |
S49 | "physical limitations" |
S48 | (MH "Social Adjustment") |
S47 | "patient reported outcomes" |
S46 | healthiness |
S45 | good health |
S44 | (MH "Functional Status") |
S43 | (MH "Activities of Daily Living") OR "daily activities" |
S42 | (MH "Psychological Well‐Being") |
S41 | (MH "Wellness") |
S40 | level of health |
S39 | "health level" |
S38 | (MH "Self Concept") |
S37 | "life quality" |
S36 | (MH "Activities of Daily Living") |
S35 | (MH "Health Status") |
S34 | (MH "Quality of Life") |
S33 | S1 or S2 or S3 or S4 or S5 or S6 or S7 or S8 or S9 or S10 or S11 or S12 or S13 or S14 or S15 or S16 or S17 or S18 or S19 or S20 or S21 or S22 or S23 or S24 or S25 or S26 or S27 or S28 or S29 or S30 or S31 or S32 |
S32 | (MH "Aquatic Exercises") |
S31 | (MH "Swimming") |
S30 | "balance exercise" |
S29 | (MH "Hydrotherapy") |
S28 | "hippotherapy" OR (MH "Horseback Riding") |
S27 | "bad ragaz" |
S26 | (MH "Alternative Therapies+") |
S25 | (MH "Mind Body Techniques") OR "mind body therapy" |
S24 | (MH "Muscle Strengthening") OR "resistance training" |
S23 | "chi kung" |
S22 | (MH "Qigong") |
S21 | (MH "Pilates") |
S20 | (MH "Range of Motion") |
S19 | "muscle strengthening exercises" |
S18 | (MH "Yoga") |
S17 | tai ji |
S16 | (MH "Tai Chi") |
S15 | (MH "Exercise Test") |
S14 | (MH "Sports+") |
S13 | (MH "Motor Activity") |
S12 | "motor processes" |
S11 | "stamina" |
S10 | "physical condition*" |
S9 | "exercising" |
S8 | (MH "Therapeutic Exercise") |
S7 | (MH "Physical Endurance") |
S6 | (MH "Physical Education and Training+") |
S5 | (MH "Physical Fitness+") |
S4 | (MH "Pliability") |
S3 | (MH "Exertion") |
S2 | (MH "Exercise Tolerance") |
S1 | (MH "Exercise+") |
SportDiscus search strategy [inception to August 2009; 31 hits] [January 2009 to September 2011; 28 hits]
Search ID# | Search Terms |
S73 | S33 and S58 and S71 and S72 |
S72 | S64 or S65 or S66 or S67 or S68 or S69 |
S71 | S59 or S60 or S61 or S62 or S63 or S70 |
S70 | random* |
S69 | after treatment |
S68 | post treatment |
S67 | cancer |
S66 | cancer survivor* |
S65 | neoplasms |
S64 | survivors |
S63 | controlled clinical trial |
S62 | randomized controlled trial |
S61 | trial |
S60 | placebo |
S59 | randomized |
S58 | S34 or S35 or S36 or S37 or S38 or S39 or S40 or S41 or S42 or S43 or S44 or S45 or S46 or S47 or S48 or S49 or S50 or S51 or S52 or S53 or S54 or S55 or S56 or S57 |
S57 | sense of coherence |
S56 | flic or sf‐36 or ces‐d or bdi or sta1 or bfi or hads or lasa or poms or qli or rsci or pais or bpi or msas or mos or ptgi or panas |
S55 | toi |
S54 | facit |
S53 | qlc‐c30 |
S52 | fact survey |
S51 | fact questionnaire |
S50 | functional assessment |
S49 | pain measurement |
S48 | psychiatric status |
S47 | physical limitations |
S46 | social adjustment |
S45 | patient reported outcomes |
S44 | healthiness |
S43 | good health |
S42 | functional ability |
S41 | activities of daily living OR daily living activities |
S40 | wellness |
S39 | level of health |
S38 | health level |
S37 | self concept |
S36 | life qualit* |
S35 | DE "ACTIVITIES of daily living" |
S34 | DE "QUALITY of life" OR DE "HEALTH status indicators" OR DE "LIFESTYLES" OR DE "WELL‐being" |
S33 | S1 or S2 or S3 or S4 or S5 or S6 or S7 or S8 or S9 or S10 or S11 or S12 or S13 or S14 or S15 or S16 or S17 or S18 or S19 or S20 or S21 or S22 or S23 or S24 or S25 or S26 or S27 or S28 or S29 or S30 or S31 or S32 |
S32 | DE aquatic exercises |
S31 | balance exercise* |
S30 | DE hydrotherapy |
S29 | hippotherapy |
S28 | halliwick |
S27 | ai chi |
S26 | bad ragaz |
S25 | complementary therap* |
S24 | mind body therap* |
S23 | resistance training |
S22 | DE "WEIGHT training" OR DE "BENCH press" OR DE "DEAD lift (Weight lifting)" OR DE "POWERLIFTING" OR DE "SQUAT (Weight lifting)" OR DE "STONE lifting" OR DE "WEIGHT lifting" |
S21 | chi kung |
S20 | qigong |
S19 | DE pilates |
S18 | DE "JOINTS ‐‐ Range of motion" |
S17 | muscle stretching exercise* |
S16 | DE yoga |
S15 | DE tai chi |
S14 | DE sports |
S13 | exercise test |
S12 | motor activity |
S11 | stamina |
S10 | physical condition* |
S9 | exercising |
S8 | DE "Exercise Therapy" |
S7 | physical endurance |
S6 | DE "physical education & training" |
S5 | DE "physical fitness" |
S4 | pliability |
S3 | exertion |
S2 | exercise tolerance |
S1 | DE Exercise |
Data and analyses
Comparison 1. Health‐related quality of life.
Outcome or subgroup title | No. of studies | No. of participants | Statistical method | Effect size |
---|---|---|---|---|
1.1 Overall quality of life change score | 15 | Std. Mean Difference (IV, Random, 95% CI) | Subtotals only | |
1.1.1 Up to 12 weeks' follow‐up | 11 | 826 | Std. Mean Difference (IV, Random, 95% CI) | 0.48 [0.16, 0.81] |
1.1.2 More than 12 weeks' to less than 6 months' follow‐up | 3 | 181 | Std. Mean Difference (IV, Random, 95% CI) | 0.14 [‐0.38, 0.66] |
1.1.3 6 months' follow‐up | 2 | 115 | Std. Mean Difference (IV, Random, 95% CI) | 0.46 [0.09, 0.84] |
1.2 Overall quality of life values | 20 | Std. Mean Difference (IV, Random, 95% CI) | Subtotals only | |
1.2.1 Up to 12 weeks' follow‐up | 16 | 760 | Std. Mean Difference (IV, Random, 95% CI) | 0.49 [0.24, 0.74] |
1.2.2 More than 12 weeks' to less than 6 months' follow‐up | 5 | 353 | Std. Mean Difference (IV, Random, 95% CI) | 0.11 [‐0.10, 0.32] |
1.2.3 6 months' follow‐up | 2 | 115 | Std. Mean Difference (IV, Random, 95% CI) | 0.25 [‐0.12, 0.62] |
1.3 FACT An change | 2 | Mean Difference (IV, Random, 95% CI) | Subtotals only | |
1.3.1 Up to 12 weeks' follow‐up | 2 | 183 | Mean Difference (IV, Random, 95% CI) | 7.10 [1.50, 12.71] |
1.4 FACT‐An follow‐up values | 2 | Mean Difference (IV, Random, 95% CI) | Subtotals only | |
1.4.1 Up to 12 weeks' follow‐up | 2 | 174 | Mean Difference (IV, Random, 95% CI) | 4.25 [‐3.28, 11.78] |
1.5 FACT‐B change | 3 | Mean Difference (IV, Random, 95% CI) | Subtotals only | |
1.5.1 Up to 12 weeks' follow‐up | 2 | 96 | Mean Difference (IV, Random, 95% CI) | 9.29 [‐3.73, 22.30] |
1.5.2 More than 12 weeks' to less than 6 months' follow‐up | 1 | 52 | Mean Difference (IV, Random, 95% CI) | 8.80 [2.34, 15.26] |
1.5.3 6 months' follow‐up | 1 | 36 | Mean Difference (IV, Random, 95% CI) | 8.20 [‐0.29, 16.69] |
1.6 FACT‐B follow‐up values | 5 | Mean Difference (IV, Random, 95% CI) | Subtotals only | |
1.6.1 Up to 12 weeks' follow‐up | 4 | 188 | Mean Difference (IV, Random, 95% CI) | 9.82 [‐0.76, 20.40] |
1.6.2 More than 12 weeks' to less than 6 months' follow‐up | 2 | 112 | Mean Difference (IV, Random, 95% CI) | 4.83 [‐1.71, 11.36] |
1.6.3 6 months' follow‐up | 1 | 36 | Mean Difference (IV, Random, 95% CI) | 1.90 [‐11.33, 15.13] |
1.7 FACT‐C change | 1 | 93 | Mean Difference (IV, Random, 95% CI) | ‐1.30 [‐7.19, 4.59] |
1.7.1 More than 12 weeks' to less than 6 months' follow‐up | 1 | 93 | Mean Difference (IV, Random, 95% CI) | ‐1.30 [‐7.19, 4.59] |
1.8 FACT‐C follow‐up values | 2 | Mean Difference (IV, Random, 95% CI) | Subtotals only | |
1.8.1 Up to 12 weeks' follow‐up | 1 | 17 | Mean Difference (IV, Random, 95% CI) | 14.00 [2.59, 25.41] |
1.8.2 More than 12 weeks' to less than 6 months' follow‐up | 1 | 93 | Mean Difference (IV, Random, 95% CI) | ‐2.40 [‐10.19, 5.39] |
1.9 FACT‐G change | 6 | Mean Difference (IV, Random, 95% CI) | Subtotals only | |
1.9.1 Up to 12 weeks' follow‐up | 3 | 198 | Mean Difference (IV, Random, 95% CI) | 4.94 [‐0.08, 9.95] |
1.9.2 More than 12 weeks' to less than 6 months' follow‐up | 2 | 145 | Mean Difference (IV, Random, 95% CI) | 2.10 [‐3.98, 8.17] |
1.9.3 6 months' follow‐up | 2 | 110 | Mean Difference (IV, Random, 95% CI) | 3.93 [0.45, 7.40] |
1.10 FACT‐G follow‐up values | 9 | Mean Difference (IV, Random, 95% CI) | Subtotals only | |
1.10.1 Up to 12 weeks' follow‐up | 6 | 318 | Mean Difference (IV, Random, 95% CI) | 5.90 [‐0.36, 12.16] |
1.10.2 More than 12 weeks' to less than 6 months' follow‐up | 3 | 207 | Mean Difference (IV, Random, 95% CI) | 1.79 [‐1.93, 5.50] |
1.10.3 6 months' follow‐up | 2 | 110 | Mean Difference (IV, Random, 95% CI) | 3.73 [‐2.08, 9.53] |
1.11 FACIT change | 2 | Mean Difference (IV, Random, 95% CI) | Totals not selected | |
1.11.1 Up to 12 weeks' follow‐up | 2 | Mean Difference (IV, Random, 95% CI) | Totals not selected | |
1.12 FACIT follow‐up values | 1 | 21 | Mean Difference (IV, Random, 95% CI) | ‐2.60 [‐21.19, 15.99] |
1.12.1 Up to 12 weeks' follow‐up | 1 | 21 | Mean Difference (IV, Random, 95% CI) | ‐2.60 [‐21.19, 15.99] |
1.13 QLQ‐C30 change | 3 | Mean Difference (IV, Random, 95% CI) | Subtotals only | |
1.13.1 Up to 12 weeks' follow‐up | 2 | 73 | Mean Difference (IV, Random, 95% CI) | 15.66 [‐7.78, 39.09] |
1.13.2 More than 12 weeks' less than 6 months' follow‐up | 1 | 101 | Mean Difference (IV, Random, 95% CI) | ‐1.60 [‐8.15, 4.95] |
1.14 QLQ‐C30 follow‐up values | 4 | Mean Difference (IV, Fixed, 95% CI) | Subtotals only | |
1.14.1 Up to 12 weeks' follow‐up | 3 | 109 | Mean Difference (IV, Fixed, 95% CI) | 13.80 [7.17, 20.43] |
1.14.2 More than 12 weeks' less than 6 months' follow‐up | 1 | 101 | Mean Difference (IV, Fixed, 95% CI) | ‐0.50 [‐7.13, 6.13] |
1.15 CARES follow‐up values | 1 | Mean Difference (IV, Random, 95% CI) | Subtotals only | |
1.15.1 6 months' follow‐up | 1 | 79 | Mean Difference (IV, Random, 95% CI) | ‐3.20 [‐7.19, 0.79] |
1.16 CARES change | 1 | Mean Difference (IV, Random, 95% CI) | Subtotals only | |
1.16.1 6 months' follow‐up | 1 | 79 | Mean Difference (IV, Random, 95% CI) | ‐1.70 [‐3.58, 0.18] |
1.17 Chae and Cho change | 1 | Mean Difference (IV, Random, 95% CI) | Subtotals only | |
1.17.1 Up to 12 weeks' follow‐up | 1 | 55 | Mean Difference (IV, Random, 95% CI) | 1.00 [0.39, 1.61] |
1.18 Chae and Cho follow‐up values | 1 | 55 | Mean Difference (IV, Random, 95% CI) | 0.70 [0.01, 1.39] |
1.18.1 Up to 12 weeks' follow‐up | 1 | 55 | Mean Difference (IV, Random, 95% CI) | 0.70 [0.01, 1.39] |
1.19 QoL Index follow‐up values | 1 | Mean Difference (IV, Random, 95% CI) | Subtotals only | |
1.19.1 Up to 12 weeks' follow‐up | 1 | 21 | Mean Difference (IV, Random, 95% CI) | 3.30 [‐5.35, 11.95] |
Comparison 2. Condition‐specific quality of life.
Outcome or subgroup title | No. of studies | No. of participants | Statistical method | Effect size |
---|---|---|---|---|
2.1 Breast cancer change | 4 | Std. Mean Difference (IV, Random, 95% CI) | Subtotals only | |
2.1.1 Up to 12 weeks' follow‐up | 2 | 205 | Std. Mean Difference (IV, Random, 95% CI) | ‐0.13 [‐0.41, 0.14] |
2.1.2 More than 12 weeks' up to 6 months' follow‐up | 1 | 52 | Std. Mean Difference (IV, Random, 95% CI) | 0.99 [0.41, 1.57] |
2.1.3 6 months' follow‐up | 2 | 110 | Std. Mean Difference (IV, Random, 95% CI) | 0.14 [‐0.24, 0.51] |
2.2 FACT‐B (breast) follow‐up values | 6 | Mean Difference (IV, Random, 95% CI) | Subtotals only | |
2.2.1 Up to 12 weeks' follow‐up | 4 | 175 | Mean Difference (IV, Random, 95% CI) | 2.20 [0.69, 3.72] |
2.2.2 More than 12 weeks' up to 6 months' follow‐up | 2 | 113 | Mean Difference (IV, Random, 95% CI) | 1.81 [‐0.35, 3.98] |
2.2.3 6 months' follow‐up | 2 | 110 | Mean Difference (IV, Random, 95% CI) | 2.05 [‐0.20, 4.30] |
2.3 FACT lymphoma follow‐up values | 1 | Mean Difference (IV, Random, 95% CI) | Subtotals only | |
2.3.1 Up to 12 weeks' follow‐up | 1 | 122 | Mean Difference (IV, Random, 95% CI) | 1.00 [‐1.74, 3.74] |
2.4 FACT lymphoma subscale change | 1 | Mean Difference (IV, Fixed, 95% CI) | Subtotals only | |
2.4.1 Up to 12 weeks' follow‐up | 1 | 122 | Mean Difference (IV, Fixed, 95% CI) | 1.20 [‐1.02, 3.42] |
2.5 FACT‐C (colorectal) change | 1 | Mean Difference (IV, Random, 95% CI) | Subtotals only | |
2.5.1 More than 12 weeks' less than 6 months' follow‐up | 1 | 93 | Mean Difference (IV, Random, 95% CI) | ‐0.20 [‐2.10, 1.70] |
2.6 FACT‐C (colorectal) follow‐up values | 1 | Mean Difference (IV, Random, 95% CI) | Subtotals only | |
2.6.1 More than 12 weeks' less than 6 months' follow‐up | 1 | 93 | Mean Difference (IV, Random, 95% CI) | ‐1.40 [‐3.33, 0.53] |
2.7 Neck Dissection Impairment Index follow‐up values | 1 | Mean Difference (IV, Random, 95% CI) | Subtotals only | |
2.7.1 Up to 12 weeks' follow‐up | 1 | 52 | Mean Difference (IV, Random, 95% CI) | 8.40 [‐3.54, 20.34] |
Comparison 3. Anxiety.
Outcome or subgroup title | No. of studies | No. of participants | Statistical method | Effect size |
---|---|---|---|---|
3.1 Overall anxiety change | 7 | Std. Mean Difference (IV, Random, 95% CI) | Subtotals only | |
3.1.1 Up to 12 weeks' follow‐up | 4 | 455 | Std. Mean Difference (IV, Random, 95% CI) | ‐0.26 [‐0.44, ‐0.07] |
3.1.2 More than 12 weeks' less than 6 months' follow‐up | 2 | 196 | Std. Mean Difference (IV, Random, 95% CI) | 0.06 [‐0.23, 0.35] |
3.1.3 6 months' follow‐up | 1 | 74 | Std. Mean Difference (IV, Random, 95% CI) | ‐0.15 [‐0.61, 0.30] |
3.2 Overall anxiety follow‐up scores | 11 | Std. Mean Difference (IV, Random, 95% CI) | Subtotals only | |
3.2.1 Up to 12 weeks' follow‐up | 8 | 396 | Std. Mean Difference (IV, Random, 95% CI) | ‐0.40 [‐0.77, ‐0.03] |
3.2.2 More than 12 weeks' less than 6 months' follow‐up | 2 | 196 | Std. Mean Difference (IV, Random, 95% CI) | 0.13 [‐0.15, 0.42] |
3.2.3 6 months' follow‐up | 1 | 74 | Std. Mean Difference (IV, Random, 95% CI) | ‐0.14 [‐0.60, 0.31] |
3.3 Hospital Anxiety and Depression; anxiety subscale change score | 2 | 159 | Mean Difference (IV, Random, 95% CI) | ‐0.50 [‐2.66, 1.66] |
3.3.1 Up to 12 weeks' follow‐up | 1 | 58 | Mean Difference (IV, Random, 95% CI) | ‐1.85 [‐4.09, 0.39] |
3.3.2 More than 12 weeks' up to 6 months' follow‐up | 1 | 101 | Mean Difference (IV, Random, 95% CI) | 0.40 [‐0.63, 1.43] |
3.4 Hospital Anxiety and Depression; anxiety subscale follow‐up scores | 2 | Mean Difference (IV, Random, 95% CI) | Subtotals only | |
3.4.1 Up to 12 weeks' follow‐up | 1 | 58 | Mean Difference (IV, Random, 95% CI) | ‐2.31 [‐4.53, ‐0.09] |
3.4.2 More than 12 weeks' follow‐up | 1 | 103 | Mean Difference (IV, Random, 95% CI) | 0.90 [‐0.53, 2.33] |
3.5 State Trait Anxiety Inventory change | 3 | Mean Difference (IV, Random, 95% CI) | Subtotals only | |
3.5.1 Up to 12 weeks' follow‐up | 1 | 122 | Mean Difference (IV, Random, 95% CI) | ‐1.00 [‐2.93, 0.93] |
3.5.2 More than 12 weeks' up to 6 months' follow‐up | 1 | 93 | Mean Difference (IV, Random, 95% CI) | ‐0.60 [‐5.57, 4.37] |
3.5.3 6 months' follow‐up | 1 | 74 | Mean Difference (IV, Random, 95% CI) | ‐1.20 [‐4.70, 2.30] |
3.6 State Trait Anxiety Inventory follow‐up scores | 6 | Mean Difference (IV, Random, 95% CI) | Subtotals only | |
3.6.1 Up to 12 weeks' follow‐up | 4 | 263 | Mean Difference (IV, Random, 95% CI) | ‐2.40 [‐6.90, 2.10] |
3.6.2 More than 12 weeks' less than 6 months' follow‐up | 1 | 93 | Mean Difference (IV, Random, 95% CI) | 0.00 [‐5.28, 5.28] |
3.6.3 6 months' follow‐up | 1 | 74 | Mean Difference (IV, Random, 95% CI) | ‐2.00 [‐8.35, 4.35] |
3.7 POMS tension anxiety subscale change | 2 | Mean Difference (IV, Random, 95% CI) | Subtotals only | |
3.7.1 Up to 12 weeks' follow‐up | 2 | 275 | Mean Difference (IV, Random, 95% CI) | 1.55 [0.08, 3.02] |
3.8 POMS tension anxiety subscale follow‐up scores | 3 | Mean Difference (IV, Fixed, 95% CI) | Subtotals only | |
3.8.1 Up to 12 weeks' follow‐up | 3 | 125 | Mean Difference (IV, Fixed, 95% CI) | ‐3.20 [‐5.40, ‐1.00] |
3.9 Linear Analog Self‐Assessment Scale follow‐up scores | 1 | Mean Difference (IV, Random, 95% CI) | Subtotals only | |
3.9.1 Up to 12 weeks' follow‐up | 1 | 21 | Mean Difference (IV, Random, 95% CI) | ‐13.80 [‐33.36, 5.76] |
Comparison 4. Body Image/self‐esteem.
Outcome or subgroup title | No. of studies | No. of participants | Statistical method | Effect size |
---|---|---|---|---|
4.1 Overall body image/self‐esteem change | 6 | Std. Mean Difference (IV, Random, 95% CI) | Subtotals only | |
4.1.1 Up to 12 weeks' follow‐up | 3 | 136 | Std. Mean Difference (IV, Random, 95% CI) | ‐1.09 [‐2.29, 0.11] |
4.1.2 More than 12 weeks' less than 6 months' follow‐up | 1 | 52 | Std. Mean Difference (IV, Random, 95% CI) | ‐0.74 [‐1.30, ‐0.18] |
4.1.3 6 months' follow‐up | 1 | 74 | Std. Mean Difference (IV, Random, 95% CI) | ‐0.05 [‐0.51, 0.40] |
4.1.4 More than 6 months' follow‐up | 1 | 122 | Std. Mean Difference (IV, Random, 95% CI) | ‐0.49 [‐0.86, ‐0.13] |
4.2 Overall body image/self‐esteem follow‐up scores | 9 | Std. Mean Difference (IV, Random, 95% CI) | Subtotals only | |
4.2.1 Up to 12 weeks' follow‐up | 5 | 233 | Std. Mean Difference (IV, Random, 95% CI) | ‐0.50 [‐0.79, ‐0.20] |
4.2.2 More than 12 weeks' less than 6 months' follow‐up | 2 | 113 | Std. Mean Difference (IV, Random, 95% CI) | ‐0.31 [‐0.83, 0.20] |
4.2.3 6 months' follow‐up | 1 | 74 | Std. Mean Difference (IV, Random, 95% CI) | ‐0.20 [‐0.65, 0.26] |
4.2.4 More than 6 months' follow‐up | 1 | 122 | Std. Mean Difference (IV, Random, 95% CI) | ‐0.06 [‐0.42, 0.29] |
4.3 Body Esteem Scale ‐ weight follow‐up scores | 2 | Mean Difference (IV, Random, 95% CI) | Subtotals only | |
4.3.1 Up to 12 weeks' follow‐up | 2 | 106 | Mean Difference (IV, Random, 95% CI) | 4.36 [‐0.91, 9.63] |
4.4 Body Image Questionnaire individual body image subscale change | 1 | Mean Difference (IV, Random, 95% CI) | Subtotals only | |
4.4.1 Up to 12 weeks' follow‐up | 1 | 57 | Mean Difference (IV, Random, 95% CI) | ‐0.34 [‐1.44, 0.76] |
4.5 Body Image Questionnaire individual body image subscale follow‐up values | 1 | 57 | Mean Difference (IV, Random, 95% CI) | ‐1.35 [‐2.50, ‐0.20] |
4.5.1 Up to 12 weeks' follow‐up | 1 | 57 | Mean Difference (IV, Random, 95% CI) | ‐1.35 [‐2.50, ‐0.20] |
4.6 Body Image and Relationship Scale change | 1 | Mean Difference (IV, Random, 95% CI) | Subtotals only | |
4.6.1 More than 6 months' follow‐up | 1 | 122 | Mean Difference (IV, Random, 95% CI) | 7.90 [2.27, 13.53] |
4.7 Body Image and Relationship Scale follow‐up values | 1 | 122 | Mean Difference (IV, Random, 95% CI) | ‐1.10 [‐7.19, 4.99] |
4.7.1 More than 6 months' follow‐up | 1 | 122 | Mean Difference (IV, Random, 95% CI) | ‐1.10 [‐7.19, 4.99] |
4.8 Social Physique Anxiety Scale change | 1 | Mean Difference (IV, Random, 95% CI) | Subtotals only | |
4.8.1 Up to 12 weeks' follow‐up | 1 | 58 | Mean Difference (IV, Random, 95% CI) | ‐1.60 [‐3.56, 0.36] |
4.9 Social Physique Anxiety Scale follow‐up values | 1 | 58 | Mean Difference (IV, Random, 95% CI) | ‐2.20 [‐5.57, 1.17] |
4.9.1 Up to 12 weeks' follow‐up | 1 | 58 | Mean Difference (IV, Random, 95% CI) | ‐2.20 [‐5.57, 1.17] |
4.10 Rosenberg Self‐Esteem Scale change | 3 | Mean Difference (IV, Random, 95% CI) | Subtotals only | |
4.10.1 Up to 12 weeks' follow‐up | 1 | 21 | Mean Difference (IV, Random, 95% CI) | 4.50 [3.40, 5.60] |
4.10.2 More than 12 weeks' less than 6 months' follow‐up | 1 | 52 | Mean Difference (IV, Random, 95% CI) | 2.70 [0.73, 4.67] |
4.10.3 6 months' follow‐up | 1 | 74 | Mean Difference (IV, Random, 95% CI) | 0.20 [‐1.50, 1.90] |
4.11 Rosenberg Self‐Esteem Scale follow‐up values | 3 | Mean Difference (IV, Random, 95% CI) | Subtotals only | |
4.11.1 Up to 12 weeks' follow‐up | 1 | 15 | Mean Difference (IV, Random, 95% CI) | 2.50 [‐0.12, 5.12] |
4.11.2 More than 12 weeks' less than 6 months' follow‐up | 1 | 52 | Mean Difference (IV, Random, 95% CI) | 0.20 [‐2.29, 2.69] |
4.11.3 6 months' follow‐up | 1 | 74 | Mean Difference (IV, Random, 95% CI) | 1.10 [‐1.43, 3.63] |
4.12 Physical Self‐Perception Profile attractiveness of body subscale follow‐up values | 1 | Mean Difference (IV, Random, 95% CI) | Subtotals only | |
4.12.1 Up to 12 weeks' follow‐up | 1 | 66 | Mean Difference (IV, Random, 95% CI) | 0.23 [‐0.10, 0.56] |
4.12.2 More than 12 weeks' less than 6 months' follow‐up | 1 | 62 | Mean Difference (IV, Random, 95% CI) | 0.26 [‐19.10, 19.62] |
4.13 Physical Self‐Perception Profile physical self‐worth subscale follow‐up values | 1 | Mean Difference (IV, Random, 95% CI) | Subtotals only | |
4.13.1 Up to 12 weeks' follow‐up | 1 | 65 | Mean Difference (IV, Random, 95% CI) | 0.46 [0.13, 0.79] |
4.13.2 More than 12 weeks' less than 6 months' follow‐up | 1 | 61 | Mean Difference (IV, Random, 95% CI) | 0.29 [0.04, 0.54] |
Comparison 5. Cognitive functioning.
Outcome or subgroup title | No. of studies | No. of participants | Statistical method | Effect size |
---|---|---|---|---|
5.1 Overall cognitive functioning change | 5 | Std. Mean Difference (IV, Random, 95% CI) | Subtotals only | |
5.1.1 Up to 12 weeks' follow‐up | 5 | 332 | Std. Mean Difference (IV, Random, 95% CI) | ‐0.06 [‐0.38, 0.26] |
5.1.2 6 months' follow‐up | 1 | 36 | Std. Mean Difference (IV, Random, 95% CI) | ‐0.23 [‐0.89, 0.43] |
5.2 Overall cognitive functioning follow‐up values | 10 | Std. Mean Difference (IV, Random, 95% CI) | Subtotals only | |
5.2.1 Up to 12 weeks' follow‐up | 9 | 439 | Std. Mean Difference (IV, Random, 95% CI) | 0.29 [‐0.57, 1.16] |
5.2.2 More than 12 weeks' less than 6 months' follow‐up | 3 | 186 | Std. Mean Difference (IV, Random, 95% CI) | ‐0.26 [‐0.55, 0.03] |
5.3 QLQ‐C30 cognitive function change | 3 | Mean Difference (IV, Fixed, 95% CI) | Subtotals only | |
5.3.1 Up to 12 weeks' follow‐up | 3 | 127 | Mean Difference (IV, Fixed, 95% CI) | 3.31 [‐2.92, 9.53] |
5.4 QLQ‐C30 cognitive function follow‐up values | 5 | Mean Difference (IV, Random, 95% CI) | Subtotals only | |
5.4.1 Up to 12 weeks' follow‐up | 4 | 256 | Mean Difference (IV, Random, 95% CI) | 4.47 [‐0.35, 9.28] |
5.4.2 More than 12 weeks' less than 6 months' follow‐up | 2 | 150 | Mean Difference (IV, Random, 95% CI) | 6.15 [‐0.30, 12.59] |
5.5 FACT Cog change | 1 | Mean Difference (IV, Random, 95% CI) | Subtotals only | |
5.5.1 Up to 12 weeks' follow‐up | 1 | 38 | Mean Difference (IV, Random, 95% CI) | ‐8.90 [‐22.95, 5.15] |
5.5.2 6 months' follow‐up | 1 | 36 | Mean Difference (IV, Random, 95% CI) | ‐4.72 [‐18.12, 8.68] |
5.6 FACT‐Cog follow‐up values | 1 | Mean Difference (IV, Random, 95% CI) | Subtotals only | |
5.6.1 12 weeks' follow‐up | 1 | 37 | Mean Difference (IV, Random, 95% CI) | ‐11.00 [‐27.52, 5.52] |
5.6.2 6 months' follow‐up | 1 | 36 | Mean Difference (IV, Random, 95% CI) | ‐2.80 [‐23.50, 17.90] |
5.7 Linear Analog Self‐Assessment Scale ‐ confusion follow‐up values | 1 | 21 | Mean Difference (IV, Random, 95% CI) | ‐4.90 [‐17.70, 7.90] |
5.7.1 Up to 12 weeks' follow‐up | 1 | 21 | Mean Difference (IV, Random, 95% CI) | ‐4.90 [‐17.70, 7.90] |
5.8 POMS confusion subscale change | 1 | Mean Difference (IV, Random, 95% CI) | Subtotals only | |
5.8.1 Up to 12 weeks' follow‐up | 1 | 167 | Mean Difference (IV, Random, 95% CI) | 1.15 [‐0.71, 3.01] |
5.9 Profile of Mood State confusion subscale follow‐up values | 4 | 233 | Mean Difference (IV, Random, 95% CI) | ‐1.62 [‐2.53, ‐0.71] |
5.9.1 Up to 12 weeks' follow‐up | 4 | 233 | Mean Difference (IV, Random, 95% CI) | ‐1.62 [‐2.53, ‐0.71] |
5.10 Symptoms of Stress Inventory ‐ cognitive disorganization subscale follow‐up values | 1 | Mean Difference (IV, Random, 95% CI) | Subtotals only | |
5.10.1 Up to 12 weeks' follow‐up | 1 | 36 | Mean Difference (IV, Random, 95% CI) | ‐1.67 [‐3.66, 0.32] |
Comparison 6. Depression.
Outcome or subgroup title | No. of studies | No. of participants | Statistical method | Effect size |
---|---|---|---|---|
6.1 Overall depression change | 7 | Std. Mean Difference (IV, Random, 95% CI) | Subtotals only | |
6.1.1 Up to 12 weeks' follow‐up | 4 | 455 | Std. Mean Difference (IV, Random, 95% CI) | ‐0.13 [‐0.51, 0.24] |
6.1.2 More than 12 weeks' less than 6 months' follow‐up | 2 | 196 | Std. Mean Difference (IV, Random, 95% CI) | 0.04 [‐0.25, 0.33] |
6.1.3 6 months' follow‐up | 1 | 74 | Std. Mean Difference (IV, Random, 95% CI) | ‐0.22 [‐0.68, 0.24] |
6.2 Overall depression follow‐up values | 15 | Std. Mean Difference (IV, Random, 95% CI) | Subtotals only | |
6.2.1 Up to 12 weeks' follow‐up | 12 | 707 | Std. Mean Difference (IV, Random, 95% CI) | ‐0.41 [‐0.65, ‐0.17] |
6.2.2 More than 12 weeks' less than 6 months' follow‐up | 3 | 258 | Std. Mean Difference (IV, Random, 95% CI) | ‐0.10 [‐0.41, 0.20] |
6.2.3 6 months' follow‐up | 1 | 74 | Std. Mean Difference (IV, Random, 95% CI) | 0.12 [‐0.33, 0.58] |
6.3 Centers for Epidemiologic Studies ‐ Depression Scale change | 3 | Mean Difference (IV, Random, 95% CI) | Subtotals only | |
6.3.1 Up to 12 weeks' follow‐up | 1 | 122 | Mean Difference (IV, Random, 95% CI) | ‐2.40 [‐4.05, ‐0.75] |
6.3.2 More than 12 weeks' up to 6 months' follow‐up | 1 | 93 | Mean Difference (IV, Random, 95% CI) | ‐0.50 [‐4.59, 3.59] |
6.3.3 6 months' follow‐up | 1 | 74 | Mean Difference (IV, Random, 95% CI) | ‐1.40 [‐4.29, 1.49] |
6.4 Centers for Epidemiologic Studies ‐ Depression Scale follow‐up values | 5 | 346 | Mean Difference (IV, Random, 95% CI) | ‐0.98 [‐2.44, 0.49] |
6.4.1 Up to 12 weeks' follow‐up | 3 | 179 | Mean Difference (IV, Random, 95% CI) | ‐2.68 [‐8.28, 2.93] |
6.4.2 More than 12 weeks' less than 6 months' follow‐up | 1 | 93 | Mean Difference (IV, Random, 95% CI) | ‐1.00 [‐5.41, 3.41] |
6.4.3 6 months' follow‐up | 1 | 74 | Mean Difference (IV, Random, 95% CI) | ‐1.20 [‐5.62, 3.22] |
6.5 Hospital Anxiety and Depression Scale ‐ depression subscale change | 2 | Mean Difference (IV, Random, 95% CI) | Subtotals only | |
6.5.1 Up to 12 weeks' follow‐up | 1 | 58 | Mean Difference (IV, Random, 95% CI) | ‐1.32 [‐3.38, 0.74] |
6.5.2 More than 12 weeks' up to 6 months' follow‐up | 1 | 103 | Mean Difference (IV, Random, 95% CI) | 0.50 [‐1.33, 2.33] |
6.6 Hospital Anxiety Depression Scale‐ depression subscale follow‐up values | 2 | 161 | Mean Difference (IV, Random, 95% CI) | ‐0.65 [‐2.82, 1.52] |
6.6.1 Up to 12 weeks' follow‐up | 1 | 58 | Mean Difference (IV, Random, 95% CI) | ‐1.94 [‐3.89, 0.01] |
6.6.2 More than 12 weeks' less than 6 months' follow‐up | 1 | 103 | Mean Difference (IV, Random, 95% CI) | 0.30 [‐0.63, 1.23] |
6.7 Profile of Moods Scale ‐ depression subscale follow‐up values | 4 | Mean Difference (IV, Random, 95% CI) | Subtotals only | |
6.7.1 Up to 12 weeks' follow‐up | 4 | 335 | Mean Difference (IV, Random, 95% CI) | ‐2.51 [‐4.28, ‐0.74] |
6.8 Beck Depression Inventory II follow‐up values | 3 | Mean Difference (IV, Random, 95% CI) | Subtotals only | |
6.8.1 Up to 12 weeks' follow‐up | 3 | 114 | Mean Difference (IV, Random, 95% CI) | ‐4.28 [‐6.01, ‐2.55] |
6.8.2 More than 12 weeks' less than 6 months' follow‐up | 1 | 62 | Mean Difference (IV, Random, 95% CI) | ‐3.03 [‐6.50, 0.44] |
6.9 Linear Analog Self‐Assessment scale follow‐up values | 1 | Mean Difference (IV, Random, 95% CI) | Subtotals only | |
6.9.1 Up to 12 weeks' follow‐up | 1 | 21 | Mean Difference (IV, Random, 95% CI) | ‐12.70 [‐24.86, ‐0.54] |
Comparison 7. Emotional well‐being/mental health.
Outcome or subgroup title | No. of studies | No. of participants | Statistical method | Effect size |
---|---|---|---|---|
7.1 Overall emotional well‐being/mental health change | 15 | Std. Mean Difference (IV, Random, 95% CI) | Subtotals only | |
7.1.1 Up to 12 weeks' follow‐up | 8 | 632 | Std. Mean Difference (IV, Random, 95% CI) | 0.33 [0.05, 0.61] |
7.1.2 More than 12 weeks' less than 6 months' follow‐up | 3 | 246 | Std. Mean Difference (IV, Random, 95% CI) | 0.13 [‐0.34, 0.60] |
7.1.3 6 months' follow‐up | 4 | 271 | Std. Mean Difference (IV, Random, 95% CI) | 0.60 [0.17, 1.03] |
7.1.4 More than 6 months' follow‐up | 2 | 202 | Std. Mean Difference (IV, Random, 95% CI) | 0.08 [‐0.19, 0.36] |
7.2 Overall emotional well‐being/mental health follow‐up values | 27 | Std. Mean Difference (IV, Fixed, 95% CI) | Subtotals only | |
7.2.1 Up to 12 weeks' follow‐up | 19 | 1086 | Std. Mean Difference (IV, Fixed, 95% CI) | 0.24 [0.12, 0.37] |
7.2.2 More than 12 weeks' less than 6 months' follow‐up | 9 | 666 | Std. Mean Difference (IV, Fixed, 95% CI) | 0.17 [0.01, 0.32] |
7.2.3 6 months' follow‐up | 3 | 189 | Std. Mean Difference (IV, Fixed, 95% CI) | 0.13 [‐0.16, 0.41] |
7.2.4 More than 6 months' follow‐up | 1 | 120 | Std. Mean Difference (IV, Fixed, 95% CI) | ‐0.22 [‐0.58, 0.14] |
7.3 FACT emotional subscale change | 6 | Mean Difference (IV, Random, 95% CI) | Subtotals only | |
7.3.1 Up to 12 weeks' follow‐up | 3 | 313 | Mean Difference (IV, Random, 95% CI) | 0.67 [‐0.71, 2.05] |
7.3.2 More than 12 weeks' less than 6 months' follow‐up | 2 | 145 | Mean Difference (IV, Random, 95% CI) | 0.18 [‐2.26, 2.63] |
7.3.3 6 months' follow‐up | 2 | 110 | Mean Difference (IV, Random, 95% CI) | 0.80 [‐0.17, 1.76] |
7.4 FACT emotional subscale follow‐up values | 10 | Mean Difference (IV, Random, 95% CI) | Subtotals only | |
7.4.1 Up to 12 weeks' follow‐up | 7 | 372 | Mean Difference (IV, Random, 95% CI) | 1.14 [‐0.08, 2.35] |
7.4.2 More than 12 weeks' less than 6 months' follow‐up | 4 | 263 | Mean Difference (IV, Random, 95% CI) | 0.36 [‐0.47, 1.19] |
7.4.3 6 months' follow‐up | 2 | 110 | Mean Difference (IV, Random, 95% CI) | ‐0.22 [‐2.18, 1.73] |
7.5 QLQ‐C30 subscale change | 4 | Mean Difference (IV, Random, 95% CI) | Subtotals only | |
7.5.1 Up to 12 weeks' follow‐up | 3 | 142 | Mean Difference (IV, Random, 95% CI) | 4.26 [‐4.19, 12.72] |
7.5.2 More than 12 weeks' less than 6 months' follow‐up | 1 | 101 | Mean Difference (IV, Random, 95% CI) | ‐4.80 [‐11.64, 2.04] |
7.6 QLQ‐C30 subscale follow‐up values | 7 | Mean Difference (IV, Random, 95% CI) | Subtotals only | |
7.6.1 Up to 12 weeks' follow‐up | 5 | 292 | Mean Difference (IV, Random, 95% CI) | 5.56 [0.55, 10.56] |
7.6.2 More than 12 weeks' less than 6 months' follow‐up | 3 | 251 | Mean Difference (IV, Random, 95% CI) | ‐0.55 [‐6.09, 4.99] |
7.7 MOS SF‐36 emotional role subscale change | 2 | Mean Difference (IV, Random, 95% CI) | Subtotals only | |
7.7.1 Up to 12 weeks' follow‐up | 1 | 58 | Mean Difference (IV, Random, 95% CI) | ‐1.27 [‐15.55, 13.01] |
7.7.2 6 months' follow‐up | 1 | 74 | Mean Difference (IV, Random, 95% CI) | 1.80 [‐2.32, 5.92] |
7.8 MOS SF‐36 emotional role subscale follow‐up values | 2 | Mean Difference (IV, Random, 95% CI) | Subtotals only | |
7.8.1 Up to 12 weeks' follow‐up | 1 | 58 | Mean Difference (IV, Random, 95% CI) | 7.96 [‐11.76, 27.68] |
7.8.2 6 months' follow‐up | 1 | 74 | Mean Difference (IV, Random, 95% CI) | 2.80 [‐2.32, 7.92] |
7.9 MOS SF‐36 mental health component change | 3 | Mean Difference (IV, Random, 95% CI) | Subtotals only | |
7.9.1 Up to 12 weeks' follow‐up | 1 | 58 | Mean Difference (IV, Random, 95% CI) | 2.26 [‐7.22, 11.74] |
7.9.2 6 months' follow‐up | 1 | 74 | Mean Difference (IV, Random, 95% CI) | 1.70 [‐1.82, 5.22] |
7.9.3 More than 6 months' follow‐up | 1 | 120 | Mean Difference (IV, Random, 95% CI) | 0.20 [‐7.15, 7.55] |
7.10 MOS SF‐36 mental health component follow‐up values | 4 | Mean Difference (IV, Random, 95% CI) | Subtotals only | |
7.10.1 Up to 12 weeks' follow‐up | 2 | 129 | Mean Difference (IV, Random, 95% CI) | 9.45 [4.75, 14.16] |
7.10.2 More than 12 weeks' less than 6 months' follow‐up | 1 | 60 | Mean Difference (IV, Random, 95% CI) | 13.85 [8.11, 19.59] |
7.10.3 6 months' follow‐up | 1 | 74 | Mean Difference (IV, Random, 95% CI) | 3.20 [‐2.02, 8.42] |
7.10.4 More than 6 months' follow‐up | 1 | 120 | Mean Difference (IV, Random, 95% CI) | ‐2.00 [‐5.23, 1.23] |
7.11 MOS SF‐12 mental health component follow‐up values | 2 | Mean Difference (IV, Random, 95% CI) | Subtotals only | |
7.11.1 Up to 12 weeks' follow‐up | 2 | 114 | Mean Difference (IV, Random, 95% CI) | 1.65 [‐1.62, 4.92] |
7.11.2 More than 12 weeks' less than 6 months' follow‐up | 1 | 87 | Mean Difference (IV, Random, 95% CI) | 3.42 [‐0.15, 6.99] |
7.12 POMS total mood disturbance change | 3 | Mean Difference (IV, Random, 95% CI) | Subtotals only | |
7.12.1 Up to 12 weeks' follow‐up | 2 | 275 | Mean Difference (IV, Random, 95% CI) | ‐8.08 [‐15.03, ‐1.12] |
7.12.2 6 months' follow‐up | 1 | 82 | Mean Difference (IV, Random, 95% CI) | ‐7.67 [‐19.29, 3.95] |
7.12.3 More than 6 months' follow‐up | 1 | 82 | Mean Difference (IV, Random, 95% CI) | ‐1.09 [‐12.84, 10.66] |
7.13 POMS total mood disturbance follow‐up values | 4 | Mean Difference (IV, Random, 95% CI) | Subtotals only | |
7.13.1 Up to 12 weeks' follow‐up | 4 | 213 | Mean Difference (IV, Random, 95% CI) | ‐10.43 [‐16.36, ‐4.51] |
7.14 POMS ‐ anxiety and depression subscales follow‐up values | 1 | Mean Difference (IV, Random, 95% CI) | Subtotals only | |
7.14.1 Up to 12 weeks' follow‐up | 1 | 87 | Mean Difference (IV, Random, 95% CI) | ‐0.13 [‐1.95, 1.69] |
7.14.2 More than 12 weeks' less than 6 months' follow‐up | 1 | 87 | Mean Difference (IV, Random, 95% CI) | ‐1.98 [‐3.97, 0.01] |
7.15 POMS anger subscale change | 2 | Mean Difference (IV, Random, 95% CI) | Subtotals only | |
7.15.1 Up to 12 weeks' follow‐up | 2 | 275 | Mean Difference (IV, Random, 95% CI) | 0.05 [‐1.48, 1.57] |
7.16 POMS anger subscale follow‐up values | 1 | Mean Difference (IV, Random, 95% CI) | Subtotals only | |
7.16.1 Up to 12 weeks' follow‐up | 1 | 18 | Mean Difference (IV, Random, 95% CI) | ‐1.50 [‐5.20, 2.20] |
7.17 CARES subscale change | 1 | Mean Difference (IV, Random, 95% CI) | Subtotals only | |
7.17.1 6 months' follow‐up | 1 | 79 | Mean Difference (IV, Random, 95% CI) | ‐2.20 [‐4.04, ‐0.36] |
7.18 CARES subscale follow‐up values | 1 | Mean Difference (IV, Random, 95% CI) | Subtotals only | |
7.18.1 6 months' follow‐up | 1 | 79 | Mean Difference (IV, Random, 95% CI) | ‐2.60 [‐6.22, 1.02] |
7.19 Cohen's perceived stress scale change | 1 | Mean Difference (IV, Random, 95% CI) | Subtotals only | |
7.19.1 6 months' follow‐up | 1 | 74 | Mean Difference (IV, Random, 95% CI) | ‐0.60 [‐3.36, 2.16] |
7.20 Cohen's perceived stress scale follow‐up values | 1 | Mean Difference (IV, Random, 95% CI) | Subtotals only | |
7.20.1 6 months' follow‐up | 1 | 74 | Mean Difference (IV, Random, 95% CI) | ‐0.90 [‐4.29, 2.49] |
7.21 Fordyce change | 1 | Mean Difference (IV, Random, 95% CI) | Subtotals only | |
7.21.1 6 months' follow‐up | 1 | 74 | Mean Difference (IV, Random, 95% CI) | 3.10 [‐5.36, 11.56] |
7.22 Fordyce follow‐up values | 1 | Mean Difference (IV, Random, 95% CI) | Subtotals only | |
7.22.1 6 months' follow‐up | 1 | 74 | Mean Difference (IV, Random, 95% CI) | 0.50 [‐9.78, 10.78] |
7.23 Happiness change | 1 | Mean Difference (IV, Random, 95% CI) | Subtotals only | |
7.23.1 More than 12 weeks' less than 6 months' follow‐up | 1 | 52 | Mean Difference (IV, Random, 95% CI) | 16.50 [3.02, 29.98] |
7.24 Happiness follow‐up values | 1 | Mean Difference (IV, Random, 95% CI) | Subtotals only | |
7.24.1 More than 12 weeks' less than 6 months' follow‐up | 1 | 52 | Mean Difference (IV, Random, 95% CI) | 7.10 [‐5.68, 19.88] |
7.25 Linear Analog Self‐Assessment Scale ‐ anger follow‐up values | 1 | Mean Difference (IV, Random, 95% CI) | Subtotals only | |
7.25.1 Up to 12 weeks' follow‐up | 1 | 21 | Mean Difference (IV, Random, 95% CI) | 2.50 [‐17.49, 22.49] |
7.26 Symptoms of Stress Index ‐ emotional irritability subscale follow‐up values | 1 | Mean Difference (IV, Random, 95% CI) | Subtotals only | |
7.26.1 Up to 12 weeks' follow‐up | 1 | 36 | Mean Difference (IV, Random, 95% CI) | ‐2.39 [‐4.79, 0.01] |
7.27 PANAS ‐ positivity follow‐up values | 3 | Mean Difference (IV, Random, 95% CI) | Subtotals only | |
7.27.1 Up to 12 weeks' follow‐up | 3 | 78 | Mean Difference (IV, Random, 95% CI) | 3.59 [‐0.18, 7.37] |
7.28 PANAS ‐ negativity follow‐up values | 3 | Mean Difference (IV, Random, 95% CI) | Subtotals only | |
7.28.1 Up to 12 weeks' follow‐up | 3 | 78 | Mean Difference (IV, Random, 95% CI) | ‐4.01 [‐7.26, ‐0.77] |
7.29 Satisfaction with Life Scale change | 3 | Mean Difference (IV, Random, 95% CI) | Subtotals only | |
7.29.1 Up to 12 weeks' follow‐up | 1 | 122 | Mean Difference (IV, Random, 95% CI) | 10.30 [3.51, 17.09] |
7.29.2 More than 12 weeks' less than 6 months' follow‐up | 2 | 149 | Mean Difference (IV, Random, 95% CI) | ‐0.17 [‐1.37, 1.03] |
7.30 Satisfaction with Life Scale follow‐up values | 4 | Mean Difference (IV, Random, 95% CI) | Subtotals only | |
7.30.1 Up to 12 weeks' follow‐up | 3 | 284 | Mean Difference (IV, Random, 95% CI) | ‐0.16 [‐1.89, 1.58] |
7.30.2 More than 12 weeks' less than 6 months' follow‐up | 1 | 93 | Mean Difference (IV, Random, 95% CI) | ‐0.90 [‐3.46, 1.66] |
7.31 Lee Psychosocial Adjustment instrument change | 1 | Mean Difference (IV, Random, 95% CI) | Subtotals only | |
7.31.1 Up to 12 weeks' follow‐up | 1 | 55 | Mean Difference (IV, Random, 95% CI) | 5.90 [2.57, 9.23] |
7.32 Lee Psychosocial Adjustment Instrument follow‐up values | 1 | Mean Difference (IV, Random, 95% CI) | Subtotals only | |
7.32.1 Up to 12 weeks' follow‐up | 1 | 55 | Mean Difference (IV, Random, 95% CI) | 4.80 [1.21, 8.39] |
Comparison 8. Fatigue.
Outcome or subgroup title | No. of studies | No. of participants | Statistical method | Effect size |
---|---|---|---|---|
8.1 Overall fatigue change | 14 | Std. Mean Difference (IV, Random, 95% CI) | Subtotals only | |
8.1.1 Up to 12 weeks' follow‐up | 10 | 745 | Std. Mean Difference (IV, Random, 95% CI) | ‐0.82 [‐1.50, ‐0.14] |
8.1.2 More than 12 weeks' less than 6 months' follow‐up | 3 | 246 | Std. Mean Difference (IV, Random, 95% CI) | ‐0.42 [‐0.83, ‐0.02] |
8.1.3 6 months' follow‐up | 3 | 514 | Std. Mean Difference (IV, Random, 95% CI) | ‐0.06 [‐0.31, 0.19] |
8.1.4 More than 6 months' follow‐up | 1 | 82 | Std. Mean Difference (IV, Random, 95% CI) | ‐0.38 [‐0.82, 0.06] |
8.2 Overall fatigue follow‐up values | 22 | Std. Mean Difference (IV, Random, 95% CI) | Subtotals only | |
8.2.1 Up to 12 weeks' follow‐up | 18 | 994 | Std. Mean Difference (IV, Random, 95% CI) | ‐0.30 [‐0.46, ‐0.14] |
8.2.2 More than 12 weeks' less than 6 months' follow‐up | 5 | 436 | Std. Mean Difference (IV, Random, 95% CI) | ‐0.03 [‐0.31, 0.25] |
8.2.3 6 months' follow‐up | 2 | 110 | Std. Mean Difference (IV, Random, 95% CI) | ‐0.10 [‐0.48, 0.27] |
8.3 FACT fatigue subscale change | 6 | Mean Difference (IV, Random, 95% CI) | Subtotals only | |
8.3.1 Up to 12 weeks' follow‐up | 4 | 296 | Mean Difference (IV, Random, 95% CI) | 4.33 [2.43, 6.22] |
8.3.2 More than 12 weeks' less than 6 months' follow‐up | 2 | 145 | Mean Difference (IV, Random, 95% CI) | ‐3.97 [‐10.53, 2.60] |
8.3.3 6 months' follow‐up | 1 | 36 | Mean Difference (IV, Random, 95% CI) | 1.28 [‐4.11, 6.67] |
8.4 FACT fatigue subscale follow‐up values | 11 | Mean Difference (IV, Random, 95% CI) | Subtotals only | |
8.4.1 Up to 12 weeks' follow‐up | 9 | 550 | Mean Difference (IV, Random, 95% CI) | 2.00 [0.00, 3.99] |
8.4.2 More than 12 weeks' up to 6 months' follow‐up | 3 | 250 | Mean Difference (IV, Random, 95% CI) | 0.21 [‐2.04, 2.45] |
8.4.3 6 months' follow‐up | 1 | 36 | Mean Difference (IV, Random, 95% CI) | 0.30 [‐7.22, 7.82] |
8.5 QLQ‐C30 fatigue subscale change | 4 | 259 | Mean Difference (IV, Random, 95% CI) | ‐15.38 [‐39.15, 8.38] |
8.5.1 Up to 12 weeks' follow‐up | 3 | 158 | Mean Difference (IV, Random, 95% CI) | ‐22.45 [‐50.66, 5.77] |
8.5.2 More than 12 weeks' less than 6 months' follow‐up | 1 | 101 | Mean Difference (IV, Random, 95% CI) | 11.20 [2.36, 20.04] |
8.6 QLQ‐C30 fatigue subscale follow‐up values | 5 | Mean Difference (IV, Random, 95% CI) | Subtotals only | |
8.6.1 Up to 12 weeks' follow‐up | 4 | 256 | Mean Difference (IV, Random, 95% CI) | ‐7.50 [‐12.92, ‐2.07] |
8.6.2 More than 12 weeks' less than 6 months' follow‐up | 2 | 206 | Mean Difference (IV, Random, 95% CI) | 3.03 [‐6.67, 12.73] |
8.7 Multidimensional Fatigue Inventory follow‐up values | 1 | Mean Difference (IV, Random, 95% CI) | Subtotals only | |
8.7.1 Up to 12 weeks' follow‐up | 1 | 87 | Mean Difference (IV, Random, 95% CI) | ‐0.21 [‐0.58, 0.16] |
8.8 MOS SF‐36 vitality subscale change | 2 | Mean Difference (IV, Random, 95% CI) | Subtotals only | |
8.8.1 Up to 12 weeks' follow‐up | 1 | 58 | Mean Difference (IV, Random, 95% CI) | 2.90 [‐6.33, 12.13] |
8.8.2 6 months' follow‐up | 1 | 74 | Mean Difference (IV, Random, 95% CI) | 0.40 [‐2.72, 3.52] |
8.9 MOS SF‐36 vitality subscale follow‐up values | 2 | Mean Difference (IV, Random, 95% CI) | Subtotals only | |
8.9.1 Up to 12 weeks' follow‐up | 1 | 58 | Mean Difference (IV, Random, 95% CI) | 8.09 [‐1.39, 17.57] |
8.9.2 6 months' follow‐up | 1 | 74 | Mean Difference (IV, Random, 95% CI) | 1.30 [‐3.03, 5.63] |
8.10 Piper Revised Fatigue Scale follow‐up values | 1 | Mean Difference (IV, Random, 95% CI) | Subtotals only | |
8.10.1 Up to 12 weeks' follow‐up | 1 | 66 | Mean Difference (IV, Random, 95% CI) | ‐1.30 [‐2.17, ‐0.43] |
8.10.2 More than 12 weeks' less than 6 months' follow‐up | 1 | 59 | Mean Difference (IV, Random, 95% CI) | ‐0.78 [‐1.83, 0.27] |
8.11 Schwartz Cancer Fatigue scale change | 1 | Mean Difference (IV, Random, 95% CI) | Subtotals only | |
8.11.1 Up to 12 weeks' follow‐up | 1 | 58 | Mean Difference (IV, Random, 95% CI) | ‐2.20 [‐4.32, ‐0.08] |
8.12 Linear Analog Self‐Assessment energy scale follow‐up values | 1 | Mean Difference (IV, Random, 95% CI) | Subtotals only | |
8.12.1 Up to 12 weeks' follow‐up | 1 | 21 | Mean Difference (IV, Random, 95% CI) | ‐19.00 [‐31.89, ‐6.11] |
8.13 Linear Analog Self‐Assessment scale change | 1 | Mean Difference (IV, Random, 95% CI) | Subtotals only | |
8.13.1 Up to 12 weeks' follow‐up | 1 | 82 | Mean Difference (IV, Random, 95% CI) | ‐13.14 [‐23.32, ‐2.96] |
8.13.2 6 months' follow‐up | 1 | 404 | Mean Difference (IV, Random, 95% CI) | ‐2.44 [‐13.06, 8.18] |
8.13.3 More than 6 months' follow‐up | 1 | 82 | Mean Difference (IV, Random, 95% CI) | ‐9.47 [‐20.13, 1.19] |
8.14 Linear Analog Self‐Assessment scale follow‐up values | 2 | Mean Difference (IV, Random, 95% CI) | Subtotals only | |
8.14.1 Up to 12 weeks' follow‐up | 2 | 103 | Mean Difference (IV, Random, 95% CI) | ‐15.40 [‐25.08, ‐5.73] |
8.15 Schwartz Cancer Fatigue scale follow‐up values | 1 | Mean Difference (IV, Random, 95% CI) | Subtotals only | |
8.15.1 Up to 12 weeks' follow‐up | 1 | 58 | Mean Difference (IV, Random, 95% CI) | ‐4.00 [‐6.03, ‐1.97] |
8.16 POMS fatigue subscale change | 2 | Mean Difference (IV, Random, 95% CI) | Subtotals only | |
8.16.1 Up to 12 weeks' follow‐up | 2 | 275 | Mean Difference (IV, Random, 95% CI) | ‐0.17 [‐2.25, 1.92] |
8.17 POMS ‐ fatigue subscale follow‐up values | 1 | Mean Difference (IV, Random, 95% CI) | Subtotals only | |
8.17.1 Up to 12 weeks' follow‐up | 1 | 24 | Mean Difference (IV, Random, 95% CI) | ‐1.84 [‐6.96, 3.28] |
8.18 POMS vigor subscale change | 3 | Mean Difference (IV, Random, 95% CI) | Subtotals only | |
8.18.1 Up to 12 weeks' follow‐up | 2 | 275 | Mean Difference (IV, Random, 95% CI) | 2.37 [‐1.70, 6.44] |
8.18.2 6 months' follow‐up | 1 | 82 | Mean Difference (IV, Random, 95% CI) | 2.23 [‐0.48, 4.94] |
8.18.3 More than 6 months' follow‐up | 1 | 82 | Mean Difference (IV, Random, 95% CI) | 0.84 [‐1.89, 3.57] |
8.19 POMS vigor subscale follow‐up values | 1 | Mean Difference (IV, Fixed, 95% CI) | Subtotals only | |
8.19.1 Up to 12 weeks' follow‐up | 1 | 82 | Mean Difference (IV, Fixed, 95% CI) | 4.77 [2.36, 7.18] |
8.20 POMS short form vigor follow‐up values | 1 | Mean Difference (IV, Random, 95% CI) | Subtotals only | |
8.20.1 Up to 12 weeks' follow‐up | 1 | 86 | Mean Difference (IV, Random, 95% CI) | 0.27 [‐0.07, 0.61] |
8.20.2 More than 12 weeks' less than 6 months' follow‐up | 1 | 85 | Mean Difference (IV, Random, 95% CI) | 0.39 [0.05, 0.73] |
8.21 Brief Fatigue Inventory follow‐up values | 1 | Mean Difference (IV, Random, 95% CI) | Subtotals only | |
8.21.1 Up to 12 weeks' follow‐up | 1 | 30 | Mean Difference (IV, Random, 95% CI) | 0.00 [‐1.08, 1.08] |
Comparison 9. General health perspective.
Outcome or subgroup title | No. of studies | No. of participants | Statistical method | Effect size |
---|---|---|---|---|
9.1 Overall general health change | 4 | Std. Mean Difference (IV, Random, 95% CI) | Subtotals only | |
9.1.1 Up to 12 weeks' follow‐up | 2 | 96 | Std. Mean Difference (IV, Random, 95% CI) | 0.11 [‐0.29, 0.51] |
9.1.2 6 months' follow‐up | 3 | 189 | Std. Mean Difference (IV, Random, 95% CI) | 0.03 [‐0.38, 0.44] |
9.2 Overall general health follow‐up values | 6 | Std. Mean Difference (IV, Random, 95% CI) | Subtotals only | |
9.2.1 Up to 12 weeks' follow‐up | 4 | 249 | Std. Mean Difference (IV, Random, 95% CI) | 0.14 [‐0.20, 0.49] |
9.2.2 More than 12 weeks' less than 6 months' follow‐up | 1 | 105 | Std. Mean Difference (IV, Random, 95% CI) | 0.19 [‐0.19, 0.58] |
9.2.3 6 months' follow‐up | 3 | 189 | Std. Mean Difference (IV, Random, 95% CI) | 0.03 [‐0.30, 0.36] |
9.3 QLQ‐C30 subscale follow‐up values | 2 | 288 | Mean Difference (IV, Random, 95% CI) | 4.03 [0.14, 7.92] |
9.3.1 Up to 12 weeks' follow‐up | 2 | 183 | Mean Difference (IV, Random, 95% CI) | 4.25 [‐1.09, 9.60] |
9.3.2 More than 12 weeks' less than 6 months' follow‐up | 1 | 105 | Mean Difference (IV, Random, 95% CI) | 3.30 [‐3.25, 9.85] |
9.4 CARES subscale change | 1 | Mean Difference (IV, Random, 95% CI) | Subtotals only | |
9.4.1 6 months' follow‐up | 1 | 79 | Mean Difference (IV, Random, 95% CI) | ‐1.30 [‐3.23, 0.63] |
9.5 CARES subscale follow‐up values | 1 | Mean Difference (IV, Random, 95% CI) | Subtotals only | |
9.5.1 6 months' follow‐up | 1 | 79 | Mean Difference (IV, Random, 95% CI) | ‐0.60 [‐3.09, 1.89] |
9.6 MOS general health subscale change | 2 | Mean Difference (IV, Random, 95% CI) | Subtotals only | |
9.6.1 Up to 12 weeks' follow‐up | 1 | 58 | Mean Difference (IV, Random, 95% CI) | 3.36 [‐5.43, 12.15] |
9.6.2 6 months' follow‐up | 1 | 74 | Mean Difference (IV, Random, 95% CI) | 3.00 [‐0.98, 6.98] |
9.7 MOS general health subscale follow‐up values | 2 | Mean Difference (IV, Random, 95% CI) | Subtotals only | |
9.7.1 Up to 12 weeks' follow‐up | 1 | 58 | Mean Difference (IV, Random, 95% CI) | 4.37 [‐4.43, 13.17] |
9.7.2 6 months' follow‐up | 1 | 74 | Mean Difference (IV, Random, 95% CI) | 5.00 [‐1.92, 11.92] |
9.8 Single question change | 1 | Mean Difference (IV, Random, 95% CI) | Subtotals only | |
9.8.1 Up to 12 weeks' follow‐up | 1 | 38 | Mean Difference (IV, Random, 95% CI) | ‐0.02 [‐0.44, 0.40] |
9.8.2 6 months' follow‐up | 1 | 36 | Mean Difference (IV, Random, 95% CI) | 0.04 [‐0.35, 0.43] |
9.9 Single question follow‐up values | 1 | Mean Difference (IV, Random, 95% CI) | Subtotals only | |
9.9.1 Up to 12 weeks' follow‐up | 1 | 38 | Mean Difference (IV, Random, 95% CI) | ‐0.30 [‐0.76, 0.16] |
9.9.2 6 months' follow‐up | 1 | 36 | Mean Difference (IV, Random, 95% CI) | ‐0.20 [‐0.79, 0.39] |
Comparison 10. Pain.
Outcome or subgroup title | No. of studies | No. of participants | Statistical method | Effect size |
---|---|---|---|---|
10.1 Overall pain change | 2 | Std. Mean Difference (IV, Random, 95% CI) | Subtotals only | |
10.1.1 Up to 12 weeks' follow‐up | 1 | 57 | Std. Mean Difference (IV, Random, 95% CI) | 0.09 [‐0.43, 0.61] |
10.1.2 6 months' follow‐up | 1 | 74 | Std. Mean Difference (IV, Random, 95% CI) | 0.22 [‐0.24, 0.68] |
10.2 Overall pain follow‐up values | 5 | Std. Mean Difference (IV, Random, 95% CI) | Subtotals only | |
10.2.1 Up to 12 weeks' follow‐up | 4 | 289 | Std. Mean Difference (IV, Random, 95% CI) | ‐0.29 [‐0.55, ‐0.04] |
10.2.2 More than 12 weeks' less than 6 months' follow‐up | 1 | 105 | Std. Mean Difference (IV, Random, 95% CI) | 0.05 [‐0.34, 0.43] |
10.2.3 6 months' follow‐up | 1 | 74 | Std. Mean Difference (IV, Random, 95% CI) | 0.05 [‐0.40, 0.51] |
10.3 QLQ‐C30 pain subscale change | 1 | Mean Difference (IV, Random, 95% CI) | Subtotals only | |
10.3.1 Up to 12 weeks' follow‐up | 1 | 57 | Mean Difference (IV, Random, 95% CI) | 2.14 [‐9.95, 14.23] |
10.4 QLQ‐C30 subscale follow‐up values | 2 | Mean Difference (IV, Random, 95% CI) | Subtotals only | |
10.4.1 Up to 12 weeks' follow‐up | 2 | 183 | Mean Difference (IV, Random, 95% CI) | ‐3.73 [‐13.52, 6.05] |
10.4.2 More than 12 weeks' less than 6 months' follow‐up | 1 | 105 | Mean Difference (IV, Random, 95% CI) | 1.30 [‐9.41, 12.01] |
10.5 MOS SF‐36 subscale change | 2 | 132 | Mean Difference (IV, Random, 95% CI) | 1.09 [‐3.86, 6.04] |
10.5.1 Up to 12 weeks' follow‐up | 1 | 58 | Mean Difference (IV, Random, 95% CI) | ‐5.21 [‐18.13, 7.71] |
10.5.2 6 months' follow‐up | 1 | 74 | Mean Difference (IV, Random, 95% CI) | 2.10 [‐2.18, 6.38] |
10.6 MOS SF‐36 follow‐up values | 2 | 132 | Mean Difference (IV, Random, 95% CI) | 0.14 [‐3.77, 4.05] |
10.6.1 Up to 12 weeks' follow‐up | 1 | 58 | Mean Difference (IV, Random, 95% CI) | 5.90 [‐6.47, 18.27] |
10.6.2 6 months' follow‐up | 1 | 74 | Mean Difference (IV, Random, 95% CI) | ‐0.50 [‐4.62, 3.62] |
10.7 SPADI subscale follow‐up values | 1 | 52 | Mean Difference (IV, Random, 95% CI) | ‐14.00 [‐26.04, ‐1.96] |
10.7.1 Up to 12 weeks' follow‐up | 1 | 52 | Mean Difference (IV, Random, 95% CI) | ‐14.00 [‐26.04, ‐1.96] |
Comparison 11. Physical functioning.
Outcome or subgroup title | No. of studies | No. of participants | Statistical method | Effect size |
---|---|---|---|---|
11.1 Overall physical functioning change | 11 | Std. Mean Difference (IV, Random, 95% CI) | Subtotals only | |
11.1.1 Up to 12 weeks' follow‐up | 5 | 386 | Std. Mean Difference (IV, Random, 95% CI) | 0.29 [‐0.08, 0.66] |
11.1.2 More than 12 weeks' less than 6 months' follow‐up | 3 | 246 | Std. Mean Difference (IV, Random, 95% CI) | 0.28 [‐0.28, 0.85] |
11.1.3 6 months' follow‐up | 3 | 189 | Std. Mean Difference (IV, Random, 95% CI) | ‐0.11 [‐0.69, 0.48] |
11.1.4 More than 6 months' follow‐up | 1 | 120 | Std. Mean Difference (IV, Random, 95% CI) | 0.14 [‐0.21, 0.50] |
11.2 Overall physical functioning follow‐up values | 20 | Std. Mean Difference (IV, Random, 95% CI) | Subtotals only | |
11.2.1 Up to 12 weeks' follow‐up | 15 | 878 | Std. Mean Difference (IV, Random, 95% CI) | 0.36 [0.09, 0.64] |
11.2.2 More than 12 weeks' less than 6 months' follow‐up | 7 | 559 | Std. Mean Difference (IV, Random, 95% CI) | 0.25 [‐0.05, 0.54] |
11.2.3 6 months' follow‐up | 2 | 110 | Std. Mean Difference (IV, Random, 95% CI) | 0.19 [‐0.18, 0.57] |
11.2.4 More than 6 months' follow‐up | 1 | 120 | Std. Mean Difference (IV, Random, 95% CI) | 0.19 [‐0.17, 0.55] |
11.3 FACT physical function subscale change | 6 | Mean Difference (IV, Random, 95% CI) | Subtotals only | |
11.3.1 Up to 12 weeks' follow‐up | 3 | 313 | Mean Difference (IV, Random, 95% CI) | 0.74 [‐1.14, 2.62] |
11.3.2 More than 12 weeks' less than 6 months' follow‐up | 2 | 145 | Mean Difference (IV, Random, 95% CI) | 1.22 [‐0.97, 3.41] |
11.3.3 6 months' follow‐up | 2 | 110 | Mean Difference (IV, Random, 95% CI) | 0.64 [‐0.60, 1.89] |
11.4 FACT physical function subscale follow‐up values | 9 | 673 | Mean Difference (IV, Random, 95% CI) | 1.13 [‐0.09, 2.35] |
11.4.1 Up to 12 weeks' follow‐up | 6 | 356 | Mean Difference (IV, Random, 95% CI) | 1.60 [‐0.71, 3.92] |
11.4.2 More than 12 weeks' less than 6 months' follow‐up | 3 | 207 | Mean Difference (IV, Random, 95% CI) | 0.55 [‐0.45, 1.55] |
11.4.3 6 months' follow‐up | 2 | 110 | Mean Difference (IV, Random, 95% CI) | 0.85 [‐0.58, 2.28] |
11.5 QLQ‐C30 subscale change | 3 | Mean Difference (IV, Random, 95% CI) | Subtotals only | |
11.5.1 More than 12 weeks' less than 6 months' follow‐up | 2 | 73 | Mean Difference (IV, Random, 95% CI) | 6.23 [1.74, 10.72] |
11.5.2 More than 12 weeks' less than 6 months' follow‐up | 1 | 101 | Mean Difference (IV, Random, 95% CI) | 0.30 [‐6.83, 7.43] |
11.6 QLQ‐C30 subscale follow‐up values | 5 | Mean Difference (IV, Random, 95% CI) | Subtotals only | |
11.6.1 Up to 12 weeks' follow‐up | 4 | 256 | Mean Difference (IV, Random, 95% CI) | 2.55 [‐0.29, 5.38] |
11.6.2 More than 12 weeks' less than 6 months' follow‐up | 2 | 206 | Mean Difference (IV, Random, 95% CI) | 0.90 [‐6.83, 8.64] |
11.7 MOS SF‐36 subscale change | 3 | Mean Difference (IV, Random, 95% CI) | Subtotals only | |
11.7.1 Up to 12 weeks' follow‐up | 1 | 58 | Mean Difference (IV, Random, 95% CI) | 6.11 [‐1.19, 13.41] |
11.7.2 6 months' follow‐up | 1 | 74 | Mean Difference (IV, Random, 95% CI) | ‐0.20 [‐2.37, 1.97] |
11.7.3 More than 6 months' follow‐up | 1 | 120 | Mean Difference (IV, Random, 95% CI) | 2.50 [‐3.66, 8.66] |
11.8 MOS SF‐12 subscale follow‐up values | 3 | Mean Difference (IV, Random, 95% CI) | Subtotals only | |
11.8.1 Up to 12 weeks' follow‐up | 3 | 172 | Mean Difference (IV, Random, 95% CI) | 4.74 [0.31, 9.17] |
11.8.2 More than 12 weeks' less than 6 months' follow‐up | 1 | 87 | Mean Difference (IV, Random, 95% CI) | 2.12 [‐2.18, 6.42] |
11.9 MOS SF‐36 subscale follow‐up values | 3 | 323 | Mean Difference (IV, Random, 95% CI) | 6.42 [1.14, 11.71] |
11.9.1 Up to 12 weeks' follow‐up | 1 | 59 | Mean Difference (IV, Random, 95% CI) | 9.83 [5.26, 14.40] |
11.9.2 6 months' follow‐up | 2 | 144 | Mean Difference (IV, Random, 95% CI) | 7.93 [‐4.16, 20.02] |
11.9.3 More than 6 months' follow‐up | 1 | 120 | Mean Difference (IV, Random, 95% CI) | 1.40 [‐1.25, 4.05] |
11.10 CARES subscale change | 1 | 79 | Mean Difference (IV, Random, 95% CI) | ‐3.30 [‐5.54, ‐1.06] |
11.10.1 6 months' follow‐up | 1 | 79 | Mean Difference (IV, Random, 95% CI) | ‐3.30 [‐5.54, ‐1.06] |
11.11 CARES subscale follow‐up values | 1 | Mean Difference (IV, Random, 95% CI) | Subtotals only | |
11.11.1 6 months' follow‐up | 1 | 79 | Mean Difference (IV, Random, 95% CI) | ‐4.10 [‐7.06, ‐1.14] |
11.12 Body Esteem Scale ‐ physical condition follow‐up values | 2 | Mean Difference (IV, Random, 95% CI) | Subtotals only | |
11.12.1 Up to 12 weeks' follow‐up | 2 | 106 | Mean Difference (IV, Random, 95% CI) | 4.41 [0.57, 8.25] |
Comparison 12. Role function.
Outcome or subgroup title | No. of studies | No. of participants | Statistical method | Effect size |
---|---|---|---|---|
12.1 Overall role function change | 9 | Std. Mean Difference (IV, Random, 95% CI) | Subtotals only | |
12.1.1 Up to 12 weeks' follow‐up | 6 | 479 | Std. Mean Difference (IV, Random, 95% CI) | 0.15 [‐0.16, 0.46] |
12.1.2 More than 12 weeks' less than 6 months' follow‐up | 1 | 52 | Std. Mean Difference (IV, Random, 95% CI) | 0.18 [‐0.37, 0.73] |
12.1.3 6 months' follow‐up | 3 | 189 | Std. Mean Difference (IV, Random, 95% CI) | 0.07 [‐0.22, 0.35] |
12.2 Overall role function follow‐up values | 16 | Std. Mean Difference (IV, Random, 95% CI) | Subtotals only | |
12.2.1 Up to 12 weeks' follow‐up | 12 | 719 | Std. Mean Difference (IV, Random, 95% CI) | 0.27 [0.04, 0.50] |
12.2.2 More than 12 weeks' less than 6 months' follow‐up | 4 | 263 | Std. Mean Difference (IV, Random, 95% CI) | 0.18 [‐0.06, 0.42] |
12.2.3 6 months' follow‐up | 3 | 189 | Std. Mean Difference (IV, Random, 95% CI) | 0.16 [‐0.13, 0.44] |
12.3 FACT functional well‐being subscale change | 6 | Mean Difference (IV, Random, 95% CI) | Subtotals only | |
12.3.1 Up to 12 weeks' follow‐up | 4 | 406 | Mean Difference (IV, Random, 95% CI) | 0.70 [‐0.96, 2.36] |
12.3.2 More than 12 weeks' less than 6 months' follow‐up | 1 | 52 | Mean Difference (IV, Random, 95% CI) | 0.50 [‐1.00, 2.00] |
12.3.3 6 months' follow‐up | 2 | 110 | Mean Difference (IV, Random, 95% CI) | 0.56 [‐0.77, 1.89] |
12.4 FACT functional well‐being follow‐up values | 9 | Mean Difference (IV, Random, 95% CI) | Subtotals only | |
12.4.1 Up to 12 weeks' follow‐up | 7 | 449 | Mean Difference (IV, Random, 95% CI) | 1.63 [‐0.43, 3.70] |
12.4.2 More than 12 weeks' less than 6 months' follow‐up | 2 | 113 | Mean Difference (IV, Random, 95% CI) | 0.74 [‐1.03, 2.51] |
12.4.3 6 months' follow‐up | 2 | 110 | Mean Difference (IV, Random, 95% CI) | 0.91 [‐1.02, 2.84] |
12.5 QLQ‐C30 role functioning change | 2 | Mean Difference (IV, Random, 95% CI) | Subtotals only | |
12.5.1 Up to 12 weeks' follow‐up | 2 | 73 | Mean Difference (IV, Random, 95% CI) | 0.42 [‐7.80, 8.65] |
12.6 QLQ‐C30 role functioning subscale follow‐up values | 5 | Mean Difference (IV, Random, 95% CI) | Subtotals only | |
12.6.1 Up to 12 weeks' follow‐up | 4 | 256 | Mean Difference (IV, Random, 95% CI) | 7.23 [0.59, 13.87] |
12.6.2 More than 12 weeks' less than 6 months' follow‐up | 2 | 150 | Mean Difference (IV, Random, 95% CI) | 4.63 [‐3.55, 12.80] |
12.7 MOS SF‐36 role function subscale change | 1 | Mean Difference (IV, Random, 95% CI) | Subtotals only | |
12.7.1 6 months' follow‐up | 1 | 74 | Mean Difference (IV, Random, 95% CI) | ‐0.40 [‐5.23, 4.43] |
12.8 MOS SF‐36 role function subscale follow‐up values | 1 | Mean Difference (IV, Random, 95% CI) | Subtotals only | |
12.8.1 6 months' follow‐up | 1 | 74 | Mean Difference (IV, Random, 95% CI) | 0.20 [‐3.71, 4.11] |
12.9 CARES marital subscale change | 1 | Mean Difference (IV, Random, 95% CI) | Subtotals only | |
12.9.1 6 months' follow‐up | 1 | 79 | Mean Difference (IV, Random, 95% CI) | 0.30 [‐2.19, 2.79] |
12.10 CARES marital subscale follow‐up values | 1 | Mean Difference (IV, Random, 95% CI) | Subtotals only | |
12.10.1 6 months' follow‐up | 1 | 79 | Mean Difference (IV, Random, 95% CI) | 0.80 [‐2.00, 3.60] |
Comparison 13. Sexuality.
Outcome or subgroup title | No. of studies | No. of participants | Statistical method | Effect size |
---|---|---|---|---|
13.1 Overall sexuality change | 2 | Std. Mean Difference (IV, Random, 95% CI) | Subtotals only | |
13.1.1 6 months' follow‐up | 2 | 193 | Std. Mean Difference (IV, Random, 95% CI) | 0.40 [0.11, 0.68] |
13.2 Overall sexuality follow‐up values | 4 | Std. Mean Difference (IV, Random, 95% CI) | Subtotals only | |
13.2.1 Up to 12 weeks' follow‐up | 2 | 100 | Std. Mean Difference (IV, Random, 95% CI) | 0.28 [‐0.11, 0.68] |
13.2.2 6 months' follow‐up | 2 | 193 | Std. Mean Difference (IV, Random, 95% CI) | 0.21 [‐0.07, 0.49] |
13.3 Body Esteem Scale ‐ sexual attractiveness follow‐up values | 2 | Mean Difference (IV, Random, 95% CI) | Subtotals only | |
13.3.1 Up to 12 weeks' follow‐up | 2 | 100 | Mean Difference (IV, Random, 95% CI) | 2.28 [‐0.83, 5.39] |
13.4 CARE sexuality change | 1 | Mean Difference (IV, Random, 95% CI) | Subtotals only | |
13.4.1 6 months' follow‐up | 1 | 79 | Mean Difference (IV, Random, 95% CI) | ‐1.50 [‐3.71, 0.71] |
13.5 CARE sexuality follow‐up values | 1 | Mean Difference (IV, Random, 95% CI) | Subtotals only | |
13.5.1 6 months' follow‐up | 1 | 79 | Mean Difference (IV, Random, 95% CI) | ‐2.50 [‐5.92, 0.92] |
13.6 BIRS appearance and sexuality subscale change | 1 | Mean Difference (IV, Random, 95% CI) | Subtotals only | |
13.6.1 More than 6 months' follow‐up | 1 | 114 | Mean Difference (IV, Random, 95% CI) | 7.40 [1.64, 13.16] |
13.7 BIRS appearance and sexuality follow‐up values | 1 | Mean Difference (IV, Random, 95% CI) | Subtotals only | |
13.7.1 More than 6 months' follow‐up | 1 | 114 | Mean Difference (IV, Random, 95% CI) | ‐0.80 [‐2.92, 1.32] |
Comparison 14. Sleep disturbances.
Outcome or subgroup title | No. of studies | No. of participants | Statistical method | Effect size |
---|---|---|---|---|
14.1 Overall sleep disturbance change | 2 | Std. Mean Difference (IV, Random, 95% CI) | Subtotals only | |
14.1.1 Up to 12 weeks' follow‐up | 2 | 95 | Std. Mean Difference (IV, Random, 95% CI) | 0.10 [‐0.30, 0.50] |
14.2 Overall sleep disturbance follow‐up values | 8 | Std. Mean Difference (IV, Random, 95% CI) | Subtotals only | |
14.2.1 Up to 12 weeks' follow‐up | 8 | 438 | Std. Mean Difference (IV, Random, 95% CI) | ‐0.46 [‐0.72, ‐0.20] |
14.2.2 More than 12 weeks' less than 6 months' follow‐up | 2 | 164 | Std. Mean Difference (IV, Random, 95% CI) | ‐0.52 [‐1.64, 0.61] |
14.3 Pittsburgh Sleep Quality Index change | 1 | Mean Difference (IV, Random, 95% CI) | Subtotals only | |
14.3.1 Up to 12 weeks' follow‐up | 1 | 38 | Mean Difference (IV, Random, 95% CI) | 0.17 [‐2.19, 2.53] |
14.4 Pittsburg Sleep Quality Index follow‐up values | 5 | Mean Difference (IV, Random, 95% CI) | Subtotals only | |
14.4.1 Up to 12 weeks' follow‐up | 5 | 199 | Mean Difference (IV, Random, 95% CI) | ‐1.55 [‐3.12, 0.02] |
14.4.2 More than 12 weeks' less than 6 months' follow‐up | 1 | 59 | Mean Difference (IV, Random, 95% CI) | ‐3.33 [‐4.88, ‐1.78] |
14.5 QLQ‐C30 subscale change | 1 | Mean Difference (IV, Random, 95% CI) | Subtotals only | |
14.5.1 Up to 12 weeks' follow‐up | 1 | 57 | Mean Difference (IV, Random, 95% CI) | 4.32 [‐12.18, 20.82] |
14.6 QLQ‐C30 subscale follow‐up values | 2 | Mean Difference (IV, Random, 95% CI) | Subtotals only | |
14.6.1 Up to 12 weeks' follow‐up | 2 | 183 | Mean Difference (IV, Random, 95% CI) | ‐3.11 [‐4.66, ‐1.57] |
14.6.2 More than 12 weeks' less than 6 months' follow‐up | 1 | 105 | Mean Difference (IV, Random, 95% CI) | 1.30 [‐10.72, 13.32] |
Comparison 15. Social functioning.
Outcome or subgroup title | No. of studies | No. of participants | Statistical method | Effect size |
---|---|---|---|---|
15.1 Overall social functioning change | 8 | Std. Mean Difference (IV, Random, 95% CI) | Subtotals only | |
15.1.1 Up to 12 weeks' follow‐up | 5 | 386 | Std. Mean Difference (IV, Random, 95% CI) | 0.45 [0.02, 0.87] |
15.1.2 More than 12 weeks' less than 6 months' follow‐up | 1 | 52 | Std. Mean Difference (IV, Random, 95% CI) | 0.37 [‐0.18, 0.92] |
15.1.3 6 months' follow‐up | 2 | 110 | Std. Mean Difference (IV, Random, 95% CI) | 0.49 [0.11, 0.87] |
15.1.4 More than 6 months' follow‐up | 1 | 121 | Std. Mean Difference (IV, Random, 95% CI) | 0.11 [‐0.25, 0.47] |
15.2 Overall social functioning follow‐up values | 14 | Std. Mean Difference (IV, Random, 95% CI) | Subtotals only | |
15.2.1 Up to 12 weeks' follow‐up | 10 | 530 | Std. Mean Difference (IV, Random, 95% CI) | 0.23 [‐0.02, 0.48] |
15.2.2 More than 12 weeks' less than 6 months' follow‐up | 4 | 312 | Std. Mean Difference (IV, Random, 95% CI) | 0.08 [‐0.16, 0.31] |
15.2.3 6 months' follow‐up | 2 | 110 | Std. Mean Difference (IV, Random, 95% CI) | 0.33 [‐0.04, 0.71] |
15.2.4 More than 6 months' follow‐up | 1 | 121 | Std. Mean Difference (IV, Random, 95% CI) | 0.14 [‐0.21, 0.50] |
15.3 FACT social functioning subscale change | 5 | Mean Difference (IV, Random, 95% CI) | Subtotals only | |
15.3.1 Up to 12 weeks' follow‐up | 3 | 313 | Mean Difference (IV, Random, 95% CI) | 1.73 [‐0.33, 3.79] |
15.3.2 More than 12 weeks' less than 6 months' follow‐up | 1 | 52 | Mean Difference (IV, Random, 95% CI) | 1.10 [‐0.45, 2.65] |
15.3.3 6 months' follow‐up | 2 | 110 | Mean Difference (IV, Random, 95% CI) | 2.14 [0.25, 4.02] |
15.4 FACT social functioning subscale follow‐up values | 8 | Mean Difference (IV, Random, 95% CI) | Subtotals only | |
15.4.1 Up to 12 weeks' follow‐up | 5 | 261 | Mean Difference (IV, Random, 95% CI) | 1.77 [0.56, 2.97] |
15.4.2 More than 12 weeks' less than 6 months' follow‐up | 3 | 207 | Mean Difference (IV, Random, 95% CI) | 0.19 [‐1.20, 1.58] |
15.4.3 6 months' follow‐up | 1 | 74 | Mean Difference (IV, Random, 95% CI) | 1.70 [‐1.11, 4.51] |
15.5 QLQ‐C30 social functioning subscale change | 2 | Mean Difference (IV, Random, 95% CI) | Subtotals only | |
15.5.1 Up to 12 weeks' follow‐up | 2 | 73 | Mean Difference (IV, Random, 95% CI) | 8.56 [‐2.04, 19.16] |
15.6 QLQ‐C30 social function subscale follow‐up values | 4 | Mean Difference (IV, Random, 95% CI) | Subtotals only | |
15.6.1 Up to 12 weeks' follow‐up | 4 | 256 | Mean Difference (IV, Random, 95% CI) | 0.41 [‐10.30, 11.11] |
15.6.2 More than 12 weeks' less than 6 months' follow‐up | 1 | 105 | Mean Difference (IV, Random, 95% CI) | 3.50 [‐6.42, 13.42] |
15.7 MOS SF‐36 subscale change | 2 | Mean Difference (IV, Random, 95% CI) | Subtotals only | |
15.7.1 Up to 12 weeks' follow‐up | 1 | 58 | Mean Difference (IV, Random, 95% CI) | 4.21 [‐7.83, 16.25] |
15.7.2 6 months' follow‐up | 1 | 74 | Mean Difference (IV, Random, 95% CI) | 0.60 [‐3.57, 4.77] |
15.8 MOS SF‐36 subscale follow‐up values | 2 | Mean Difference (IV, Random, 95% CI) | Subtotals only | |
15.8.1 Up to 12 weeks' follow‐up | 1 | 58 | Mean Difference (IV, Random, 95% CI) | 5.44 [‐5.79, 16.67] |
15.8.2 6 months' follow‐up | 1 | 74 | Mean Difference (IV, Random, 95% CI) | ‐1.00 [‐5.95, 3.95] |
15.9 Social barriers change | 1 | Mean Difference (IV, Random, 95% CI) | Subtotals only | |
15.9.1 More than 6 months' follow‐up | 1 | 121 | Mean Difference (IV, Random, 95% CI) | 3.70 [‐8.38, 15.78] |
15.10 Social barriers follow‐up values | 1 | Mean Difference (IV, Random, 95% CI) | Subtotals only | |
15.10.1 More than 6 months' follow‐up | 1 | 121 | Mean Difference (IV, Random, 95% CI) | 0.80 [‐1.16, 2.76] |
15.11 BIQ social body image subscale follow‐up values | 1 | Mean Difference (IV, Random, 95% CI) | Subtotals only | |
15.11.1 Up to 12 weeks' follow‐up | 1 | 57 | Mean Difference (IV, Random, 95% CI) | ‐1.35 [‐2.50, ‐0.20] |
Comparison 16. Spirituality.
Outcome or subgroup title | No. of studies | No. of participants | Statistical method | Effect size |
---|---|---|---|---|
16.1 FACT spirituality subscale change | 1 | Mean Difference (IV, Random, 95% CI) | Subtotals only | |
16.1.1 Up to 12 months' follow‐up | 1 | 167 | Mean Difference (IV, Random, 95% CI) | 0.05 [‐2.89, 2.99] |
16.2 FACT spirituality subscale follow‐up values | 3 | Mean Difference (IV, Random, 95% CI) | Subtotals only | |
16.2.1 Up to 12 weeks' follow‐up | 3 | 194 | Mean Difference (IV, Random, 95% CI) | 1.51 [‐3.64, 6.65] |
Characteristics of studies
Characteristics of included studies [ordered by study ID]
Bai 2004.
Study characteristics | ||
Methods | Study design: RCT Number randomized: 45; 24 to the exercise group and 21 to the control group Study start, 2003; stop date, not reported Length of intervention: 3 months Length of follow‐up: to end of the intervention |
|
Participants | Type cancer: nasopharyngeal carcinoma Time since cancer diagnosis: unclear Time beyond active treatment: immediately after radiation therapy Inclusion criteria:
Eligibility criterion related to interest or ability to exercise, or both:
Exclusion criteria:
Gender, n: male, 26, female, 19 Current age: 23 to 65 years old Age at cancer diagnosis: not reported Ethnicity/race: 100% Asian Education level: not reported SES: not reported Employment status: not reported Comorbidities: not reported Past exercise history: not reported |
|
Interventions | 24 participants assigned to the exercise intervention, including:
Type exercise (aerobic/anaerobic): aerobic and anaerobic Intensity of experimental exercise intervention: low to moderate Frequency: once a day Duration of individual sessions: not reported Duration of exercise program: 3 months Total number of exercise sessions: unclear Participants were monitored every 2 weeks Format: individual Facility: not reported Professionally led: not reported Adherence: not reported Control group: 21 participants assigned to control group, including
Contamination of control group: none |
|
Outcomes | Outcomes: QoL and physiologic outcomes, including:
Outcomes were measured at baseline and at 3 months:
Adverse events: none reported |
|
Notes | Country: China Funding: not reported Correspondence with investigator sought |
|
Risk of bias | ||
Bias | Authors' judgement | Support for judgement |
Random sequence generation (selection bias) | Unclear risk | The generation of the random sequence was not described |
Allocation concealment (selection bias) | Unclear risk | Whether the treatment assignment was concealed from study personnel and participants was not described |
Blinding of participants and personnel (performance bias) All outcomes | High risk | Owing to the nature of the intervention, it was not possible to blind the participants; however, it is unclear whether the outcome was influenced by a lack of masking |
Blinding of outcome assessment (detection bias) All outcomes | High risk | Study personnel and outcome assessors were not masked or blinded to the study interventions |
Incomplete outcome data (attrition bias) All outcomes | Low risk | No study participants were lost to follow‐up and all were included in the analyses |
Selective reporting (reporting bias) | Low risk | There appears to be no selective reporting of outcomes |
Other bias | Low risk | The trial appears to be free of other problems that could put it at a high risk of bias |
Banasik 2011.
Study characteristics | ||
Methods | Study design: RCT Number randomized: 18; 9 to the exercise group and 9 to the control group Study start and stop dates: not reported Length of intervention: 8 weeks Length of follow‐up: to end of the intervention |
|
Participants | Type cancer: breast cancer, stages II to IV Time since cancer diagnosis: not reported Time beyond active treatment: at least 2 months' post‐treatment Inclusion criteria:
Eligibility criterion related to interest or ability to exercise, or both:
Exclusion criteria:
Gender: female Current age, mean (SD) years:
Age at cancer diagnosis: not reported Ethnicity/race: 100% Caucasian Education level: not reported SES, (n):
Employment status: not reported Comorbidities: not reported Past exercise history: not reported On hormone therapy: not reported |
|
Interventions | 9 participants assigned to the exercise intervention, including:
Type exercise (aerobic/anaerobic): aerobic Intensity of experimental exercise intervention: mild Frequency: twice per week Duration of individual sessions: 90 minutes Duration of exercise program: 8 weeks Total number of exercise sessions: 16 Format: group Facility: facility Professionally led: professionally led by expert Iyengar yoga instructors 9 participants assigned to control group, including:
Adherence: 7 women in the yoga group who completed the study attended an average of 14 of 16 possible yoga sessions (87.5%) with a range of 12 to 15 sessions Contamination of control group: not reported |
|
Outcomes | Outcomes include QoL, measured using the FACT‐B and subscales, including:
Outcomes were measured at baseline and at 8 weeks:
Subgroup analysis: not reported Adverse events: no cancer recurrences or adverse events reported |
|
Notes | Country: US Funding: University of Washington Center for Women's Health and Gender Research, Washington State University Cancer Prevention and Research Center, and the Washington State University College of Nursing |
|
Risk of bias | ||
Bias | Authors' judgement | Support for judgement |
Random sequence generation (selection bias) | Unclear risk | The generation of the random sequence was not described |
Allocation concealment (selection bias) | Unclear risk | Whether the treatment assignment was concealed from study personnel and participants was not described |
Blinding of participants and personnel (performance bias) All outcomes | High risk | Owing to the nature of the intervention, it was not possible to blind the participants; however, it is unclear whether the outcome was influenced by a lack of masking |
Blinding of outcome assessment (detection bias) All outcomes | High risk | Study personnel and outcome assessors were not masked or blinded to the study interventions |
Incomplete outcome data (attrition bias) All outcomes | High risk | There was no ITT analysis and it is unclear how missing data were handled. 2 participants in each group withdrew and no reason was given for withdrawal |
Selective reporting (reporting bias) | Low risk | There appears to be no selective reporting of outcomes |
Other bias | High risk | The small sample size and lack of description of the recruitment and selection of study participants could give rise to additional biases |
Berglund 1994.
Study characteristics | ||
Methods | Study design: RCT Number randomized: 199; 98 to the exercise group and 101 to the control group Study start and stop dates: not reported Length of intervention: 7 weeks Length of follow‐up: 1 year after end of the intervention |
|
Participants | Type cancer: 80% breast cancer, 7‐8% ovarian cancer, remaining were other types Time since cancer diagnosis: not reported Time beyond active treatment: not reported Inclusion criteria:
Eligibility criterion related to interest or ability to exercise, or both:
Exclusion criteria:
Gender: not reported Current age: not reported Age at cancer diagnosis: not reported Ethnicity/race: not reported Education level: not reported SES: not reported Employment status: not reported Comorbidities: not reported Past exercise history: not reported On hormone therapy: not reported |
|
Interventions | 98 participants assigned to the exercise intervention, including:
Type exercise (aerobic/anaerobic): aerobic Intensity of experimental exercise intervention: not reported Frequency: twice per week during the first 4 weeks (once for physical training and once for information), then once per week for coping skills training Duration of individual sessions: not reported Duration of exercise program: 7 weeks Total number of exercise sessions: 11 Format: group Facility: facility Professionally led: professionally led by an oncology nurse 101 participants assigned to control group, including:
Adherence: the mean absenteeism among participants was 1 session, representing a variation of the number of participants per session between 3 and 7 (mean 4.9). Contamination of control group: not reported |
|
Outcomes | No primary outcome identified. HRQoL outcomes included:
Physical outcomes included:
Outcomes were measured at baseline; end of the intervention; and 3 months, 6 months, and 12 months:
Subgroup analysis: not reported Adverse events: no cancer recurrences or adverse events reported |
|
Notes | Country: Sweden Funding: Swedish Cancer Foundation |
|
Risk of bias | ||
Bias | Authors' judgement | Support for judgement |
Random sequence generation (selection bias) | Low risk | Used Efron's method of randomization of small samples (Hjelm‐Karlsson 1991) |
Allocation concealment (selection bias) | Unclear risk | Whether the treatment assignment was concealed from study personnel and participants was not described |
Blinding of participants and personnel (performance bias) All outcomes | High risk | Owing to the nature of the intervention, it was not possible to blind the participants; however, it is unclear whether the outcome was influenced by a lack of masking |
Blinding of outcome assessment (detection bias) All outcomes | High risk | Study personnel and outcome assessors were not masked or blinded to the study interventions |
Incomplete outcome data (attrition bias) All outcomes | High risk | There was no ITT analysis, it is unclear how missing values were handled, there were large losses to follow‐up |
Selective reporting (reporting bias) | Low risk | There appears to be no selective reporting of outcomes |
Other bias | Low risk | The trial appears to be free of other problems that could put it at a high risk of bias |
Bourke 2011.
Study characteristics | ||
Methods | Study design: RCT Number randomized: 18; 9 to the exercise group and 9 to the control group Study start and stop dates: not reported Length of intervention: 12 weeks Length of follow‐up: to end of the intervention |
|
Participants | Type cancer: colon cancer, Dukes stages A to C Time since cancer diagnosis: not reported Time beyond active treatment: 6 to 24 month
Inclusion criteria:
Eligibility criterion related to interest or ability to exercise, or both:
Exclusion criteria:
Gender, n:
Current age, mean (SD) years:
Age at cancer diagnosis: not reported Ethnicity/race: not reported Education level: not reported SES: not reported Employment status: not reported Comorbidities: not reported Past exercise history: not reported On hormone therapy: not reported BMI, mean (SD) kg/m2:
|
|
Interventions | 9 participants assigned to the exercise intervention, including:
Type exercise (aerobic/anaerobic): aerobic and anaerobic Intensity of experimental exercise intervention: 55% to 85% of age predicted maximum HR Frequency: twice per week of supervised sessions and once per week at home for first 6 weeks, then once per week supervised session and twice per week at home for last 6 weeks Duration of individual sessions: 30 minutes and time necessary to complete resistance training Duration of exercise program: 12 weeks Total number of exercise sessions: 36 Format: group and individual Facility: Northern General Hospital, Sheffield, UK Professionally led: professionally led by experienced exercise physiologist at facility 9 participants assigned to control group, including:
Adherence: 90% attendance (completed 146 of 162 sessions) and 94% compliance Contamination of control group: reported no significant difference in exercise behavior as assessed by Godin LSI (15; 95% CI 2 to 28) |
|
Outcomes | No primary outcome identified. QoL outcomes included:
Physical outcomes included:
Outcomes were measured at baseline and at 12 weeks:
Subgroup analysis: none reported Adverse events: not reported |
|
Notes | Country: UK Funding: Sheffield Hallam University |
|
Risk of bias | ||
Bias | Authors' judgement | Support for judgement |
Random sequence generation (selection bias) | Low risk | Sequence was generated via code numbers using nQuery statistical software |
Allocation concealment (selection bias) | Low risk | Allocation was undertaken by a senior academic who was not directly involved in the recruitment or assessment of patients. The randomization sequence was not disclosed to the researcher responsible for the day‐to‐day running of the trial until patients had completed the baseline assessments |
Blinding of participants and personnel (performance bias) All outcomes | High risk | Owing to the nature of the intervention, it was not possible to mask or blind the participants; however, it is unclear whether the lack of masking or blinding could influence the outcomes |
Blinding of outcome assessment (detection bias) All outcomes | High risk | The researcher responsible for the day‐to‐day running of the trial was informed of the randomization after collection of the baseline data. Other study personnel were not masked or blinded |
Incomplete outcome data (attrition bias) All outcomes | Low risk | ITT analysis was used to compare participants in the groups they were randomly assigned and data were carried over from previous visits in cases of withdrawal of participants. One participant in the intervention group withdrew owing to a cerebrovascular accident |
Selective reporting (reporting bias) | Low risk | There appears to be no selective reporting of outcome |
Other bias | Low risk | The trial appears to be free of other problems that could put it at a high risk of bias |
Burnham 2002.
Study characteristics | ||
Methods | Study design: RCT (participants matched on KPS and QoL) Number randomized: 21; 7 to a low‐intensity exercise group, 7 to a moderate‐intensity exercise group, and 7 to the control group Study start and stop dates: not reported Length of intervention: 10 weeks Length of follow‐up: to end of the intervention |
|
Participants | Type cancer: breast or colon cancer; 5 breast cancer and 1 colon cancer in each of the 3 treatment groups Time since cancer diagnosis: not reported Time beyond active treatment, mean (SD) months:
Inclusion criteria:
Eligibility criterion related to interest or ability to exercise, or both:
Exclusion criteria:
Gender: 15 female and 3 male Current age: 40 to 65 years of age, mean (SD) years:
Age at cancer diagnosis: not reported Ethnicity/race: not reported Education level: not reported SES: not reported Employment status: not reported Comorbidities: not reported Past exercise history: not reported On hormone therapy: not reported |
|
Interventions | 7 participants assigned to the low‐intensity exercise group 7 participants assigned to the moderate‐intensity exercise group Type of exercise (aerobic/anaerobic): aerobic Intensity of experimental exercise intervention: low intensity (25% to 35% of HR reserve) or moderate intensity (40% to 50% of HR reserve) Frequency: 3 times per week Duration of individual sessions: initially 14 minutes, divided equally among the 3 exercise modalities (4 minutes and 40 seconds on the treadmill, stair‐climber, and stationary bicycle in a rotational order). Increased by 2 minutes per week, up to 32 minutes at week 10 Duration of exercise program: 10 weeks Total number of exercise sessions: 30 Format: group Facility: facility Professionally led: unclear Adherence: 95% 7 participants assigned to the control, including:
Contamination of control group: 1 control participant increased exercise. That person and the match in the low‐ and moderate‐intensity exercise groups were removed from the study |
|
Outcomes | Primary outcome: QoL outcomes, including:
Secondary outcomes: physiologic measures, including:
Outcomes were measured at baseline, 5 and 10 weeks:
Subgroup analysis by demographics Adverse events: none reported |
|
Notes | Country: US Funding: not reported |
|
Risk of bias | ||
Bias | Authors' judgement | Support for judgement |
Random sequence generation (selection bias) | Unclear risk | The generation of the random sequence was not described |
Allocation concealment (selection bias) | Unclear risk | Whether the treatment assignment was concealed from study personnel and participants was not described |
Blinding of participants and personnel (performance bias) All outcomes | High risk | Owing to the nature of the intervention, it was not possible to blind the participants; however, it is unclear whether the outcome was influenced by a lack of masking |
Blinding of outcome assessment (detection bias) All outcomes | High risk | Study personnel and outcome assessors were not masked or blinded to the study interventions |
Incomplete outcome data (attrition bias) All outcomes | High risk | "No subject in any group withdrew from the study...", but "One subject was excluded from the control group when a post‐study questionnaire revealed that she had engaged in significant exercise training during the course of the study... To maintain the matched group status, the two subjects matched with the excluded control subject were also removed from the analysis" |
Selective reporting (reporting bias) | Low risk | There appears to be no selective reporting of outcomes |
Other bias | Low risk | The trial appears to be free of other problems that could put it at a high risk of bias |
Cadmus 2009.
Study characteristics | ||
Methods | Study design: RCT Number randomized: 75; 37 to the exercise group and 38 to the control group Study start and stop dates: March 2004 to July 2006 Length of intervention: 6 months Length of follow‐up: to end of the intervention |
|
Participants | Type cancer: breast cancer, stage 0 to IIIA Time since cancer diagnosis, mean (SD) weeks:
Time beyond active treatment: at least 12 months Inclusion criteria:
Eligibility criteria related to interest or ability to exercise, or both:
Exclusion criteria:
Gender: female Current age, mean (SD) years:
Age at cancer diagnosis: not reported Ethnicity/race: 84% non‐Hispanic white for both groups Education level:
SES: not reported Employment status: not reported Comorbidities: none Past exercise history, mean (SD):
On hormone therapy:
|
|
Interventions | 37 participants assigned to the exercise intervention, including:
Type exercise (aerobic/anaerobic): aerobic Intensity of the experimental exercise intervention: Polar HR monitors to maintain the goal of 60% to 80% of predicted maximal HR Frequency: 5 days per week Duration of individual sessions: 30 minutes Duration of exercise program: 6 months Total number of exercise sessions: 120 Format: individual Facility: 2 days/week at home and 3 days/week at a facility (local health club) Professionally led: professionally led by an exercise physiologist Adherence: average 123 minutes/week (SD 52) of moderate to vigorous intensity sports/recreational activity (range: 0 to 637)
38 participants assigned to control group, including:
Contamination of control group: not reported |
|
Outcomes | Outcomes: QoL and physiologic outcomes, including:
Outcomes were measured at baseline and 6 months:
Adverse events: none reported |
|
Notes | Country: US Funding: Lance Armstrong Foundation, American Cancer Society, Susan G. Komen. In part by the National Center of Research Resources (NIH) |
|
Risk of bias | ||
Bias | Authors' judgement | Support for judgement |
Random sequence generation (selection bias) | Low risk | Computer generated randomization code |
Allocation concealment (selection bias) | Low risk | "The randomization code was obtained by the principal investigator (who was not involved in recruitment or data collection) only after baseline measures for that individual had been completed and staff conducting clinic visits did not have access to the randomization program" |
Blinding of participants and personnel (performance bias) All outcomes | High risk | Owing to the nature of the intervention, it was not possible to blind the participants; however, it is unclear whether the outcome was influenced by a lack of masking |
Blinding of outcome assessment (detection bias) All outcomes | High risk | Study personnel and outcome assessors were not masked or blinded to the study interventions |
Incomplete outcome data (attrition bias) All outcomes | Low risk | ITT analysis performed |
Selective reporting (reporting bias) | Low risk | There appears to be no selective reporting of outcomes |
Other bias | Low risk | The trial appears to be free of other problems that could put it at a high risk of bias |
Cho 2006.
Study characteristics | ||
Methods | Study design: quasi‐RCT Number randomized: 65; 34 to the exercise group and 31 to the control group Study start and stop dates: October 2002 to June 2003 Length of intervention: 10 weeks Length of follow‐up: to end of the intervention |
|
Participants | Type cancer: breast cancer, stage I to II Time since cancer diagnosis: mean 14.8 months Time beyond active treatment, mean (SD) months:
Inclusion criteria:
Eligibility criterion related to interest or ability to exercise, or both:
Exclusion criteria:
Gender: female Current age, mean (SD) years:
Age at cancer diagnosis: not reported Ethnicity/race: not reported Education level, n (%):
SES: not reported Employment status: not reported Comorbidities: not reported Past exercise history: not reported On hormone therapy, n (%):
|
|
Interventions | 34 participants assigned to the exercise intervention, including:
Type exercise (aerobic/anaerobic): aerobic Intensity of experimental exercise intervention: to maximum HR of 40% to 60% Frequency: twice per week Duration of individual session: 90 minutes Duration of exercise program: 10 weeks Total number of exercise sessions: 20 Format: individual and group Facility: home and tertiary care hospital Professionally led: registered fitness instructor Adherence: not reported Co‐intervention: none Control group: 31 assigned to control group, consisting of
Contamination of control group: not reported |
|
Outcomes | Outcomes: QoL and physiologic outcomes, including:
Outcomes were measured at baseline and 10 weeks:
Adverse events: recurrence of cancer (n = 3) |
|
Notes | Country: South Korea Funding: not reported |
|
Risk of bias | ||
Bias | Authors' judgement | Support for judgement |
Random sequence generation (selection bias) | High risk | Stated that it is a quasi‐randomized study but details not given |
Allocation concealment (selection bias) | Unclear risk | Whether the treatment assignment was concealed from study personnel and participants was not described |
Blinding of participants and personnel (performance bias) All outcomes | High risk | Owing to the nature of the intervention, it was not possible to blind the participants; however, it is unclear whether the outcome was influenced by a lack of masking |
Blinding of outcome assessment (detection bias) All outcomes | High risk | Study personnel and outcome assessors were not masked or blinded to the study interventions |
Incomplete outcome data (attrition bias) All outcomes | High risk | 10 participants not included in analyses, 3 participants had an adverse event and 7 participants withdrew |
Selective reporting (reporting bias) | Low risk | There appears to be no selective reporting of outcomes |
Other bias | Low risk | The trial appears to be free of other problems that could put it at a high risk of bias |
Cohen 2004.
Study characteristics | ||
Methods | Study design: RCT Number randomized: 39; 20 to the exercise group and 19 to the control group Study start and stop dates: not reported Length of intervention: 7 weeks Length of follow‐up: 1 week, 1 month and 3 months after the last session |
|
Participants | Type cancer: lymphoma
Time since cancer diagnosis: not reported Time beyond active treatment: not reported Inclusion criteria:
Eligibility criterion related to interest or ability to exercise, or both:
Exclusion criteria:
Gender: 12 female and 32 male Current age, mean, 51 years Age at cancer diagnosis: not reported Ethnicity/race: not reported Education level: not reported SES: not reported Employment status: not reported Comorbidities: not reported Past exercise history, n:
On hormone therapy, n:
|
|
Interventions | 19 participants assigned to the Tibetan yoga exercise intervention, including:
The exercises are simple motions done with specific breathing patterns Type exercise (aerobic/anaerobic): aerobic Intensity of experimental exercise intervention: mild Frequency: once per week, with recommendation to practice techniques at home at least daily Duration of individual session: not reported Duration of exercise program: 7 weeks Total number of exercise sessions: 7 Format: group and individual Facility: tertiary care hospital and home Professionally led: Tibetan yoga instructor Adherence: all participants attended at least 1 yoga session; 6 (32%) attended all 7 sessions; 5 (26%) attended 5 or 6 sessions; 6 (32%) attended 2 or 3 sessions; and 2 (10%) attended only 1 session Co‐intervention: none Control group: 19 assigned to control group, consisting of
Contamination of control group: not reported |
|
Outcomes | Outcomes: QoL outcomes, including:
Outcomes were measured at baseline and 1 week, 1 month, and 3 months after the last yoga session:
Adverse events: not reported |
|
Notes | Country: US Funding: Bruce S. Gelb Foundation |
|
Risk of bias | ||
Bias | Authors' judgement | Support for judgement |
Random sequence generation (selection bias) | Low risk | "Group assignment was conducted sequentially using minimization" |
Allocation concealment (selection bias) | Low risk | "The allocation process was concealed from all investigators because all the relevant information was entered into a computer program and group assignment was determined by the program" |
Blinding of participants and personnel (performance bias) All outcomes | High risk | Owing to the nature of the intervention, it was not possible to blind the participants; however, it is unclear whether the outcome was influenced by a lack of masking |
Blinding of outcome assessment (detection bias) All outcomes | High risk | Study personnel and outcome assessors were not masked or blinded to the study interventions |
Incomplete outcome data (attrition bias) All outcomes | High risk | Although it was stated that only 1 study participant dropped out before the end of the study, data were presented only for 30 study participants, not 38 who completed the study |
Selective reporting (reporting bias) | Low risk | There is no evidence of selective reporting of outcomes |
Other bias | Low risk | The trial appears to be free of other problems that could put it at a high risk of bias |
Courneya 2003a.
Study characteristics | ||
Methods | Study design: cluster RCT, where clusters were psychotherapy classes Number randomized: 108; 60 (in 11 classes) to the exercise group and 48 (in 11 classes) to the control group Study start and stop dates: the group psychotherapy classes were conducted between September 1998 and April 2001 Length of intervention: 10 weeks Length of follow‐up: to end of the intervention |
|
Participants | Type cancer: breast cancer, 40.6%; colon cancer, 9.4%; ovarian cancer, 5.2%; stomach cancer, 4.2%, melanoma, 4.2%; Hodgkin disease, 3.1%; NHL, 3.1%; brain cancer, 3.1%; lung cancer, 3.1%; other, 15.6%; missing, 8.3% Time since cancer diagnosis, mean (SD) months:
Time beyond active treatment: not reported, although 43.5% of participants in exercise group and 45.2% of participants in control group were still receiving treatment Inclusion criteria:
Eligibility criterion related to interest or ability to exercise, or both:
Exclusion criteria:
Gender, %:
Current age, mean (SD) years:
Age at cancer diagnosis: not reported Ethnicity/race: not reported Education level, % completing university:
SES, % with family income > USD40,000:
Employment status, % currently employed:
Comorbidities: not reported Past exercise history, mean (SD) minutes participants engaged in mild, moderate, or strenuous exercise:
On hormone therapy: not reported |
|
Interventions | 60 participants assigned to the personalized exercise intervention, including:
Type exercise (aerobic/anaerobic): aerobic Intensity of experimental exercise intervention: goal was to achieve 65% to 75% of estimated HR maximum as soon as safely possible Frequency: 3 to 5 times per week Duration of individual sessions: 20 to 30 minutes Duration of exercise program: 10 weeks Total number of exercise sessions: variable, but maximum would be 50 sessions Format: individual Facility: home, with group psychotherapy classes offered in facility (Cross Cancer Institute) Not professionally led 48 participants assigned to the control group, including:
Adherence: 51/60 participants completed the 10‐week intervention; 43/51 (84.3%) achieved the minimum exercise prescription of 60 minutes of moderate to strenuous exercise per week and 16/51 (31.4%) achieved the optimum exercise prescription of 150 minutes of moderate to strenuous exercise per week. Total minutes of exercise, mean (SD) 196.65 (149.56) minutes Contamination of control group: mean (SD) minutes when participants in the control group participated in exercise 100.91 (104.24) minutes |
|
Outcomes | No primary outcome was identified. QoL outcomes included:
Outcomes were measured at baseline and 10 weeks:
Subgroup analysis: several subgroup analyses were prespecified and conducted Adverse events: none reported |
|
Notes | Country: Canada Funding: NIH, Canadian Institutes of Health Research, NCIC, CCS, CCS/NCIC Sociobehavioral Cancer Research Network |
|
Risk of bias | ||
Bias | Authors' judgement | Support for judgement |
Random sequence generation (selection bias) | Low risk | Allocation sequence was generated using a random numbers table |
Allocation concealment (selection bias) | High risk | Allocation was not completely concealed. It was concealed from the fitness appraiser but not from other study personnel |
Blinding of participants and personnel (performance bias) All outcomes | High risk | Owing to the nature of the intervention, it was not possible to blind the participants; however, it is unclear whether the outcome was influenced by a lack of masking |
Blinding of outcome assessment (detection bias) All outcomes | High risk | Study personnel and outcome assessors were not masked or blinded to the study interventions |
Incomplete outcome data (attrition bias) All outcomes | High risk | Although stated that analyses were conducted on an ITT basis, the treatment of missing data was not described. There was substantial attrition from the study in both study groups |
Selective reporting (reporting bias) | Low risk | There is no evidence of selective reporting of outcomes |
Other bias | Low risk | The trial appears to be free of other problems that could put it at a high risk of bias |
Courneya 2003b.
Study characteristics | ||
Methods | Study design: RCT Number randomized: 102; 69 to the exercise group and 33 to a waiting list control group Study start and stop dates: October 1998 to April 2001 Length of intervention: 16 weeks Length of follow‐up: to end of the intervention |
|
Participants | Type cancer: colorectal cancer Time since cancer diagnosis: not reported Time beyond active treatment: surgery within the last 3 months Inclusion criteria:
Eligibility criterion related to interest or ability to exercise, or both:
Gender:
Current age, mean (SD) years:
Age at cancer diagnosis: not reported Ethnicity/race: not reported Education level:
SES:
Employment status:
Comorbidities: not reported Past exercise history: mean (SD) number of minutes of exercise per week:
On hormone therapy: not reported |
|
Interventions | 69 participants assigned to the experimental exercise intervention, including:
Type exercise (aerobic/anaerobic): unclear Intensity of experimental exercise intervention: to 65% to 75% of HR Frequency: 3 to 5 times per week Duration of session: 20 to 30 minutes Duration of exercise program: 16 weeks Total number of exercise sessions: 48 to 80 Format: individual Facility: home based Not professionally led, but designed by professional Adherence: overall adherence, 75.8% Calculated as effect size (difference in variable between groups divided by SD of control group):
% > 60 moderate/strenuous, 75.8% % > 150 moderate/strenuous, 41.9% 33 participants assigned to control:
Contamination of control group: overall, 51.6% Calculated as effect size (difference in variable between groups divided by SD of control group) % > 60 moderate/strenuous, 51.6% % > 150 moderate/strenuous, 32.3% |
|
Outcomes | Primary outcome: QoL, measured at week 16 using:
Secondary outcomes, all measured at 16 weeks included:
Outcomes were measured at baseline and end of the intervention:
Adverse events: none reported |
|
Notes | Study country: Canada Funding source: NCIC and Alberta Heritage Foundation for Medical Research; Canadian Institutes of Health Research, CCS, Sociobehavioral Cancer Research Network |
|
Risk of bias | ||
Bias | Authors' judgement | Support for judgement |
Random sequence generation (selection bias) | Low risk | Used a "random‐numbers table" |
Allocation concealment (selection bias) | Unclear risk | Whether the treatment assignment was concealed from study personnel and participants was not described |
Blinding of participants and personnel (performance bias) All outcomes | High risk | Owing to the nature of the intervention, masking or blinding of study participants was not possible; however, it is unclear whether the lack of masking could influence the outcomes |
Blinding of outcome assessment (detection bias) All outcomes | Low risk | Fitness test conducted by certified fitness consultant blinded to the experimental group |
Incomplete outcome data (attrition bias) All outcomes | Low risk | Reasons for exclusions presented |
Selective reporting (reporting bias) | Low risk | There appears to be no selective reporting of outcomes |
Other bias | Low risk | The trial appears to be free of other problems that could put it at a high risk of bias |
Courneya 2003c.
Study characteristics | ||
Methods | Study design: RCT Number randomized: 53; 25 to the exercise group and 28 to the control group Study start and stop dates: recruitment from May 2001 to June 2001 Length of intervention: 15 weeks Length of follow‐up: to end of the intervention |
|
Participants | Type cancer: breast cancer, n (%) Cancer stage, n (%):
Time since cancer diagnosis: not reported Time beyond active treatment: not reported Inclusion criteria:
Eligibility criteria related to interest or ability to exercise, or both:
Exclusion criteria:
Gender: female Current age, mean (SD) years:
Age at cancer diagnosis: not reported Ethnicity/race: not reported Education level, n (%)
Household income > USD60,000, n (%):
Employment status: employed full time, n (%)
Comorbidities: none reported Past exercise history, mean (SD) minutes:
On hormone therapy: exercise, 11 (46); control, 13 (46) |
|
Interventions | 25 participants assigned to the exercise intervention, including:
Type exercise (aerobic/anaerobic): aerobic Intensity of experimental exercise intervention: 70% to 75% maximal oxygen consumption in untrained subjects Frequency: 3 times per week Duration of sessions: 15 minutes for weeks 1 to 3, then increased by 5 minutes per week to 35 minutes at weeks 13 to 15. A 5‐minute warm‐up and cool‐down period was included Duration of exercise program: 15 weeks Total number of exercise sessions: 45 Format: unclear Facility: facility Professionally led: sessions were supervised by exercise physiologists Adherence: the exercise group completed 98.4% (44.3 of 45) of the prescribed exercise sessions Co‐intervention: none Control group: waiting list Contamination of control group: non–protocol‐related exercise was < 15 minutes of moderate to strenuous exercise per week and was not different between groups |
|
Outcomes | Primary outcomes included:
Secondary outcomes, included:
Outcomes were measured at baseline and 15 weeks:
Adverse events:
|
|
Notes | Country: Canada Funding: NCIC, CCS, Canadian Institutes of Health Research, Izaak Walton Killiam Memorial Scholarship, Alberta Heritage Foundation for Medical Research studentship |
|
Risk of bias | ||
Bias | Authors' judgement | Support for judgement |
Random sequence generation (selection bias) | Low risk | Random‐numbers table |
Allocation concealment (selection bias) | Low risk | The allocation sequence and group assignments were generated by a research assistant and then enclosed in sequentially numbered and sealed envelopes. The contents of the envelopes were concealed from the project director, who assigned participants to groups |
Blinding of participants and personnel (performance bias) All outcomes | High risk | Owing to the nature of the intervention, masking or blinding of study participants was not possible; however, it is unclear whether the lack of masking could influence the outcomes |
Blinding of outcome assessment (detection bias) All outcomes | Unclear risk | Not possible to blind study participants for self‐report measures. Exercise physiologists were blinded for physical outcome measures |
Incomplete outcome data (attrition bias) All outcomes | Low risk | 1 study participant withdrew from the exercise group and 2 from the control group; they were not included in the physical outcome analyses. The QoL analyses included all but the 1 study participant who had withdrawn from the exercise group |
Selective reporting (reporting bias) | Low risk | There appears to be no selective reporting of outcomes |
Other bias | Low risk | The trial appears to be free of other problems that could put it at a high risk of bias |
Courneya 2009.
Study characteristics | ||
Methods | Study design: RCT Number randomized: 122; 60 to an exercise group and 62 to the control group Study start and stop dates: 2005 to 2008 Length of intervention: 12 weeks Length of follow‐up: 6 months |
|
Participants | Type cancer: lymphoma Stage/type cancer, n (%):
Time since cancer diagnosis, mean (SD) months since diagnosis:
Time beyond active treatment: not reported, but some participants still being actively treated Inclusion criteria:
Eligibility criterion related to interest or ability to exercise, or both:
Exclusion criteria:
Gender, n (%):
Current age, mean (range) years:
Age at cancer diagnosis: not reported Ethnicity/race: not reported Education level, completed university, n (%):
SES, income > USD60,000 per year n (%):
Employment status, employed, n (%):
Comorbidities, n (%):
Past exercise history, baseline exerciser, n (%):
On hormone therapy: not reported Current chemotherapy, n (%):
Other characteristics, n (%):
Other characteristics, mean (SD):
|
|
Interventions | 60 participants assigned to the exercise group, including
Type exercise (aerobic/anaerobic): aerobic Intensity of experimental exercise intervention: started at 60% of peak power output (VO2 peak) and increased by 5% each week to 75% by the fourth week Frequency: 3 times per week Duration of individual sessions: 15 to 20 minutes for first 4 weeks, increased by 5 minutes per week to 40 to 45 minutes in the ninth week Duration of exercise program: 12 weeks Total number of exercise sessions: 36 Format: group Facility: facility Professionally led by an exercise physiologist 62 participants assigned to the control group, including:
Adherence: attended a mean of 28/36 (77.8%) and a median of 33/36 (91.7%) supervised sessions. Duration and intensity were met during 27.8/28 (99.0%) and 25.4/28 (90.7%) supervised sessions, respectively:
Contamination of control group: the mean change in vigorous exercise from baseline: ‐ 4 minutes:
|
|
Outcomes | Primary outcome: patient‐rated physical functioning, assessed using the TOI‐An from the FACT‐An scale Secondary QoL outcomes included:
Outcomes were measured at baseline, 12 weeks, and 6 months:
Subgroup analyses: major disease type, current treatment status (on chemotherapy versus not), patient preference, age, sex, marital status, disease stage at entry, general health, BMI Adverse events: 3 adverse events related to exercise (back, hip, knee) |
|
Notes | Country: Canada Funding: Lance Armstrong Foundation; Canada Research Chairs Program; Alberta Heritage Foundation for Medical Research; NCIC; and by CCS and the NCIC/CCS Sociobehavioral Cancer Research Network |
|
Risk of bias | ||
Bias | Authors' judgement | Support for judgement |
Random sequence generation (selection bias) | Low risk | "Computer‐generated sequence" |
Allocation concealment (selection bias) | Low risk | "The allocation sequence was generated independently and concealed in opaque envelopes from the study coordinator who assigned participants to groups." |
Blinding of participants and personnel (performance bias) All outcomes | High risk | Owing to the nature of the intervention, masking or blinding of study participants was not possible; however, it is unclear whether the lack of masking could influence the outcomes |
Blinding of outcome assessment (detection bias) All outcomes | High risk | "Outcomes assessors were not always blinded to group assignment but were trained in standardizing testing procedures." |
Incomplete outcome data (attrition bias) All outcomes | Unclear risk | Although stated ITT analyses, missing data not accounted for. In exercise group, 3 participants did not complete QoL measures post intervention and 3 at 6 months In control group, 2 participants did not complete QoL measures postintervention, and 5 at 6 months |
Selective reporting (reporting bias) | Low risk | There appears to be no selective reporting of outcomes |
Other bias | Low risk | The trial appears to be free of other problems that could put it at a high risk of bias |
Culos‐Reed 2006.
Study characteristics | ||
Methods | Study design: randomized controlled cross‐over trial Number randomized: 38; 20 to the yoga group and 18 to the waiting list control group Study start and stop dates: not reported Length of intervention: 7 weeks Length of follow‐up: to end of intervention |
|
Participants | Type cancer: mostly breast cancer (85%) Time since cancer diagnosis, mean (SD) months: 55.95 (54.30) months Time beyond active treatment: > 3 months Inclusion criteria:
Eligibility criterion related to interest or ability to exercise, or both:
Exclusion criteria:
A medical examination was required for participation Gender: 95% female Current age, mean (SD): 51.2 (10.3) years Age at cancer diagnosis: not reported Ethnicity/race: not reported Education level: not reported SES: not reported Employment status: not reported Comorbidities: not reported Past exercise history: assessed using LSI of the Godin Leisure‐Time Activity Index, but not reported On hormone therapy: not reported |
|
Interventions | 20 participants assigned to the exercise group, including:
Type exercise (aerobic/anaerobic): aerobic Intensity of experimental exercise intervention: unclear, each individual worked at own exertion level Frequency: once per week Duration of individual sessions: 75 minutes Duration of exercise program: 7 weeks Total number of exercise sessions: 7 Format: group Facility: yoga studio Professionally led: instructor with Bachelor of Science degree in kinesiology and certified as a yoga instructor Adherence: not clearly reported, although it appears all completed the intervention 18 participants assigned to the control group, including:
Contamination of control group: no yoga reported |
|
Outcomes | Primary outcome: QoL, measured on all 38 participants before and after the exercise intervention, using:
Secondary outcomes:
Outcomes were measured at baseline and end of the intervention:
Adverse events: none reported |
|
Notes | Country: Canada Funding: Alberta Heritage Foundation for Medical Research Population Health Investigator Award; Canadian Institutes of Health Research New Investigator Award; University of Calgary Research Grant |
|
Risk of bias | ||
Bias | Authors' judgement | Support for judgement |
Random sequence generation (selection bias) | Unclear risk | The generation of the random sequence was not described |
Allocation concealment (selection bias) | Unclear risk | Whether the treatment assignment was concealed from study personnel and participants was not described |
Blinding of participants and personnel (performance bias) All outcomes | High risk | Owing to the nature of the intervention, it was not possible to blind the participants; however, it is unclear whether the outcome was influenced by a lack of masking |
Blinding of outcome assessment (detection bias) All outcomes | High risk | Study personnel and outcome assessors were not masked or blinded to the study interventions |
Incomplete outcome data (attrition bias) All outcomes | High risk | Two participants in the yoga group not included in the analyses. No reason given for the exclusion |
Selective reporting (reporting bias) | Low risk | There appears to be no selective reporting of outcomes |
Other bias | High risk | The small sample size and the lack of description of the recruitment and selection of participants could give rise to additional biases |
Daley 2007a.
Study characteristics | ||
Methods | Study design: RCT with 3 arms Number randomized: 108; 34 to an exercise‐therapy group, 36 to an exercise‐placebo group, and 38 to a control group Study start and stop dates: January 2003 to July 2005 Length of intervention: 8 weeks Length of follow‐up: 24 weeks |
|
Participants | Type cancer: breast cancer, stage not reported Time since cancer diagnosis: not reported Time beyond active treatment: 12 to 36 months Inclusion criteria:
Eligibility criterion related to interest or ability to exercise, or both:
Exclusion criteria:
Gender: female Current age: mean (SD) years
Age at cancer diagnosis: not reported Ethnicity/race:
Education level:
SES: not reported Employment status: employed
Comorbidities: experiencing lymphedema
Past exercise history: assessed, but not reported On hormone therapy:
|
|
Interventions | 34 participants assigned to the exercise therapy intervention, including:
Type exercise (aerobic/anaerobic): aerobic Intensity of experimental exercise intervention: HR and RPE were assessed every 2 minutes during sessions. Exercise‐therapy sessions involved moderate‐intensity exercise (65% to 85% of age‐adjusted HR maximum and RPE of 12 to 13) Frequency: 3 times per week Duration of session: 50 minutes Duration of exercise program: 8 weeks Total number of exercise sessions: 24 Format: 1‐to‐1 Facility: university Professionally led: exercise specialist Exercise‐placebo group: 36 participants assigned to exercise‐placebo group, including:
Control group: 38 participants were assigned to the control group, including:
Adherence: attended at least 70% of sessions
Contamination of control group: these groups did not increase their activity level |
|
Outcomes | Primary outcome: QoL outcomes, including:
Secondary outcomes included QoL and physiologic outcomes, including:
Outcomes were measured at baseline and 8 and 24 weeks:
Adverse events: none reported |
|
Notes | Country: UK Funding: Cancer Research UK |
|
Risk of bias | ||
Bias | Authors' judgement | Support for judgement |
Random sequence generation (selection bias) | Low risk | "performed using stratified random permuted blocks" |
Allocation concealment (selection bias) | Low risk | Telephone randomization service provided by an independent trials unit |
Blinding of participants and personnel (performance bias) All outcomes | High risk | Owing to the nature of the intervention, masking or blinding of study participants was not possible; however, it is unclear whether the lack of masking could influence the outcomes |
Blinding of outcome assessment (detection bias) All outcomes | High risk | "Outcome assessors were not blinded to participants' group allocation" |
Incomplete outcome data (attrition bias) All outcomes | Low risk | Data were analyzed on an ITT basis. "The trial statistician was blinded to group codes. Little's test was used to examine whether missing data were missing completely at random" |
Selective reporting (reporting bias) | Low risk | There appears to be no selective reporting of outcomes |
Other bias | Low risk | The trial appears to be free of other problems that could put it at a high risk of bias |
Danhauer 2009.
Study characteristics | ||
Methods | Study design: RCT Number randomized: 44; 22 to the exercise group and 22 to the control group Study start and stop dates: recruitment from August 2005 to October 2006 Length of intervention: 10 weeks Length of follow‐up: to end of the intervention |
|
Participants | Type cancer: breast cancer, DCIS or stages I to IV Cancer stage, n (%):
Time since cancer diagnosis, mean (SD) months:
Time beyond active treatment: 2 to 24 months post primary treatment (surgery); 34% still in active treatment Inclusion criteria:
Eligibility criterion related to interest or ability to exercise, or both:
Exclusion criteria:
Gender: women Current age, mean (SD) years:
Age at cancer diagnosis: not reported Ethnicity/race, n (%):
Education level, n (%):
SES, n (%):
Employment status: not reported Comorbidities: not reported Past exercise history, n (%):
On hormone therapy: not reported Ongoing treatment, n (%):
|
|
Interventions | 22 participants assigned to the exercise intervention, including:
Type exercise (aerobic/anaerobic): aerobic and anaerobic Intensity of experimental exercise intervention: mild Frequency: once per week Duration of individual sessions: 75 minutes Duration of exercise program: 10 weeks Total number of exercise sessions: 10 Format: group Facility: Wake Forest University Health Sciences and local studio Professionally led by yoga instructor with cancer‐specific yoga training who was registered by the National Yoga Alliance 22 participants assigned to control group, including:
Adherence: 11 women attended ≥ 7 sessions; 6 women attended 3 to 6 sessions; and 5 women attended ≤ 2 sessions Contamination of control group: not reported |
|
Outcomes | No primary outcomes were identified. Outcomes included:
Outcomes were measured at baseline and 10 weeks (end of the intervention):
Adverse events: cancer recurrence was reported for 4 women in the exercise group and 6 women in the control group. No adverse events were reported |
|
Notes | Country: US Funding: Wake Forest University Comprehensive Cancer Center |
|
Risk of bias | ||
Bias | Authors' judgement | Support for judgement |
Random sequence generation (selection bias) | Unclear risk | The generation of the random sequence was not described |
Allocation concealment (selection bias) | Unclear risk | Whether the treatment assignment was concealed from study personnel and participants was not described |
Blinding of participants and personnel (performance bias) All outcomes | High risk | Owing to the nature of the intervention, it was not possible to blind the participants; however, it is unclear whether the outcome was influenced by a lack of masking |
Blinding of outcome assessment (detection bias) All outcomes | High risk | Study personnel and outcome assessors were not masked or blinded to the study interventions |
Incomplete outcome data (attrition bias) All outcomes | High risk | Data were analyzed on an ITT basis. Participants who failed to return the study questionnaire were excluded from the analyses ‐ 9 participants in the exercise group and 7 participants in the control group did not return the study questionnaire. One participant in the control group withdrew from the study |
Selective reporting (reporting bias) | Low risk | There appears to be no selective reporting of outcomes |
Other bias | Low risk | The trial appears to be free of other problems that could put it at a high risk of bias |
Dimeo 2004.
Study characteristics | ||
Methods | Study design: RCT Number randomized: 72; 34 to the exercise group and 35 to the control group Study start and stop dates: not reported Length of intervention: 3 weeks Length of follow‐up: to end of the intervention |
|
Participants | Type cancer: lung cancer (n = 27), gastrointestinal cancer (n = 42) Cancer stage, n:
Time since cancer diagnosis, mean (SD) days:
Time beyond active treatment, mean (SD) days:
Inclusion criteria:
Eligibility criterion related to interest or ability to exercise, or both:
Exclusion criteria:
Gender:
Current age, mean (SD) years
Age at cancer diagnosis: not reported Ethnicity/race: not reported Education level: not reported SES: not reported Employment status: not reported Comorbidities: not reported Past exercise history: not reported On hormone therapy: not reported |
|
Interventions | 34 participants assigned to the exercise group, including:
Type exercise (aerobic/anaerobic): aerobic Intensity of experimental exercise intervention: 80% of the maximal HR in the stress test Frequency: 5 times per week Duration of session: 30 minutes Duration of exercise program: 3 weeks Total number of exercise sessions: 15 Format: group Facility: facility‐based Professionally led: not clear, but supervised by an physician in the same room Adherence: not reported 35 participants assigned to the control group, including:
Contamination of control group: not reported |
|
Outcomes | Outcome: QoL outcomes, using:
Subgroups: differences between participants with lung and gastrointestinal tumors. No differences found, so combined data from both groups Outcomes were measured at baseline and 3 weeks (end of the intervention):
Adverse events: 3 participants with thrombosis and infection in the exercise group |
|
Notes | Country: Germany Setting: Laboratory Funding: none reported |
|
Risk of bias | ||
Bias | Authors' judgement | Support for judgement |
Random sequence generation (selection bias) | Low risk | Computer‐generated random number list |
Allocation concealment (selection bias) | Low risk | "The randomisation sequence was concealed until assignment of interventions" |
Blinding of participants and personnel (performance bias) All outcomes | High risk | Owing to the nature of the intervention, it was not possible to blind the participants; however, it is unclear whether the outcome was influenced by a lack of masking |
Blinding of outcome assessment (detection bias) All outcomes | High risk | Study personnel and outcome assessors were not masked or blinded to the study interventions |
Incomplete outcome data (attrition bias) All outcomes | Low risk | 3 patients in the exercise group were admitted to the hospital for the treatment of a concurrent disease (thrombosis, infection). Data for the 3 patients who did not complete the questionnaire after the intervention were evaluated using the "worst rank assumption" |
Selective reporting (reporting bias) | Low risk | There appears to be no selective reporting of outcomes |
Other bias | High risk | Demographic information not reported |
Dodd 2010.
Study characteristics | ||
Methods | Study design: RCT Number randomized: 119; 44 to an exercise group that began exercise during treatment (EE), 36 to an exercise group that began exercise after treatment (CE), and 39 to the control group Study start and stop dates: 1999 to 2005 Length of intervention: 4 to 6 months Length of follow‐up: 1 year from baseline |
|
Participants | Type cancer: breast, n = 112; ovarian, n = 6; colon, n = 1 Cancer stage, n (%):
Time since cancer diagnosis: not reported Time beyond active treatment: unclear Inclusion criteria:
Eligibility criterion related to interest or ability to exercise, or both:
Exclusion criteria:
Gender: women Current age, mean (SD) years:
Age at cancer diagnosis: not reported Ethnicity/race, n (%):
Education level: not reported SES, ≥ USD40,000, n (%):
Employment status, employed full or part time, n (%):
Comorbidities: not reported Past exercise history, participation in regular exercise, n (%):
On hormone therapy: not reported |
|
Interventions | 80 participants assigned to the exercise intervention (44 in EE group and 36 in CE group), including:
Type exercise (aerobic/anaerobic): aerobic Intensity of experimental exercise intervention: targeted to HR corresponding to 60% to 80% VO2 peak, and to achieve the Borg Scale of 12‐ to 14‐point level ("somewhat hard"). Frequency: 3 to 5 times per week Duration of individual sessions: 20 to 30 minutes of continuous exercise Duration of exercise program: 4 to 6 months Total number of exercise sessions: not reported, but varied Format: individual Facility: home based Professionally supervised by exercise physiologist 39 participants assigned to control group, including:
Adherence: the EE group reported an adherence rate of 73% at end of intervention and 75.7% at end of follow‐up, and the CE group reported 86.7% adherence at end of intervention Contamination of control group: not reported |
|
Outcomes | No primary outcome was identified. QoL outcomes included:
Physical performance was measured using the KPS scale Outcomes were measured at baseline, 4 to 6 months (end of intervention) and 1 year:
Analyses were completed on 37 women in the EE group, 32 women in the CE group, and 37 women in the control group Subgroup analysis: none reported Adverse events:
|
|
Notes | Country: US Funding: National Cancer Institute; Clinical & Translational Science Institute, Clinical Research Center |
|
Risk of bias | ||
Bias | Authors' judgement | Support for judgement |
Random sequence generation (selection bias) | Unclear risk | The generation of the random sequence was not described |
Allocation concealment (selection bias) | Unclear risk | Whether the treatment assignment was concealed from study personnel and participants was not described |
Blinding of participants and personnel (performance bias) All outcomes | High risk | Owing to the nature of the intervention, it was not possible to blind the participants; however, it is unclear whether the outcome was influenced by a lack of masking |
Blinding of outcome assessment (detection bias) All outcomes | High risk | Study personnel and outcome assessors were not masked or blinded to the study interventions |
Incomplete outcome data (attrition bias) All outcomes | High risk | Several participants in each of the study groups were excluded from the analyses. There was no ITT analysis and it is unclear how missing data were handled |
Selective reporting (reporting bias) | Low risk | There appears to be no selective reporting of outcomes |
Other bias | Low risk | The trial appears to be free of other problems that could put it at a high risk of bias |
Donnelly 2011.
Study characteristics | ||
Methods | Study design: RCT Number randomized: 33; 16 to the exercise group and 17 to the control group Study start and stop dates: recruitment form June 2008 to March 2009 Length of intervention: 12 weeks Length of follow‐up: 6 months |
|
Participants | Type cancer, gynecologic cancers (ovarian, endometrial, uterine, cervical, or mixed), n (%):
Cancer stage, stage I‐III, n (%):
Time since cancer diagnosis, mean (SD) months:
Time beyond active treatment: some women still receiving treatment Inclusion criteria:
Eligibility criterion related to interest or ability to exercise, or both:
Exclusion criteria:
Gender: women Current age, mean (SD) years:
Age at cancer diagnosis: not reported Ethnicity/race: not reported Education level: not reported SES: not reported Employment status, n (%):
Comorbidities: not reported Past exercise history: not reported On hormone therapy: not reported |
|
Interventions | 16 participants assigned to the exercise intervention, including:
Type exercise (aerobic/anaerobic): aerobic Intensity of experimental exercise intervention: moderate Frequency: aim to meet physical activity guidelines (30 minutes of physical activity on at least 5 days a week) Duration of individual sessions: 30 minutes Duration of exercise program: 12 weeks Total number of exercise sessions: maximum of 60 Format: individual Facility: home based Professionally led with initial consultation with a professional physical therapist 17 participants assigned to control group, including:
Adherence: 44% of all participants, or 58% of all individuals who remained medically unfit to take part Contamination of control group: unclear |
|
Outcomes | Primary outcome:
Secondary outcomes:
Outcomes were measured at baseline, 12 weeks (end of intervention) and 6 months' follow‐up (9 months after baseline):
Subgroup analysis: none reported Adverse events:
|
|
Notes | Country: UK Funding: Department of Employment and Learning, Northern Ireland |
|
Risk of bias | ||
Bias | Authors' judgement | Support for judgement |
Random sequence generation (selection bias) | Low risk | Computer‐generated random numbers table was used to generate the allocation sequence |
Allocation concealment (selection bias) | Low risk | Allocation was concealed in sequentially numbered opaque envelopes |
Blinding of participants and personnel (performance bias) All outcomes | High risk | Owing to the nature of the intervention, masking or blinding of study participants was not possible; however, it is unclear whether the lack of masking could influence the outcomes |
Blinding of outcome assessment (detection bias) All outcomes | Low risk | The outcome assessor was blinded to the study allocation |
Incomplete outcome data (attrition bias) All outcomes | Low risk | The study used ITT analyses |
Selective reporting (reporting bias) | Low risk | There appears to be no selective reporting of outcomes |
Other bias | Low risk | The trial appears to be free of other problems that could put it at a high risk of bias |
Fillion 2008.
Study characteristics | ||
Methods | Study design: RCT Number randomized: 94; 48 to the exercise group and 46 to the control group Study start and stop dates: not reported Length of intervention: 4 weeks Length of follow‐up: 3 months |
|
Participants | Type cancer: breast cancer, stages 0 to III Time since cancer diagnosis, mean (SD) days:
Time beyond active treatment: no more than 2 years Inclusion criteria:
Eligibility criterion related to interest or ability to exercise, or both:
Exclusion criteria:
Gender: female Current age, mean (SD) years:
Age at cancer diagnosis: not reported Ethnicity/race: not reported Education level, n (%):
SES, n (%):
Employment status, n (%):
Comorbidities: not reported Past exercise history: not reported On hormone therapy, tamoxifen, nolvadex, zoladex, arimidex, n (%):
|
|
Interventions | 48 participants assigned to the exercise intervention, including:
Type exercise (aerobic/anaerobic): aerobic Intensity of experimental exercise intervention: unclear Frequency: 4 times per week Duration of exercise session: 1 hour Duration of program: 4 weeks Total number of exercise sessions: 16 Format: group Facility: facility and home Professionally led: kinesiologist led the exercise, and an oncology nurse led the psycho‐educational component Adherence: 45 of 48 participants completed the full treatment Co‐intervention: psycho‐educative, fatigue management 46 participants assigned to the control group, including
Contamination of control group: not reported |
|
Outcomes | Primary outcome: fatigue, measured with the General/Physical Fatigue subscale of the MFI Secondary outcomes: physical measures and QoL measures, including:
Outcomes were measured at baseline, 4 weeks, and 3 months:
Adverse events, cancer recurrence, n: exercise group: 2 control group: 1 |
|
Notes | Country: Canada Funding: BFonds de Recherche en Sante du Quebec, Investigator Award |
|
Risk of bias | ||
Bias | Authors' judgement | Support for judgement |
Random sequence generation (selection bias) | Low risk | sequence of randomization was "computer generated" |
Allocation concealment (selection bias) | Low risk | "sealed envelopes, which were concealed to both kinesiologist and patient" |
Blinding of participants and personnel (performance bias) All outcomes | High risk | Owing to the nature of the intervention, it was not possible to blind the participants; however, it is unclear whether the outcome was influenced by a lack of masking |
Blinding of outcome assessment (detection bias) All outcomes | High risk | Study personnel and outcome assessors were not masked or blinded to the study interventions |
Incomplete outcome data (attrition bias) All outcomes | High risk | 4 participants from the exercise group were not included in the analyses (withdrew, n = 1; cancer recurrence, n = 2; metastatic breast cancer diagnosis, n = 1); 3 participants from the control group were not included in the analyses (withdrew, n = 2; cancer recurrence, n = 10) |
Selective reporting (reporting bias) | Low risk | There appears to be no selective reporting of outcomes |
Other bias | Low risk | The trial appears to be free of other problems that could put it at a high risk of bias |
Heim 2007.
Study characteristics | ||
Methods | Study design: quasi‐RCT Number randomized: 63; 32 assigned to the exercise group and 31 to the control group Study start and stop dates: not reported Length of intervention: unclear Length of follow‐up: 3 months' postrehabilitation |
|
Participants | Type cancer: breast cancer Time since cancer diagnosis: not reported Time beyond active treatment: not reported, but at least 6 weeks since surgery or chemotherapy Inclusion criteria:
Eligibility criterion related to interest or ability to exercise, or both: not reported Exclusion criteria:
Gender: female Current age, n (%):
Age at cancer diagnosis: not reported Ethnicity/race: not reported Education level: not reported SES: not reported Employment status, n (%):
Comorbidities: not reported Past exercise history (before disease), n (%):
On hormone therapy: none |
|
Interventions | 32 participants assigned to the exercise intervention, including:
Type exercise (aerobic/anaerobic): aerobic Intensity of experimental exercise intervention: not reported Frequency: instructions were to complete strength training 3 times per week and aerobic exercise for 30 minutes twice per week Duration of exercise session: not reported Duration of exercise program: not reported Total number of exercise sessions: not reported Format: individual Facility: inpatient rehabilitation center, but exercises could also be completed at home Professionally led: initial instruction and printed brochures, but no further instruction Adherence: assessed as percentage (where adherence to program was equal to 100%), adherence to:
31 participants assigned to control group, including:
Contamination of control group: not reported, although this group received group exercises |
|
Outcomes | Outcomes: QoL outcomes, including:
Outcomes were measured at baseline, after rehabilitation and at 3 months, 59 participants with complete data:
Adverse events: not reported |
|
Notes | Country: Germany Funding: German Fatigue Society |
|
Risk of bias | ||
Bias | Authors' judgement | Support for judgement |
Random sequence generation (selection bias) | High risk | "according to their admission to hospital; depending on the alternating weeks they were allocated to the intervention group or the control group." |
Allocation concealment (selection bias) | High risk | Because of alternation, the investigators were aware of the next treatment assignment |
Blinding of participants and personnel (performance bias) All outcomes | High risk | Owing to the nature of the intervention, it was not possible to blind the participants; however, it is unclear whether the outcome was influenced by a lack of masking |
Blinding of outcome assessment (detection bias) All outcomes | High risk | Study personnel and outcome assessors were not masked or blinded to the study interventions |
Incomplete outcome data (attrition bias) All outcomes | High risk | There were complete data packets for 59 participants, but no information on missing patients. Also, "More patients in the control group (15) than in the training group (12) did not continue the study" |
Selective reporting (reporting bias) | Low risk | There appears to be no selective reporting of outcomes |
Other bias | Unclear risk | Poorly described study |
Herrero 2006.
Study characteristics | ||
Methods | Study design: RCT Number randomized: 20, 10 to the exercise group and 10 to the control group Study start and stop dates: recruitment was from November 2003 to April 2004 Length of intervention: 8 weeks Length of follow‐up: to end of the intervention |
|
Participants | Type cancer: Stage I or II ductal breast cancer, stage at diagnosis not reported Time since cancer diagnosis: not reported Time beyond active treatment, mean (SD) months:
Inclusion criteria:
Eligibility criterion related to interest or ability to exercise, or both:
Exclusion criteria:
Gender: female Current age, mean (SD) years:
Age at cancer diagnosis: not reported Ethnicity/race: not reported Education level: not reported SES: not reported Employment status: not reported Comorbidities: not reported Past exercise history: limited by exclusion criteria On hormone therapy: not reported Body mass and BMI, mean (SD):
|
|
Interventions | 10 participants assigned to an exercise group, including:
Type exercise (aerobic/anaerobic): aerobic and anaerobic Intensity of experimental exercise intervention: not reported Frequency: 3 times per week Duration of sessions: 90 minutes Duration of program: 8 weeks Total number of exercise sessions: 24 Format: not reported Facility: community fitness club (Miranda de Ebro, Spain) Professionally led: supervised by experienced investigator Adherence: mean (SD) % = 91.1% (6.9%); Control group: 10 participants assigned to:
Contamination of control group: not reported |
|
Outcomes | Primary outcome: physical and QoL outcomes, including:
Secondary outcomes, included:
Outcomes were measured at baseline and 8 weeks (end of the intervention):
Adverse events: none reported |
|
Notes | Country: Spain Funding: Universidad Europea de Madrid |
|
Risk of bias | ||
Bias | Authors' judgement | Support for judgement |
Random sequence generation (selection bias) | Unclear risk | The generation of the random sequence was not described |
Allocation concealment (selection bias) | Low risk | "The treatment allocation system was set up so that the researcher who was in charge of enrolling participants did not know in advance which treatment the next person would get" |
Blinding of participants and personnel (performance bias) All outcomes | High risk | Owing to the nature of the intervention, masking or blinding of study participants was not possible; however, it is unclear whether the lack of masking could influence the outcomes |
Blinding of outcome assessment (detection bias) All outcomes | Low risk | "Research assistants (exercise physiologists) with no knowledge of group assignments were designated to measure the outcome variables" |
Incomplete outcome data (attrition bias) All outcomes | High risk | 2 participants in each group withdrew. No information provided on withdrawals |
Selective reporting (reporting bias) | Low risk | There appears to be no selective reporting of outcomes |
Other bias | Low risk | The trial appears to be free of other problems that could put it at a high risk of bias |
Knols 2011.
Study characteristics | ||
Methods | Study design: RCT Number randomized: 131; 64 to the exercise group and 67 to the control group Study start and stop dates: enrolment from January 2005 to November 2008 Length of intervention: 12 weeks Length of follow‐up: 3 months from end of the intervention |
|
Participants | Type cancer, n (%):
Time since cancer diagnosis: not reported Time between HSCT and study, mean (SD) days:
Inclusion criteria:
Eligibility criterion related to interest or ability to exercise, or both:
Exclusion criteria:
Gender, n (%):
Current age, mean (SD) years:
Age at cancer diagnosis: not reported Ethnicity/race: not reported Education level, n (%):
SES: not reported Employment status: not reported Comorbidities: not reported Past exercise history, n (%):
On hormone therapy: not reported Other, BMI, mean (SD, range):
|
|
Interventions | 64 participants assigned to the exercise intervention, including a supervised physical exercise program with:
Type exercise (aerobic/anaerobic): aerobic and anaerobic Intensity of experimental exercise intervention: 20 minutes at a predefined individual HR (from 50% to 60%, increasing up to 70% to 80% of the estimated maximum HR) Frequency: twice per week Duration of individual sessions: 10 minutes warm‐up, 20 minutes maintenance plus time for resistance training Duration of exercise program: 12 weeks Total number of exercise sessions: 24 Format: unclear if individual or group Facility: facility base in a physical therapy practice or fitness center Professionally led by physiotherapist or a physical trainer 67 participants assigned to the control group, including:
Adherence: average participation in the physical exercise program was 85% (range = 21% to 100%), representing about 20.5 of 24 training sessions. 22 patients attended all (100%) of the sessions; 37.5% attended > 80% of the sessions; 17.2% attended ≥ 66% of the sessions; and 10.9% attended < 66% of the sessions Contamination of control group: 7.5% of the control group patients reported a minimum of 20 physical exercise sessions |
|
Outcomes | Primary outcome included QoL and physical outcomes, including:
Secondary QoL outcomes included:
Secondary physical function outcomes included:
Outcomes were measured at baseline, 12 weeks, and 3 months:
Subgroup analysis: several subgroup analyses were prespecified and conducted Adverse events: none reported |
|
Notes | Country: Switzerland Funding: Zurcher Kresliga (Zurich) and the Eidenossiche Sportkommission (Magglingen) |
|
Risk of bias | ||
Bias | Authors' judgement | Support for judgement |
Random sequence generation (selection bias) | Low risk | Sequence generated using a minimization procedure |
Allocation concealment (selection bias) | Low risk | Results of the randomisation were "...stored in opaque envelopes. The allocation sequence and contents of the envelopes were concealed by study personnel" |
Blinding of participants and personnel (performance bias) All outcomes | High risk | Owing to the nature of the intervention, participants and study personnel could not be masked or blinded to the allocation to the intervention |
Blinding of outcome assessment (detection bias) All outcomes | Low risk | Independent assessors of physical outcomes were blinded to group assignments and carried out the assessments |
Incomplete outcome data (attrition bias) All outcomes | Low risk | In the exercise group, 7 participants lost by end of intervention and additional 6 from end of intervention to end of the follow‐up. In control group, 10 participants lost by end of 12 weeks and additional 3 at end of follow‐up. Investigators included all study participants in the ITT analyses |
Selective reporting (reporting bias) | Low risk | There appears to be no selective reporting of outcomes |
Other bias | Low risk | The trial appears to be free of other problems that could put it at a high risk of bias |
McNeely 2008a.
Study characteristics | ||
Methods | Study design: RCT Number randomized: 52; 27 to the exercise group and 25 to the control group Study start and stop dates: recruitment from October 1, 2005 to October 31, 2006 Length of intervention: 12 weeks Length of follow‐up: to end of the intervention |
|
Participants | Type cancer: HNC Cancer stage, n (%):
Time since cancer diagnosis: not reported Time beyond active treatment, median (range) months:
Inclusion criteria:
Eligibility criterion related to interest or ability to exercise, or both: none reported Exclusion criteria:
Gender, n (%):
Current age, mean (range) years:
Age at cancer diagnosis: not reported Ethnicity/race: not reported Education level, completed university, n (%):
Income, > USD80,000/year:
SES, on disability, n (%):
Employment status: not reported Past exercise history, report currently exercising, n (%):
On hormone therapy: not reported |
|
Interventions | 27 participants assigned to the exercise intervention, including:
Type exercise (aerobic/anaerobic): aerobic and anaerobic Intensity of experimental exercise intervention: PRET = starting at 25% to 30% of their 1‐RM strength and slowly progressing to 60% to 70% of their 1‐RM strength by the end of the intervention period Frequency: minimum of 2 supervised sessions per week (with the option of a third session at the center or at home) for the 12‐week intervention period Duration of session: not reported Duration of program: 12 weeks Total number of exercise sessions: 24 to 36 sessions Format: unclear Facility: facility twice a week and home or facility once per week Professionally led: physical therapist with experience working with HNC survivors provided intervention for both groups 25 participants assigned to the control group, including:
Adherence: follow‐up assessment for the primary outcome was 92%
Contamination of control group: unclear whether the control group engaged in any exercise |
|
Outcomes | Primary outcome: patient‐rated shoulder pain and disability
Secondary outcomes: QoL and fatigue outcomes, including:
Outcomes were measured at baseline and 12 weeks (end of the intervention):
Adverse events:
|
|
Notes | Country: Canada Funding: Research Award from the Physiotherapy Foundation of Canada; Full Time Health; Research Studentship from the Alberta Heritage Foundation for Medical Research; Canada Research Chairs Program; Research Team Grant from the NCIC with funds from the CCS and the Sociobehavioural Cancer Research Network |
|
Risk of bias | ||
Bias | Authors' judgement | Support for judgement |
Random sequence generation (selection bias) | Low risk | "An independent researcher generated the allocation sequence by using a computer‐generated code" |
Allocation concealment (selection bias) | Low risk | "The allocation sequence and contents of the envelopes were enclosed in sequentially numbered an sealed (opaque) envelopes" |
Blinding of participants and personnel (performance bias) All outcomes | High risk | Owing to the nature of the intervention, it was not possible to blind the participants; however, it is unclear whether the outcome was influenced by a lack of masking |
Blinding of outcome assessment (detection bias) All outcomes | High risk | Study personnel and outcome assessors were not masked or blinded to the study interventions |
Incomplete outcome data (attrition bias) All outcomes | Low risk | There was significant attrition from the due to adverse effect. The authors conducted ITT analyses by using baseline‐observation‐carried‐forward analyses |
Selective reporting (reporting bias) | Low risk | There appears to be no selective reporting of outcomes |
Other bias | Low risk | The trial appears to be free of other problems that could put it at a high risk of bias |
Mehnert 2011.
Study characteristics | ||
Methods | Study design: RCT Number randomized: 63; 35 to the exercise group and 28 to the control group Study start and stop dates: not reported Length of intervention: 10 weeks Length of follow‐up: to end of the intervention |
|
Participants | Type cancer: non‐metastatic breast cancer, stages I to III Stage of cancer, n (%):
Time since cancer diagnosis: not reported Time beyond active treatment: at least 4 weeks following chemotherapy, radiation therapy, or both Inclusion criteria:
Eligibility criterion related to interest or ability to exercise, or both:
Exclusion criteria:
Gender: female Current age, mean (SD) years:
Age at cancer diagnosis: not reported Ethnicity/race: not reported Education level, n (%):
SES: not reported Employment status, n (%):
Comorbidities: not reported Past exercise history:
On hormone therapy: not reported |
|
Interventions | 35 participants assigned to a structured physical training program developed to promote muscular strength and exposure, including:
Although 35 women were assigned to the exercise intervention, 5 women refused to participate prior to the baseline assessment Type exercise (aerobic/anaerobic): aerobic Intensity of experimental exercise intervention: maximum of 60% VO2 Frequency: twice per week Duration of individual sessions: 90 minutes Duration of exercise program: 10 weeks Total number of exercise sessions: 20 Format: group Facility: indoor sports facility and outdoors Professionally led by trained member of study staff (qualified physical therapist or sport therapist) 28 participants assigned to control group, including:
Adherence: not reported Contamination of control group: not reported |
|
Outcomes | No primary outcome was identified. QoL outcomes included:
Outcomes were measured at baseline and 10 weeks: Different numbers of participants had data at the 2 time points as follows: Anxiety and depression:
Individual body Image:
Social body image:
Numbers of individuals with data for cancer‐specific HRQoL, generic HRQoL, and psychological symptoms were not reported Subgroup analysis: none reported Adverse events: no cancer recurrences or adverse events reported |
|
Notes | Country: Germany Funding: Friedrich and Louise Homann Foundation, Hamburg, Germany |
|
Risk of bias | ||
Bias | Authors' judgement | Support for judgement |
Random sequence generation (selection bias) | Unclear risk | It is unclear how the allocation sequence was generated |
Allocation concealment (selection bias) | Low risk | The randomization was adequately concealed through external randomization |
Blinding of participants and personnel (performance bias) All outcomes | High risk | Owing to the nature of the intervention, it was not possible to blind the participants; however, it is unclear whether the outcome was influenced by a lack of masking |
Blinding of outcome assessment (detection bias) All outcomes | High risk | Study personnel and outcome assessors were not masked or blinded to the study interventions |
Incomplete outcome data (attrition bias) All outcomes | High risk | It is unclear how missing data were handled. 5 randomized participants were reported to have "cancelled" participation in the exercise group |
Selective reporting (reporting bias) | Low risk | There appears to be no selective reporting of outcomes |
Other bias | High risk | The small sample size and participation in physical exercise by women in the study groups can contribute to bias |
Milne 2008a.
Study characteristics | ||
Methods | Study design: cross‐over RCT. Only information for first period included here Number randomized: 58; 29 to the immediate exercise group and 29 to the delayed exercise control group Study start and stop dates: recruitment between January 2005 and March 2005 Length of intervention: 12 weeks Length of follow‐up: to end of the intervention |
|
Participants | Type cancer: breast cancer Cancer stage, n (%):
Time since cancer diagnosis: within 24 months Time beyond active treatment, mean (SD) months:
Inclusion criteria:
Eligibility criterion related to interest or ability to exercise, or both. Participants were excluded if:
Exclusion criteria:
Gender: female Current age, mean (SD) years:
Age at cancer diagnosis: not reported Ethnicity/race: not reported Education level, university education, n (%):
SES: not reported Employment status, part‐ or full‐time employment, n (%):
Comorbidities: not reported Past exercise history: not reported On hormone therapy: 74.1% on hormone therapy |
|
Interventions | 29 participants assigned to the immediate exercise group, including:
Type exercise (aerobic/anaerobic): aerobic Intensity of experimental exercise intervention:
Frequency: 3 times per week Duration of sessions: 1 hour Duration of program: 12 weeks Total number of exercise sessions: 36 Format: individual and group Facility: Health and Rehabilitation Program Clinic at The University of Western Australia Professionally led: supervised by exercise physiologists Adherence: average attendance was 60.4% (21.7 of 36 sessions) with a median of 23 (63.9%) and a range of 11 to 36 29 participants assigned to the control group, including:
Contamination of control group: not reported |
|
Outcomes | Primary outcome: QoL outcomes, including:
Secondary outcomes, included:
Outcomes were measured at baseline, and weeks 6, 12, 18, and 24, except for SFT, which was measured at baseline and 12 weeks only:
Adverse events: none reported |
|
Notes | Country: Australia Funding: CCS and the NCIC/CCS Sociobehavioral Cancer Research Network |
|
Risk of bias | ||
Bias | Authors' judgement | Support for judgement |
Random sequence generation (selection bias) | Low risk | Computer‐generated randomization |
Allocation concealment (selection bias) | Low risk | "Group assignments were concealed from the project director who recruited participants to the trial" |
Blinding of participants and personnel (performance bias) All outcomes | High risk | Owing to the nature of the intervention, it was not possible to blind the participants; however, it is unclear whether the outcome was influenced by a lack of masking |
Blinding of outcome assessment (detection bias) All outcomes | High risk | Study personnel and outcome assessors were not masked or blinded to the study interventions |
Incomplete outcome data (attrition bias) All outcomes | Low risk | All study participants completed week 12 assessments and were included in the analysis |
Selective reporting (reporting bias) | Low risk | There appears to be no selective reporting of outcomes |
Other bias | High risk | Low adherence |
Moadel 2007.
Study characteristics | ||
Methods | Study design: RCT Number randomized: 164; 108 to a yoga exercise group and to 56 to the control group Study start and stop dates: 2001 to 2005 Length of intervention: 12 weeks Length of follow‐up: 1, 3, and 6 months |
|
Participants | Type cancer: breast cancer, stage of disease:
Time since cancer diagnosis, mean (SD, range) years:
Time beyond active treatment: receiving chemotherapy,%:
Randomization was stratified by treatment status Inclusion criteria:
Eligibility criterion related to interest or ability to exercise, or both:
Exclusion criteria: none reported Gender: female Current age, mean (SD, range) years:
Age at cancer diagnosis: not reported Ethnicity/race:
Education level:
SES: not reported Employment status: not reported Comorbidities: not reported Past exercise history: not reported On hormone therapy:
|
|
Interventions | 108 participants assigned to exercise group, consisting of yoga with each session including:
All exercises were done in a seated or reclined position. Type exercise (aerobic/anaerobic): aerobic Intensity of experimental exercise intervention: mild Frequency: once per week, but participants were allowed to attend more than 1 session per week and asked to practice yoga at home Duration of sessions: 90 minutes Duration of program: 12 weeks Total number of exercise sessions: 12 sessions Facility: facility and home Professionally led: not reported 56 participants assigned to control group, including:
Adherence: 26 (31%) participants did not attend any classes, but 8 reported practicing yoga at home at least a few times per week. The mean number of classes attended by active class participants was 7.00 (SD, 3.80) classes. Of 59 participants reporting data, 61% practiced yoga at home at least a few times per week Contamination of control group: not reported |
|
Outcomes | No primary outcome was identified. QoL outcomes included:
Outcomes were measured at baseline and 12 weeks:
Subgroup analysis: by treatment status Adverse events: none reported |
|
Notes | Country: US Funding: National Cancer Institute, Langeloth Foundation |
|
Risk of bias | ||
Bias | Authors' judgement | Support for judgement |
Random sequence generation (selection bias) | Unclear risk | Generation of allocation sequence was not described |
Allocation concealment (selection bias) | Unclear risk | Whether the treatment assignment was concealed from study personnel and participants was not described |
Blinding of participants and personnel (performance bias) All outcomes | High risk | Owing to the nature of the intervention, masking or blinding of study participants was not possible; however, it is unclear whether the lack of masking could influence the outcomes |
Blinding of outcome assessment (detection bias) All outcomes | High risk | Study personnel and outcome assessors were not masked or blinded to the study interventions |
Incomplete outcome data (attrition bias) All outcomes | Unclear risk | Investigators stated that they used an "intention‐to‐treat approach" but it is unclear how the 24 drop‐outs in the exercise arm and the 12 drop‐outs in the control arm were handled |
Selective reporting (reporting bias) | Low risk | There appears to be no selective reporting of outcomes |
Other bias | Low risk | The trial appears to be free of other problems that could put it at a high risk of bias |
Mustian 2004.
Study characteristics | ||
Methods | Study design: RCT Number randomized: 31; 17 to a Tai Chi Chuan exercise group and to 14 to the control group Study start and stop dates: not reported Length of intervention: 12 weeks Length of follow‐up: to end of the intervention |
|
Participants | Type cancer: breast cancer, Stage 0 to IIIb Time since cancer diagnosis: not reported Time beyond active treatment: between 1 week and 30 months Inclusion criteria:
Eligibility criterion related to interest or ability to exercise, or both:
Exclusion criteria:
Gender: female Current age, mean (SD, range): 52 (9, 33 to 78) years Age at cancer diagnosis: not reported Ethnicity/race: 90% Caucasian Education level: 90% some college SES: > USD40,000 household income, 62% Employment status: employed outside the home, 65% Comorbidities: not reported Past exercise history: not reported On hormone therapy: 56% had received hormonal therapy but specific hormones not reported |
|
Interventions | 17 participants assigned to the exercise intervention, including Tai Chi Chuan, comprised of:
Type exercise (aerobic/anaerobic): aerobic Intensity of experimental exercise intervention: moderate Frequency: 3 times per week Duration of sessions: 60 minutes Duration of program: 12 weeks Total number of exercise sessions: 36 Format: group Facility: facility Professionally led: ACSM‐certified health and fitness instructor certified in Tai Chi Control group: 14 participants assigned to the control group, including:
Adherence:
Contamination of control group: 10% |
|
Outcomes | Primary outcome: QoL outcomes, including:
Secondary outcomes: physical outcomes, including:
Outcomes were measured at baseline, 6 weeks, and 12 weeks (immediate postintervention):
Adverse events: no cancer recurrence reported; cognitive deficits reported as reason for treatment termination |
|
Notes | Country: US Funding: Susan Stout Exercise Science Research Fund, Sally Schindel Cone Women's and Gender Studies Research Fund |
|
Risk of bias | ||
Bias | Authors' judgement | Support for judgement |
Random sequence generation (selection bias) | Unclear risk | The generation of the random sequence was not described |
Allocation concealment (selection bias) | Unclear risk | Whether the treatment assignment was concealed from study personnel and participants was not described |
Blinding of participants and personnel (performance bias) All outcomes | High risk | Owing to the nature of the intervention, it was not possible to blind the participants; however, it is unclear whether the outcome was influenced by a lack of masking |
Blinding of outcome assessment (detection bias) All outcomes | High risk | Study personnel and outcome assessors were not masked or blinded to the study interventions |
Incomplete outcome data (attrition bias) All outcomes | High risk | 6 participants in the exercise group and 4 in the control group withdrew and were not included in the analyses |
Selective reporting (reporting bias) | Low risk | There appears to be no selective reporting of outcomes |
Other bias | Low risk | The trial appears to be free of other problems that could put it at a high risk of bias |
Oh 2008.
Study characteristics | ||
Methods | Study design: RCT Number randomized: 30; 15 to the exercise group and 15 to the control group Study start and stop dates: recruitment took place from July 2006 to August 2006 Length of intervention: 8 weeks Length of follow‐up: to end of the intervention |
|
Participants | Type cancer, n:
Time since cancer diagnosis: not reported Time beyond active treatment: some patient still undergoing chemotherapy; randomization stratified by whether still being treated or completed therapy Inclusion criteria:
Eligibility criterion related to interest or ability to exercise, or both:
Exclusion criteria:
Gender, n:·
Age group, n:
Age at cancer diagnosis: not reported Ethnicity, n:
Education level, n:
SES: not reported Employment status: not reported Comorbidities: not reported Past exercise history: limited by eligibility criteria On hormone therapy: not reported |
|
Interventions | 15 participants assigned to exercise group, consisting of medical qigong, with each session including:
Type exercise (aerobic/anaerobic): aerobic Intensity of experimental exercise intervention: mild Frequency: once or twice a week for 8 weeks and recommendation to practice at home daily Duration of sessions: 90 minutes, 1 hour for home sessions Duration of program: 8 weeks Total number of exercise sessions: maximum of 16 facility‐based and 56 home‐based sessions Facility: facility Professionally led: experienced medical qigong instructor who was a Chinese medicine practitioner 15 participants assigned to control group, including:
Adherence: not reported Contamination of control group: not reported |
|
Outcomes | The primary outcomes, QoL and symptom experience, included:
Physiologic outcomes included:
Outcomes were measured at baseline and 8 weeks:
Subgroup analysis: none reported Adverse events: none reported |
|
Notes | Country: Australia Funding: University of Sydney Cancer Research Fund |
|
Risk of bias | ||
Bias | Authors' judgement | Support for judgement |
Random sequence generation (selection bias) | Low risk | "Randomization was done by a computer program" |
Allocation concealment (selection bias) | Unclear risk | Whether the treatment assignment was concealed from study personnel and participants was not described |
Blinding of participants and personnel (performance bias) All outcomes | High risk | Owing to the nature of the intervention, masking or blinding of study participants was not possible; however, it is unclear whether the lack of masking could influence the outcomes |
Blinding of outcome assessment (detection bias) All outcomes | High risk | Study personnel and outcome assessors were not masked or blinded to the study interventions |
Incomplete outcome data (attrition bias) All outcomes | High risk | ITT analysis not completed. Of 15 randomized participants in each treatment group, 7 withdrew from the exercise group and 5 from the control group |
Selective reporting (reporting bias) | Unclear risk | There is no evidence of selective reporting of outcomes |
Other bias | Unclear risk | Small sample size can put study at risk of bias |
Oh 2010.
Study characteristics | ||
Methods | Study design: RCT Number randomized: 162; 79 to the exercise group and 83 to the control group Study start and stop dates: first recruitment phase was between July 2006 and August 2007 and the second recruitment phase was from August 2007 to May 2008 Length of intervention: 10 weeks Length of follow‐up: to end of the intervention |
|
Participants | Type cancer, n (%):
Time since cancer diagnosis: not reported Time beyond active treatment: 36 (47.4%) of patients in the intervention group still undergoing cancer treatment and 34 (45.9%) in the control group; randomization stratified by whether still being treated or completed therapy Inclusion criteria:
Eligibility criterion related to interest or ability to exercise, or both:
Exclusion criteria:
Gender, n (%):·
Age, mean (SD) years:
Age at cancer diagnosis: not reported Ethnicity, n (%):
Education level, n (%):
SES: not reported Employment status: not reported Comorbidities: not reported Past exercise history: limited by eligibility criteria On hormone therapy: not reported |
|
Interventions | 79 participants assigned to exercise group, consisting of medical Qigong, with each session including:
Type exercise (aerobic/anaerobic): aerobic Intensity of experimental exercise intervention: mild Frequency: twice per week for 10 weeks and recommendation to practice at home daily Duration of sessions: 90 minutes for supervised sessions, 30 minutes for home sessions Duration of program: 10 weeks Total number of exercise sessions: maximum of 20 facility‐based and 70 home‐based sessions Facility: facility Professionally led: experienced medical Qigong instructor who was a Chinese medicine practitioner 83 participants assigned to control group, including:
Adherence: not reported Contamination of control group: not reported |
|
Outcomes | The primary outcome of QoL included:
Secondary outcomes includes:
Physiologic outcomes included:
Outcomes were measured at baseline and 10 weeks:
Subset: cognitive function outcomes were reported for a subset of patients enrolled after October 2007, including:
For this group, outcomes were measured at baseline and 10 weeks
Subgroup analysis: none reported Adverse events: none reported |
|
Notes | Country: Australia Funding: University of Sydney Cancer Research Fund |
|
Risk of bias | ||
Bias | Authors' judgement | Support for judgement |
Random sequence generation (selection bias) | Low risk | "Randomization, by computer..." |
Allocation concealment (selection bias) | Unclear risk | Whether the treatment assignment was concealed from study personnel and participants was not described |
Blinding of participants and personnel (performance bias) All outcomes | High risk | Owing to the nature of the intervention, masking or blinding of study participants was not possible; however, it is unclear whether the lack of masking could influence the outcomes |
Blinding of outcome assessment (detection bias) All outcomes | High risk | Study personnel and outcome assessors were not masked or blinded to the study interventions |
Incomplete outcome data (attrition bias) All outcomes | Low risk | ITT analysis completed. There were 25 drop‐outs in the exercise group and 29 drop‐outs in the control group, and missing values were "dealt with by multiple imputation..." |
Selective reporting (reporting bias) | Low risk | There appears to be no selective reporting of outcomes |
Other bias | Low risk | The trial appears to be free of other problems that could put it at a high risk of bias |
Ohira 2006.
Study characteristics | ||
Methods | Study design: RCT Number randomized: 86; 43 to the exercise group and 43 to the delayed exercise control group Study start and stop dates: October 2001 to June 2002 Length of intervention: 6 months Length of follow‐up: to end of the intervention |
|
Participants | Type cancer: breast cancer Cancer stage, n (%):
Time since cancer diagnosis, mean (range) years:
Time beyond active treatment, mean (range) years:
Inclusion criteria:
Eligibility criterion related to interest or ability to exercise, or both:
Exclusion criteria:
Gender: female Current age, mean (SD) years:
Age at cancer diagnosis: not reported Ethnicity/race, n (%) Caucasian:
Education level, n (%):
SES: not reported Employment status: not reported Comorbidities: not reported Past exercise history: limited by eligibility criteria On hormone therapy, n (%):
Other: postmenopausal, n (%):
|
|
Interventions | 43 participants assigned to the exercise intervention, including:
Type exercise (aerobic/anaerobic): aerobic and anaerobic Intensity of experimental exercise intervention: not reported Frequency: twice per week Duration of sessions: not reported Duration of program: 6 months Total number of exercise sessions: maximum of 52 Format: started as supervised group (4 in a group); after 13 weeks, participants encouraged to work out with buddy(ies). Log sheets checked weekly by fitness trainer and if no data were recorded in 1 week, the fitness trainer called the participant Facility: gym facility Professionally led: certified fitness professional 43 participants assigned to control group, including:
Adherence: baseline to 6 months, 1 participant attended < 80% of the sessions. From months 7 to 12, 14 exercise group participants attended < 70% of sessions Contamination of control group: not reported |
|
Outcomes | Primary outcome: QoL and physiologic outcomes, including:
Outcomes were measured at baseline and 6 months:
Subgroup analyses: post hoc subgroup analyses, including postmenopausal status, baseline levels of sport and leisure physical activity, baseline level of energy intake (kilocalories), and 6‐month changes in physical activity and energy intake Adverse events:
|
|
Notes | Country: US Setting: Recreation center Funding: Susan G. Komen Foundation and grants to the UMN GCRC from the NIH |
|
Risk of bias | ||
Bias | Authors' judgement | Support for judgement |
Random sequence generation (selection bias) | Low risk | "Random number table" |
Allocation concealment (selection bias) | Low risk | "The randomization procedure used prevented investigators from influencing treatment allocation" |
Blinding of participants and personnel (performance bias) All outcomes | High risk | Owing to the nature of the intervention, masking or blinding of study participants was not possible; however, it is unclear whether the lack of masking could influence the outcomes |
Blinding of outcome assessment (detection bias) All outcomes | Low risk | "Measurement staff remained blinded until the end of the study, with the exception of the strength testing staff..." |
Incomplete outcome data (attrition bias) All outcomes | High risk | 4 participants lost to follow‐up in the exercise group, 2 due to recurrences and 2 due to withdrawals; 3 participants were lost to follow‐up in the control group, 2 due to recurrences and 1 due to withdrawal |
Selective reporting (reporting bias) | Low risk | There appears to be no selective reporting of outcomes |
Other bias | Low risk | The trial appears to be free of other problems that could put it at a high risk of bias |
Payne 2008.
Study characteristics | ||
Methods | Study design: RCT Number randomized: 20; 10 to the exercise group and 10 to the control group Study start and stop dates: 9‐month period but dates not reported Length of intervention: 14 weeks Length of follow‐up: to end of the intervention |
|
Participants | Type cancer: breast cancer Time since cancer diagnosis: not reported Time beyond active treatment: not reported Inclusion criteria:
Eligibility criterion related to interest or ability to exercise, or both:
Exclusion criteria:
Gender: female Current age, mean (SD) years: 64.7 (6.3) years Age at cancer diagnosis: not reported Ethnicity/race, n (%): 18 (90%) Caucasian and 2 (10%) African‐American Education level, n (%): 11th or 12th grade education, 5 (25%); some college level education, 7 (35%); college degree or higher level of education, 8 (40%) SES, household income, n (%): ≤ USD20,000, 4 (20%); USD20,001 to USD40,000, 5 (25%); USD40,001 to USD60,000, 4 (20%); > USD60,000, 6 (30%); refused to answer 1 (5%) Employment status, n (%): employed, 3 (15%); homemaker, 1 (5%); retired, 11 (55%); other employment status, 2 (10%); did not provide employment information, 3 (15%) Comorbidities: not reported Past exercise history: not reported On hormone therapy: all used tamoxifen, anastrozole, or letrozole |
|
Interventions | 10 participants assigned to the exercise intervention, including:
Type exercise (aerobic/anaerobic): aerobic Intensity of experimental exercise intervention: moderate Frequency: 4 times per week Duration of individual sessions: 20 minutes Duration of exercise program: 14 weeks Total number of exercise sessions: 56 sessions Format: individual Facility: home Not professionally led, but explained by study coordinator 10 participants assigned to the control group, including:
Adherence: 9 out of the 10 women completed the study, adherence data on number of sessions completed are not specified Contamination of control group: not reported |
|
Outcomes | No primary outcome was identified. QoL outcomes included:
Physiologic outcomes included:
Outcomes were measured at baseline, 12 weeks, and 14 weeks:
Subgroup analysis: none reported Adverse events: none reported |
|
Notes | Country: US Funding: NIH/National Institute of Nursing Research |
|
Risk of bias | ||
Bias | Authors' judgement | Support for judgement |
Random sequence generation (selection bias) | Unclear risk | Generation of allocation sequence was not described |
Allocation concealment (selection bias) | Unclear risk | Whether the treatment assignment was concealed from study personnel and participants was not described |
Blinding of participants and personnel (performance bias) All outcomes | High risk | Owing to the nature of the intervention, it was not possible to blind the participants; however, it is unclear whether the outcome was influenced by a lack of masking |
Blinding of outcome assessment (detection bias) All outcomes | High risk | Study personnel and outcome assessors were not masked or blinded to the study interventions |
Incomplete outcome data (attrition bias) All outcomes | High risk | There was no description on how missing data were handled. Participants in each group withdrew from the study |
Selective reporting (reporting bias) | Low risk | There is no evidence of selective reporting of outcomes |
Other bias | High risk | Small sample size and low recruitment rate can put study at risk of bias |
Penttinen 2011.
Study characteristics | ||
Methods | Study design: RCT Number randomized: 573; 302 to the exercise group and 271 to the control group Study start and stop dates: enrolment between September 2005 and September 2007 Length of intervention: 12 months Length of follow‐up: 6 and 12 months after baseline |
|
Participants | Type cancer: breast cancer Time since cancer diagnosis: not reported Time beyond active treatment, median (range) weeks:
Inclusion criteria:
Eligibility criterion related to interest or ability to exercise, or both:
Exclusion criteria:
Gender: female Current age, mean (range) years: 52.4 (35 to 68) years Age at cancer diagnosis: not reported Ethnicity/race: not reported Education level, mean (SD) years: 13.9 (3.4) years SES: not reported Employment status, n (%): self‐employed, 20 (3.7%); upper‐level employees, 101 (18.8%); lower‐level employees, 227 (42.3%); manual workers, 45 (8.4%); students, 5 (0.9%); pensioner, housewives, 98 (18.2%); unemployed, 16 (3.0%); missing, 25 (4.7%) Comorbidities, n (%): hypertension, 108 (20.1%); cardiovascular diseases, 10 (1.9%); diabetes, 12 (2.2%); psychiatric disease, 48 (8.9%) Past exercise history, n (%): inactive, 92 (17.1%); exercising with moderate intensity, 282 (52.5%); vigorous exercising, 114 (21.2%); missing, 49 (9.1%) On hormone therapy, n (%): 445 (82.9%) BMI, n (%): < 25 (normal weight), 231 (43.0%); 25 to 30 (overweight), 204 (38.0%); > 30 (obese), 102 (19.0%) |
|
Interventions | 302 participants assigned to a 2‐component supervised exercise training intervention, with each component performed in alternate weeks. The components included:
In addition, there were 2 to 3 similar home training sessions Type exercise (aerobic/anaerobic): aerobic Intensity of experimental exercise intervention: vigorous Frequency: once per week and 2 to 3 similar home sessions Duration of individual sessions: 60 minutes Duration of exercise program: 12 months Total number of exercise sessions: 52 supervised sessions and 104 to 156 home training sessions Format: group (at facility) and individual (at home) Facility: facility and home Professionally led by experienced physical therapists who all had also received a similar training for the study exercises 271 participants assigned to the control group, including:
Adherence: 24 premenopausal trainees attended a median of 30/52 (58%) supervised training sessions
Based on 109 returned training diaries, premenopausal participants completed home training on average 2.8 times weekly for a total time of 2.9 hours. The median total number of training sessions (supervised and home training sessions together) was 3.3 times per week (interquartile range 2.4 to 4.6) Postmenopausal trainees attended a median of 33/52 (63%) training sessions:
Based on 122 returned training diaries, postmenopausal participants completed home training 3.2 times (107%) weekly for a total time of 3.5 hours. The median total number of training sessions was 4.3 times per week (interquartile range 2.3 to 5.4) Contamination of control group: not reported |
|
Outcomes | No primary outcome was identified. QoL outcomes included:
Physical outcomes included:
QoL outcomes were measured at baseline, but there is no report on whether these outcomes were measured at follow‐up. Physiologic outcomes were measured at baseline, and 6 and 12 months. These outcomes were measured as follows:
Subgroup analysis: none reported Adverse events: none reported |
|
Notes | Country: Finland Funding: Finnish Cancer Institute; Finnish Cancer Foundation; Academy of Finland; Social Insurance Institution of Finland; Finnish Ministry of Education; Finska Läkaresällskapet; Special government grant for health science research; Helander Foundation; Gyllenberg Foundation; Paulo Foundation; Kurt and Doris Palander Foundation; Finnish Cultural Foundation and Medical Fund of the Pirkanmaa Hospital District; Finnish Astra‐Zeneca sponsored step benches for the study; Finnish Breast Cancer group |
|
Risk of bias | ||
Bias | Authors' judgement | Support for judgement |
Random sequence generation (selection bias) | Unclear risk | The generation of the random sequence was not described |
Allocation concealment (selection bias) | Unclear risk | Whether the treatment assignment was concealed from study personnel and participants was not described |
Blinding of participants and personnel (performance bias) All outcomes | High risk | Owing to the nature of the intervention, it was not possible to blind the participants; however, it is unclear whether the outcome was influenced by a lack of masking |
Blinding of outcome assessment (detection bias) All outcomes | High risk | Study personnel and outcome assessors were not masked or blinded to the study interventions |
Incomplete outcome data (attrition bias) All outcomes | High risk | There was no ITT analysis and it is unclear how missing data were handled. Analyses were completed on 262/302 women in the intervention group and in 236/271 women in the control group |
Selective reporting (reporting bias) | Low risk | There appears to be no selective reporting of outcomes |
Other bias | Low risk | The trial appears to be free of other problems that could put it at a high risk of bias |
Pinto 2003.
Study characteristics | ||
Methods | Study design: RCT Number randomized: 24, 12 to the exercise group and 12 to the control group Study start and stop dates: not reported Length of intervention: 12 weeks Length of follow‐up: within 1 week of completing the intervention |
|
Participants | Type cancer: breast cancer, Stage 0 to II Cancer stage, n (%):
Time since cancer diagnosis, mean (SD) days: 452.6 (234.9) days Time beyond active treatment, mean (SD) days: 323.5 (212.3) days Inclusion criteria:
Eligibility criterion related to interest or ability to exercise, or both:
Exclusion criteria:
Gender: female Current age: mean (SD) years, 52.5 (6.8) years Age at cancer diagnosis: not reported Ethnicity/race: 100% Caucasian Education level: high school, 30%; college degree, 30% SES: 42% reported an annual household income of > USD50,000 Employment status: 16 (67%) working full‐time Other:
Past exercise history: not reported On hormone therapy, n (%): 14 (61%) |
|
Interventions | 12 participants assigned to the exercise group, including:
Type exercise (aerobic/anaerobic): aerobic first 2 months; both aerobic and anaerobic during final month Intensity of experimental exercise intervention: 60% to 70% of peak HR by the end of the 12‐week intervention Frequency: 3 times per week Duration of session: 50 minutes Duration of program: 12 weeks Total number of exercise sessions: 36 Format: group and home‐based exercise program Facility: both facility and home Professionally led: fitness instructor for class, supervised and upgraded program by exercise physiologist once per week Control group: 12 participants assigned to the control group, including
Adherence: 3 participants withdrew within the first 3 weeks Contamination of control group: not reported |
|
Outcomes | Outcome: QoL and physiologic outcomes, including:
Outcomes were measured at baseline and within 1 week of end of the 12 week training:
Adverse events: none reported |
|
Notes | Country: US Funding: National Institute of Mental Health, NIH |
|
Risk of bias | ||
Bias | Authors' judgement | Support for judgement |
Random sequence generation (selection bias) | Unclear risk | The generation of the random sequence was not described |
Allocation concealment (selection bias) | Unclear risk | Whether the treatment assignment was concealed from study personnel and participants was not described |
Blinding of participants and personnel (performance bias) All outcomes | High risk | Owing to the nature of the intervention, it was not possible to blind the participants; however, it is unclear whether the outcome was influenced by a lack of masking |
Blinding of outcome assessment (detection bias) All outcomes | High risk | Study personnel and outcome assessors were not masked or blinded to the study interventions |
Incomplete outcome data (attrition bias) All outcomes | High risk | 3 participants withdrew in the exercise group, and 6 participants withdrew in the control group |
Selective reporting (reporting bias) | Low risk | There appears to be no selective reporting of outcomes |
Other bias | Low risk | The trial appears to be free of other problems that could put it at a high risk of bias |
Pinto 2005.
Study characteristics | ||
Methods | Study design: RCT Number randomized: 86; 43 to the exercise group and 43 to the control group Study start and stop dates: 1998 to 2003 Length of intervention: 12 weeks Length of follow‐up: 12 weeks, 6 months, and 9 months |
|
Participants | Type cancer: breast cancer Cancer stage, Stage 0 to II, n (5):
Time since cancer diagnosis, mean (SD) years:
Time beyond active treatment: not reported Inclusion criteria:
Eligibility criterion related to interest or ability to exercise, or both:
Exclusion criteria:
Gender: female Current age, mean (SD) years:
Age at cancer diagnosis: not reported Ethnicity/race, n (%):
Education level, n (%):
SES, household income, n (%):
Employment status, n (%):
Other, BMI, mean (SD) kg/m2:
Comorbidities: none reported Past exercise history: not reported On hormone therapy, n (%):
|
|
Interventions | 43 participants assigned to the exercise group, including:
Type exercise (aerobic/anaerobic): aerobic Intensity of experimental exercise intervention: 55% to 65% of maximum HR Frequency: 10 minutes each on 2 days per week, gradually increased to 30 minutes per day on 5 days per week Duration of sessions: 10 to 30 minutes Duration of program: 12 weeks Total number of exercise sessions: 24 to 60 Format: individual Facility: home‐based Professionally led: unclear; individual instruction provided but not reported by whom and regular telephone calls made, but not reported who made the calls Adherence: participants wore a pedometer, but adherence not reported Control group: 43 participants assigned to control group, including:
Contamination of control group: not reported |
|
Outcomes | Primary outcome: QoL outcomes, including:
Secondary outcomes: QoL and physiologic outcomes, including:
All outcomes measured at baseline and end of intervention:
Subgroups: baseline demographics, hormone therapy, type partner controlled for in the analyses. Employment and education dichotomized outcomes Adverse events: not reported |
|
Notes | Country: US Funding: National Cancer Institute grant |
|
Risk of bias | ||
Bias | Authors' judgement | Support for judgement |
Random sequence generation (selection bias) | Unclear risk | The generation of the random sequence was not described |
Allocation concealment (selection bias) | Unclear risk | Whether the treatment assignment was concealed from study personnel and participants was not described |
Blinding of participants and personnel (performance bias) All outcomes | High risk | Owing to the nature of the intervention, it was not possible to blind the participants; however, it is unclear whether the outcome was influenced by a lack of masking |
Blinding of outcome assessment (detection bias) All outcomes | High risk | Study personnel and outcome assessors were not masked or blinded to the study interventions |
Incomplete outcome data (attrition bias) All outcomes | High risk | 4 participants withdrew from the exercise group, and 2 participants withdrew from the control group before the 6‐month assessment. Another 2 participants in the control group withdrew before the 9 month assessment |
Selective reporting (reporting bias) | Low risk | There appears to be no selective reporting of outcomes |
Other bias | Low risk | The trial appears to be free of other problems that could put it at a high risk of bias |
Rogers 2009.
Study characteristics | ||
Methods | Study design: RCT Number randomized: 41; 21 to the exercise group and 20 to the control group Study start and stop dates: recruitment from April 2006 to May 2007 Length of intervention: 12 weeks Length of follow‐up: 3 months after end of the intervention |
|
Participants | Type cancer: breast Cancer stage, Stage I to III, n (%):
Time since cancer diagnosis: not reported Time beyond active treatment:
Inclusion criteria:
Eligibility criterion related to interest or ability to exercise, or both:
Exclusion criteria:
Gender: female Current age, mean (SD) years:
Age at cancer diagnosis: not reported Ethnicity/race, n (%):
Education level, mean (SD) years:
SES household income, n (%):
Employment status: not reported Comorbidities:
Past exercise history: not reported On hormone therapy:
|
|
Interventions | 21 participants assigned to the exercise group, including:
Type exercise (aerobic/anaerobic): aerobic Intensity of experimental exercise intervention: transition from baseline to week 12 to 150 minutes of moderate‐intensity activity Frequency: gradually increased from 3 times a week to 5 times a week Duration of sessions: not reported Duration of program: 12 weeks Total number of exercise sessions: 52 Format: individual exercise; group peer support Facility: facility and home Professionally led: exercise specialists certified (or certification‐eligible) by the ACSM Adherence: participants completed 100% (252/252) of the individual exercise sessions, 95% (60/63) of the individual update sessions, and 98% (123/126) of the group session for overall 99% (435/441) adherence. 6% (4/63) of update sessions were completed by telephone 20 participants were assigned to the control group, including:
Contamination of control group: not reported |
|
Outcomes | Outcomes: QoL outcomes and physiologic outcomes, including
Outcomes were measured at baseline, 12 weeks, and 3 months after intervention (6 months after randomization)
Adverse events: none reported |
|
Notes | Country: US Funding: Southern Illinois University School of Medicine Excellence in Academic Medicine Award, Brooks Medical Research Fund, Memorial Medical Center Foundation and Regional Cancer Center |
|
Risk of bias | ||
Bias | Authors' judgement | Support for judgement |
Random sequence generation (selection bias) | Low risk | "Computer‐generated" |
Allocation concealment (selection bias) | Unclear risk | "Sealed envelopes" |
Blinding of participants and personnel (performance bias) All outcomes | High risk | Owing to the nature of the intervention, it was not possible to blind the participants; however, it is unclear whether the outcome was influenced by a lack of masking |
Blinding of outcome assessment (detection bias) All outcomes | High risk | Study personnel and outcome assessors were not masked or blinded to the study interventions |
Incomplete outcome data (attrition bias) All outcomes | High risk | The investigators stated that they conducted an ITT analyses, but 2 participants withdrew from the exercise group and 3 from the control group. The authors also reported that the rate of missing data for the FACT‐ES and the FACT‐Cog exceeded the pre‐specified amount for imputation of values and they analyzed |
Selective reporting (reporting bias) | Low risk | There appears to be no selective reporting of outcomes |
Other bias | Low risk | The trial appears to be free of other problems that could put it at a high risk of bias |
Segar 1998.
Study characteristics | ||
Methods | Study design: quasi‐randomized partial cross‐over controlled trial. We include only the first treatment period Number randomized: 30; 10 to an exercise group, 10 to an exercise and behavioral modification group, and 10 to a control group. The exercise and exercise and behavioral modification groups were combined for all analyses Study start and stop dates: not reported Length of intervention: 10 weeks Length of follow‐up: 12 weeks |
|
Participants | Type cancer: breast cancer Time since cancer diagnosis: not reported Time beyond active treatment, mean (SD, range) months: 41.8 (24.9, 1 to 99) months Time since surgery, mean (SD, range) months:
Inclusion criteria:
Eligibility criterion related to interest or ability to exercise, or both:
Exclusion criteria:
Gender: female Current age, mean (SD, range) years:
Age at cancer diagnosis: not reported Ethnicity/race:
Education level:
SES: not reported Employment status:
Comorbidities: not reported Past exercise history: not reported On hormone therapy: not reported |
|
Interventions | 10 participants assigned to the exercise group, including
Type exercise (aerobic/anaerobic): aerobic Intensity of experimental exercise intervention: ≥ 60% of age‐predicted maximum HR (mild to moderate) Frequency: 4 days per week Duration of session: 30 to 40 minutes per session Duration of program: 10 weeks Total number of exercise sessions: 40 Format: unclear Facility: exercise facility was at the university or that of the participants' preference Professionally led: not professionally led 10 participants assigned to the exercise and behavioral modification group, including:
Adherence: overall compliance, assessed from self‐reported exercise logs averaged 1363 (SD = 577) minutes over the 10 weeks, where 100% compliance is equivalent to 1,200 minutes. Average compliance for participants reaching at least 89% compliance was 1532 (SD = 103) minutes (mean compliance of 130%) with a range form 89 to 250% 10 participants initially assigned to the control group, including:
Contamination of control group: unclear |
|
Outcomes | Outcomes: QoL outcomes, including:
Outcomes were measured at baseline and at 10 weeks:
Adverse events: none reported |
|
Notes | Country: US Funding: Michigan Initiative for Women's Health Grant |
|
Risk of bias | ||
Bias | Authors' judgement | Support for judgement |
Random sequence generation (selection bias) | High risk | "Subjects were rotated sequentially into two treatment conditions and one control group" |
Allocation concealment (selection bias) | Unclear risk | Whether the treatment assignment was concealed from study personnel and participants was not described |
Blinding of participants and personnel (performance bias) All outcomes | High risk | Owing to the nature of the intervention, it was not possible to blind the participants; however, it is unclear whether the outcome was influenced by a lack of masking |
Blinding of outcome assessment (detection bias) All outcomes | High risk | Study personnel and outcome assessors were not masked or blinded to the study interventions |
Incomplete outcome data (attrition bias) All outcomes | High risk | 4 participants were excluded from the exercise group and 2 participants were excluded from the control group. Exclusion from the analyses occurred because of attrition or noncompliance with the study protocol |
Selective reporting (reporting bias) | Low risk | There appears to be no selective reporting of outcomes |
Other bias | Low risk | The trial appears to be free of other problems that could put it at a high risk of bias |
Speck 2010.
Study characteristics | ||
Methods | Study design: RCT Number randomized: 295; 148 (71 with lymphedema and 77 without lymphedema) to the exercise group and 147 (70 with lymphedema and 77 without lymphedema) to the control group Study start and stop dates: recruitment took place between October 2005 and February 2007 Length of intervention: 12 months Length of follow‐up: to end of the intervention |
|
Participants | Type cancer: breast cancer Cancer Stage, for women with lymphedema, n (%):
Cancer Stage, for women without lymphedema, n (%):
Time since cancer diagnosis, for women with lymphedema, mean (SD) months:
Time since cancer diagnosis, for women without lymphedema, mean (SD) months:
Time beyond active treatment: not reported Inclusion criteria:
Additional inclusion criteria, for women with lymphedema:
Additional inclusion criteria, for women without lymphedema:
Eligibility criteria related to interest or ability to exercise, or both:
Exclusion criteria:
Additional exclusion criteria, for women with lymphedema:
Gender: female Current age, for women with lymphedema, mean (SD) years:
Current age, for women without lymphedema, mean (SD) years:
Age at cancer diagnosis: not reported Ethnicity/race, for women with lymphedema, n (%):
Ethnicity/race, for women without lymphedema, n (%):
Education level, for women with lymphedema, n (%):
Education level, for women without lymphedema, n (%):
SES: not reported Employment status, for women with lymphedema, n (%):
Employment status, for women without lymphedema, n (%):
Comorbidities: n reported Past exercise history: not reported On hormone therapy: not reported |
|
Interventions | 148 participants (71 with lymphedema and 77 without lymphedema) assigned to the exercise intervention, consisting of progressive strength (weight) training including:
Type exercise (aerobic/anaerobic): aerobic and anaerobic Intensity of experimental exercise intervention: not reported Frequency: twice per week Duration of individual sessions: 90 minutes Duration of exercise program: 52 weeks Total number of exercise sessions: 104 sessions Format: group Facility: community fitness center, usually a Young Mens Christian Association facility Professionally led and supervised for the first 3 months by fitness professionals employed by the fitness center and certificated by a National Committee for Certifying Agencies accredited organization, such as the ACSM 147 participants (70 with lymphedema and 77 without lymphedema) assigned to the control group, including:
Adherence: for women with lymphedema: median attendance to weight lifting sessions was 88%; for women without lymphedema: median attendance to weight lifting sessions was 79% Contamination of control group: not reported |
|
Outcomes | Primary outcome:
Secondary QoL measures included:
QoL measures assessed using the Health and Attitudes Survey, including:
Secondary physical measures included:
All outcomes were measured at baseline and 1 year. Some outcomes were also measured at 3 and 6 months. For women with lymphedema, outcomes were measured as follows:
For women without lymphedema, outcomes were measured as follows:
Subgroup analysis: a large number of subgroup analyses were prespecified Adverse events: none reported |
|
Notes | Country: US Funding: NIH/National Cancer Institute and the Public Health Services Research Grant |
|
Risk of bias | ||
Bias | Authors' judgement | Support for judgement |
Random sequence generation (selection bias) | Low risk | Allocation sequence was a computer generated minimization scheme |
Allocation concealment (selection bias) | Low risk | "...de‐identified data for ... variables were entered after completion of all baseline measures, the study coordinator then called participants to reveal the outcome of randomization and to schedule groups for the supervised groups" |
Blinding of participants and personnel (performance bias) All outcomes | High risk | Owing to the nature of the intervention, it was not possible to mask the participants; however, it is unclear whether the outcome was influenced by a lack of blinding |
Blinding of outcome assessment (detection bias) All outcomes | Unclear risk | Study personnel were not masked or blinded about the allocation, but the outcome assessors measuring physical outcomes were blinded to allocation |
Incomplete outcome data (attrition bias) All outcomes | High risk | There is no evidence that missing data were adequately and appropriate addressed. Large numbers of study participants withdrew; among those with lymphedema, 17 women in the exercise group and 12 women in control group withdrew; where, among women without lymphedema, 18 women in the exercise group and 16 women in control group withdrew |
Selective reporting (reporting bias) | High risk | The report presents on only some of the outcomes measured in the trial |
Other bias | Low risk | No other biases were apparent |
Tang 2010.
Study characteristics | ||
Methods | Study design: RCT Number randomized: 72; 37 to the exercise group and 35 to the control group Study start and stop dates: not reported Length of intervention: 8 weeks Length of follow‐up: 1 month and 2 months |
|
Participants | Type cancer, n (%):
Time since cancer diagnosis, mean (SD) years:
Time beyond active treatment, mean: unclear whether treatment was concluded. Author reports cancer treatment, n (%):
Inclusion criteria:
Eligibility criterion related to interest or ability to exercise, or both:
Exclusion criteria:
Gender, n (%):
Current age, mean (SD) years:
Age at cancer diagnosis: not reported Ethnicity/race: not reported Education level, mean (SD) years:
SES: not reported Employment status, n (%):
Comorbidities: not reported Past exercise history: not reported On hormone therapy: not reported |
|
Interventions | 37 participants assigned to a walking exercise intervention, including:
Type exercise (aerobic/anaerobic): aerobic Intensity of experimental exercise intervention: rating of perceived exertion between 11 to 13, with a rating of 6 = resting and 20 = very, very hard Frequency: 3 times per week Duration of individual sessions: 30 minutes plus 5 minutes warm‐up and 5 minutes cool‐down Duration of exercise program: 8 weeks Total number of exercise sessions: 24 Format: individual Facility: home Not professionally led. 35 participants assigned to the control group, including:
Adherence: 32/36 (89%) reached an adherence rate of at least 50%. Mean (SD) number of complete exercise sessions 20.03 (6.60) Contamination of control group: not reported |
|
Outcomes | Primary outcome
Secondary outcomes included:
Outcomes were measured at baseline, 1 month, and 2 months:
Subgroup analysis: none specified Adverse events: no adverse events reported |
|
Notes | Country: Taiwan Funding: not reported |
|
Risk of bias | ||
Bias | Authors' judgement | Support for judgement |
Random sequence generation (selection bias) | Low risk | Allocation sequence was generated using a table of random numbers |
Allocation concealment (selection bias) | Unclear risk | Whether the treatment assignment was concealed from study personnel and participants was not described |
Blinding of participants and personnel (performance bias) All outcomes | High risk | Owing to the nature of the intervention, it was not possible to blind the participants; however, it is unclear whether the outcome was influenced by a lack of masking |
Blinding of outcome assessment (detection bias) All outcomes | High risk | Study personnel and outcome assessors were not masked or blinded to the study interventions |
Incomplete outcome data (attrition bias) All outcomes | Low risk | The study was analyzed on an ITT basis. Missing observations, including those incurred by participant drop‐outs, were imputed by the "last observation carried forward" method. The disproportionate attrition from the intervention group places the study at a high risk of bias |
Selective reporting (reporting bias) | Low risk | There appears to be no selective reporting of outcomes |
Other bias | Low risk | The trial appears to be free of other problems that could put it at a high risk of bias |
Targ 2002.
Study characteristics | ||
Methods | Study design: RCT Number randomized: 181; 93 to the exercise group and 88 to the control group Study start and stop dates: not reported Length of intervention: 12 weeks Length of follow‐up: to end of the intervention |
|
Participants | Type cancer: breast cancer, Stage, n (%)
Time since cancer diagnosis: within 18 months of diagnosis Time beyond active treatment: not reported, but some women were on chemotherapy, n (%):
Inclusion criteria:
Eligibility criterion related to interest or ability to exercise, or both: none reported Exclusion criteria: none reported Gender: female Current age, mean (SD) years:
Age at cancer diagnosis: not reported Ethnicity/race, n (%):
Education level, n (%):
SES, income, n (%):
Employment status: not reported Comorbidities: not reported Past exercise history, number of days spent exercising and minutes of exercise, mean (SD) days and minutes:
On hormone therapy, n (%):
Postmenopausal status, n (%):
|
|
Interventions | 93 participants assigned to an intensive lifestyle change and group support program that included:
Type exercise (aerobic/anaerobic): aerobic Intensity of experimental exercise intervention: mild to moderate Frequency: once per week Duration of individual sessions: 90 minutes Duration of exercise program: 12 weeks Total number of exercise sessions: 12 Format: group Facility: facility Professionally led: nurse 88 participants assigned to the control group, including:
Adherence: 6 women did not attend any session, but no other adherence was noted Contamination of control group: not reported |
|
Outcomes | Outcomes: QoL outcomes, including:
Outcomes were measured at baseline and at 12 weeks:
Adverse events: none reported |
|
Notes | Country: US Funding: United States Department of Defense Material Command |
|
Risk of bias | ||
Bias | Authors' judgement | Support for judgement |
Random sequence generation (selection bias) | Unclear risk | The generation of the random sequence was not described |
Allocation concealment (selection bias) | Unclear risk | Whether the treatment assignment was concealed from study personnel and participants was not described |
Blinding of participants and personnel (performance bias) All outcomes | High risk | Owing to the nature of the intervention, it was not possible to blind the participants; however, it is unclear whether the outcome was influenced by a lack of masking |
Blinding of outcome assessment (detection bias) All outcomes | High risk | Study personnel and outcome assessors were not masked or blinded to the study interventions |
Incomplete outcome data (attrition bias) All outcomes | Unclear risk | Although it was stated that an ITT analysis was performed, there were 7 women who dropped out in the intervention group and 24 in the control group and an additional 27 who did not attend any session and were not included in the analyses |
Selective reporting (reporting bias) | Low risk | There appears to be no selective reporting of outcomes |
Other bias | Low risk | The trial appears to be free of other problems that could put it at a high risk of bias |
Thorsen 2005.
Study characteristics | ||
Methods | Study design: RCT Number randomized: 139; 69 to the exercise group and 70 to the control group Study start and stop dates: not reported Length of intervention: 14 weeks Length of follow‐up: to end of the intervention |
|
Participants | Type cancer, n: lymphoma, 25; breast, 42; gynecologic, 24; testicular, 20
Time since cancer diagnosis: not reported Time beyond active treatment, mean (SD) days: 28 (9) days Inclusion criteria:
Eligibility criterion related to interest or ability to exercise, or both:
Exclusion criteria:
Gender, n (%):
Current age, mean (SD) years:
Age at cancer diagnosis: 39 years Ethnicity/race: not reported Education level: not reported SES: not reported Employment status: not reported Other, BMI, mean (SD) kg/m2:
Comorbidities: not reported Past exercise history: not reported On hormone therapy: not reported |
|
Interventions | 69 participants assigned to the exercise group, including:
Type exercise (aerobic/anaerobic): aerobic Intensity of experimental exercise intervention: 13 to 15 on Borg perceived exertion scale (where the score range from 6 to 20, and a value of 6 means no exertion at all and 20 means maximal exertion) and 60% to 70% of maximum HR if using a HR monitor Frequency: twice a week Duration of sessions: 30 minutes Duration of program: 14 weeks Total number of exercise sessions: 28 Format: individual Facility: home Professionally led: exercise instructor Adherence: 30 (51%) of participants reported being "physically active" during the treatment period Co‐intervention: none 70 participants were assigned to the control group, including:
Contamination of control group: 24 (46%) of participants reported being "physically active" during the treatment period |
|
Outcomes | Primary outcome: physical outcome, measured by:
Secondary outcomes: QoL outcomes, including:
Outcomes were measured at baseline and 14 weeks:
Adverse events: none reported |
|
Notes | Country: Norway Funding: Norwegian Foundation for Health and Rehabilitation and The Norwegian Cancer Society |
|
Risk of bias | ||
Bias | Authors' judgement | Support for judgement |
Random sequence generation (selection bias) | Low risk | "Computerized random assignment" |
Allocation concealment (selection bias) | Low risk | "The Norwegian Radium Hospital was responsible for computerized random assignment" |
Blinding of participants and personnel (performance bias) All outcomes | High risk | Owing to the nature of the intervention, it was not possible to blind the participants; however, it is unclear whether the outcome was influenced by a lack of masking |
Blinding of outcome assessment (detection bias) All outcomes | High risk | Study personnel and outcome assessors were not masked or blinded to the study interventions |
Incomplete outcome data (attrition bias) All outcomes | High risk | Although the authors stated that the ITT analysis was used, 10 participants in the exercise group withdrew and 18 participants in the control group withdrew |
Selective reporting (reporting bias) | Low risk | There appears to be no selective reporting of outcomes |
Other bias | Low risk | The trial appears to be free of other problems that could put it at a high risk of bias |
1‐RM: 1‐repetition maximum; ACSM: American College of Sports Medicine; AIDS: acquired immune deficiency syndrome; ALL: acute lymphoblastic leukemia; AML: acute myeloid leukemia; BDI: Beck Depression Inventory; BES: Body Esteem Scale; BIQ: Body Image Questionnaire; BMI: body mass index; CARES‐SF: Cancer Rehabilitation Evaluation System Short Form; CCS: Canadian Cancer Society; CES‐D: Centers for Epidemiologic Studies ‐ Depression scale; CI: confidence interval; DCIS: ductal carcinoma in situ; ECOG: Eastern Cooperative Oncology Group; EORTC QLQ‐C30: European Organization for Research and Treatment of Cancer Quality of Life Questionnaire Core Module; EWB: emotion well‐being; FACIT‐F: Functional Assessment in Chronic Illness Therapy ‐ Fatigue; FACIT‐Sp: Functional Assessment of Chronic Illness Therapy ‐ Spiritual; FACT‐An: Functional Assessment of Cancer Therapy ‐ Anemia; FACT‐B: Functional Assessment of Cancer Therapy ‐ Breast; FACT‐C: Functional Assessment of Cancer Therapy ‐ Colorectal; FACT‐Cog: Functional Assessment of Cancer Therapy ‐ Cognitive Function; FACT‐ES: Functional Assessment of Cancer Therapy ‐ Endocrine Symptoms; FACT‐F: Functional Assessment of Cancer Therapy ‐ Fatigue; FACT‐G: Functional Assessment of Cancer Therapy ‐ General; FACT‐Lym: Functional Assessment of Cancer Therapy ‐ Lymphoma; FACT‐Sp: Functional Assessment of Cancer Therapy ‐ Spirituality; FWB: functional well‐being; GED: General Education Diploma; GVHD: graft‐versus‐host disease; HADS: Hospital Anxiety and Depression Scale; HL: Hodgkin lymphoma; HNC: head and neck cancer; HR: heart rate; HRQoL: health‐related quality of life; HSCT: hematopoietic stem cell transplant; ITT: intention to treat; KPS: Karnofsky Performance Status; LASA: Linear Analog Self‐Assessment; LSI: Leisure Score Index; MAC: Mental Adjustment to Cancer; MFI: Multidimensional Fatigue Inventory; MOS SF‐12: Medical Outcomes 12‐Item Short Form Health Survey; MOS SF‐36: Medical Outcomes 36‐Item Short Form Health Survey; MCS: mental component status; MFSI‐SF: Multidimensional Fatigue Symptom Inventory Short Form; NCIC: National Cancer Institute of Canada; NHL: non‐Hodgkin lymphoma; NIH: National Institutes of Health; NYHA: New York Heart Association; PANAS: Positive and Negative Affect Schedule; PCS: physical component status; POMS: Profile of Moods Scale; PRET: progressive resistance exercise training; PSQI: Pittsburgh Sleep Quality Index; PWB: physical well‐being; QoL: quality of life; RCT: randomized controlled trial; ROM: range of motion; rPAR‐Q: revised Physical Activity Readiness Questionnaire; RPE: ratings of perceived exertion; RSE: Rosenberg Self‐Esteem; SCFC: Schwartz Cancer Fatigue Scale; SCL‐90‐R: Symptom Checklist‐90 Revised; SD: standard deviation; SES: socioeconomic status; SFT: Submaximal Fitness Test; SOSI: Symptoms of Stress Inventory; SPADI: Shoulder Pain and Disability Index; SPAS‐7: Social Physique Anxiety Scale‐7 items; STAI: State‐Trait Anxiety Index; SWB: social/family well‐being; SWLS: Satisfaction with Life Scale; TOI: Trial Outcome Index; TOI‐An: Trial Outcome Index ‐ Anemia; TTM: Trans Theoretical Model; WOMAC: Western Ontario and McMaster Universities Osteoarthritis Index.
Characteristics of excluded studies [ordered by study ID]
Study | Reason for exclusion |
---|---|
Basen‐Engquist 2006 | This study was excluded as it did not compare an exercise with no exercise, another intervention, or usual care |
Beurskens 2007 | This study was excluded as the exercise was aimed toward reduction in shoulder dysfunction rather than for improvement in whole body function or QoL |
Blanchard 2001 | This study was excluded as it was not an RCT or a CTT |
Bloom 2008 | This study was excluded as it did not measure overall HRQoL or an HRQoL domain as a study outcome |
Braam 2010 | This study was excluded as it did not exclude people below the age of 18 years |
Carmack Taylor 2004 | This study was excluded as it did not compare an exercise with no exercise, another intervention, or usual care |
Carmack Taylor 2006 | This study was excluded as it did not compare an exercise with no exercise, another intervention, or usual care |
Carmack Taylor 2007 | This study was excluded as all the participants were undergoing active cancer treatment for either the primary or recurrent cancer |
Carson 2009 | This study was excluded as it did not measure overall HRQoL or an HRQoL domain as a study outcome |
Cheema 2006 | This study was excluded as it was not an RCT or a CCT and it did not compare an exercise with no exercise, another intervention, or usual care |
Cheung 2003 | This study was excluded as it did not compare an exercise with no exercise, another intervention, or usual care |
Cinar 2008 | This study was excluded as the exercise was aimed toward reduction in lymphedema and improvement in shoulder mobility rather than for improvement in whole body function or QoL |
Courneya 2004a | This study was excluded as it did not measure overall HRQoL or an HRQoL domain as a study outcome |
Courneya 2004b | This study was excluded as it did not compare an exercise with no exercise, another intervention, or usual care |
Courneya 2004c | This study was excluded as it did not measure overall HRQoL or an HRQoL domain as a study outcome |
Courneya 2005 | This study was excluded as it did not measure overall HRQoL or an HRQoL domain as a study outcome |
Courneya 2008 | This study was excluded as the majority (> 90%) of participants were undergoing chemotherapy |
Daley 2007 | This study was excluded as it did not measure overall HRQoL or an HRQoL domain as a study outcome |
Demark‐Wahnefried 2003 | This study was excluded as it did not compare an exercise with no exercise, another intervention, or usual care |
Demark‐Wahnefried 2003a | This study was excluded as it did not compare an exercise with no exercise, another intervention, or usual care |
Demark‐Wahnefried 2006 | This study was excluded as it did not compare an exercise with no exercise, another intervention, or usual care |
Demark‐Wahnefried 2007 | This study was excluded as it did not compare an exercise with no exercise, another intervention, or usual care |
Dincer 2007 | This study was excluded as it did not compare an exercise with no exercise, another intervention, or usual care |
Dong 2006 | This study was excluded as it did not compare an exercise with no exercise, another intervention, or usual care |
Duijts 2009 | This study was excluded as it did not measure overall HRQoL or an HRQoL domain as a study outcome |
Elkin 1998 | This study was excluded as it was not an RCT or a CCT, it did not exclude people below the age of 18 years; it did not compare an exercise with no exercise, another intervention, or usual care; and it did not measure overall HRQoL or an HRQoL domain as a study outcome |
Elliott 2006 | This study was excluded as it did not include cancer survivors and it did not compare an exercise with no exercise, another intervention, or usual care |
Emslie 2007 | This study was excluded as it was not a randomized controlled trial or a controlled clinical trial; did not compare an exercise with no exercise, another intervention, or usual care; and it did not measure overall HRQoL or an HRQoL domain as a study outcome |
Fairey 2005 | This study was excluded as it did not measure overall HRQoL or an HRQoL domain as a study outcome |
Fairey 2005a | This study was excluded as it did not measure overall HRQoL or an HRQoL domain as a study outcome |
Filocamo 2005 | This study was excluded as it did not measure overall HRQoL or an HRQoL domain as a study outcome |
Gordon 2005 | This study was excluded as it was not an RCT or a CCT |
Griffith 2009 | This study was excluded as all the participants were undergoing active cancer treatment for either the primary or recurrent cancer |
Hayes 2004 | This study was excluded as all the participants were undergoing active cancer treatment for either the primary or recurrent cancer, and it did not exclude people below the age of 18 years |
Houborg 2006 | This study was excluded as all the participants were undergoing active cancer treatment for either the primary or recurrent cancer |
Hughes 2004 | This study was excluded as it was not an RCT or a CCT and it did not compare an exercise with no exercise, another intervention, or usual care and it did not measure overall HRQoL or an HRQoL domain as a study outcome |
Hughes 2008 | This study was excluded as it was not an RCT or a CCT and it did not compare an exercise with no exercise, another intervention, or usual care |
Jarden 2009 | This study was excluded as all the participants were undergoing active cancer treatment for either the primary or recurrent cancer |
Jones 2004a | This study was excluded as it did not compare an exercise with no exercise, another intervention, or usual care and it did not measure overall HRQoL or an HRQoL domain as a study outcome |
Jones 2008 | This study was excluded as it was not a randomized controlled trial or a controlled clinical trial, and it did not compare an exercise with no exercise, another intervention, or usual care |
Kilbreath 2006 | This study was excluded as the exercise was aimed toward reduction in shoulder dysfunction rather than for improvement in whole body function or QoL |
Kim 2010 | This study was excluded as it did not measure overall HRQoL or an HRQoL domain as a study outcome |
Kim 2011 | This study was excluded as it did not compare an exercise with no exercise, another intervention, or usual care |
Kolden 2002 | This study was excluded as it was not an RCT or a CCT, and it did not compare an exercise with no exercise, another intervention, or usual care |
Korstjens 2008 | This study was excluded as it did not compare an exercise with no exercise, another intervention, or usual care |
Lazowski 1999 | This study was excluded as it did not measure overall HRQoL or an HRQoL domain as a study outcome |
Ligibel 2008 | This study was excluded as it did not measure overall HRQoL or an HRQoL domain as a study outcome |
Livingston 2011 | This study was excluded as it did not compare an exercise with no exercise, another intervention, or usual care |
Mansky 2006 | This study was excluded as it was not an RCT or a CCT; it did not compare an exercise with no exercise, another intervention, or usual care; and it did not measure overall HRQoL or an HRQoL domain as a study outcome |
Mathewson‐Chapman 1997 | This study was excluded as it did not compare an exercise with no exercise, another intervention, or usual care, and it did not measure overall HRQoL or an HRQoL domain as a study outcome |
Matthews 2007 | This study was excluded as it did not compare an exercise with no exercise, another intervention, or usual care, and it did not measure overall HRQoL or an HRQoL domain as a study outcome |
May 2008 | This study was excluded as it did not measure overall HRQoL or an HRQoL domain as a study outcome |
McClure 2010 | This study was excluded as it did not compare an exercise with no exercise, another intervention, or usual care |
McKenzie 2003 | This study was excluded as the exercise was aimed toward reduction in lymphedema rather than for improvement in whole body function or QoL |
McNeely 2004 | This study was excluded as the exercise was aimed toward reduction in shoulder dysfunction rather than for improvement in whole body function or QoL |
Midtgaard 2006 | This study was excluded as it was not an RCT or a CCT; it did not exclude people who were undergoing active cancer treatment for either the primary or recurrent cancer; it did not compare an exercise with no exercise, another intervention, or usual care; and the exercise intervention was initiated before completion of active treatment |
Milne 2008 | This study was excluded as it did not measure overall HRQoL or an HRQoL domain as a study outcome |
Morey 2009 | This study was excluded as it did not compare an exercise with no exercise, another intervention, or usual care |
Mustian 2006 | This study was excluded as it did not measure overall HRQoL or an HRQoL domain as a study outcome |
Mutrie 2007 | This study was excluded as all the participants were undergoing active cancer treatment for either the primary or recurrent cancer |
Nikander 2007 | This study was excluded as it did not measure overall HRQoL or an HRQoL domain as a study outcome |
Osei‐Tutu 2005 | This study was excluded as the participants were not cancer survivors or undergoing active treatment for cancer |
Pinto 2009 | This study was excluded as it did not measure overall HRQoL or an HRQoL domain as a study outcome |
Poorkiani 2010 | This study was excluded as it did not compare an exercise with no exercise, another intervention, or usual care |
Rabin 2006 | This study was excluded as it was not an RCT or a CCT and it did not compare an exercise with no exercise, another intervention, or usual care |
Sandel 2005 | This study was excluded as it did not compare an exercise with no exercise, another intervention, or usual care |
Schneider 2007 | This study was excluded as it was not an RCT or a CCT, and it did not compare an exercise with no exercise, another intervention, or usual care |
Segal 2001 | This study was excluded as all the participants were undergoing active cancer treatment for either the primary or recurrent cancer |
Segal 2003 | This study was excluded as all the participants were undergoing active cancer treatment for either the primary or recurrent cancer |
Snyder 2009 | This study was excluded as it did not compare an exercise with no exercise, another intervention, or usual care |
Sprod 2005 | This study was excluded as it did not compare an exercise with no exercise, another intervention, or usual care and it did not measure overall HRQoL or an HRQoL domain as a study outcome |
Twiss 2009 | This study was excluded as it did not measure overall HRQoL or an HRQoL domain as a study outcome |
Vallance 2007 | This study was excluded as it did not compare an exercise with no exercise, another intervention, or usual care, and it did not measure overall HRQoL or an HRQoL domain as a study outcome |
Vallance 2007a | This study was excluded as it did not compare an exercise with no exercise, another intervention, or usual care |
Vallance 2008 | This study was excluded as it did not compare an exercise with no exercise, another intervention, or usual care |
Vallance 2008a | This study was excluded as it did not compare an exercise with no exercise, another intervention, or usual care and it did not measure overall HRQoL or an HRQoL domain as a study outcome |
van Weert 2005 | This study was excluded as it did not compare an exercise with no exercise, another intervention, or usual care |
van Weert 2010 | This study was excluded as it did not compare an exercise with no exercise, another intervention, or usual care |
von Gruenigen 2009 | This study was excluded as it did not compare an exercise with no exercise, another intervention, or usual care |
Wall 2000 | This study was excluded as it did not measure overall HRQoL or an HRQoL domain as a study outcome |
Yeh 2011 | This study was excluded as it was not an RCT or a CCT, and it did not compare an exercise with no exercise, another intervention, or usual care |
Zhang 2006 | This study was excluded as it did not compare an exercise with no exercise, another intervention, or usual care |
CCT: controlled clinical trial; HRQoL: health‐related quality of life; QoL: quality of life; RCT: randomized controlled trial.
Characteristics of studies awaiting classification [ordered by study ID]
Utz‐Billing 2010.
Methods | Randomized controlled trial |
Participants | Women who have had breast cancer surgery (breast‐sparing therapy or mastectomy) |
Interventions | Yoga classes compared with waiting list controls |
Outcomes | QoL assessed by EORTC QLQ‐C23, physical function assessed by the FACT‐B, and disabilities of the upper limbs |
Notes | Published abstract |
EORTC QLQ‐C30: European Organization for Research and Treatment of Cancer Quality of Life Questionnaire Core Module; FACT‐B: Functional Assessment of Cancer Therapy ‐ Breast; QoL: quality of life;
Characteristics of ongoing studies [ordered by study ID]
Devonish 2007.
Study name | Physical activity for cancer survivors |
Methods | RCT |
Participants | Mixed cancer survivors |
Interventions | A 16‐week home‐based physical activity program, which was supplemented with biweekly group sessions compared with waiting list control |
Outcomes | Fitness training, physical activity levels, QoL assessed using the EORTC QLQ‐C30, mood state assessed using the POMS scale |
Starting date | 2007 |
Contact information | Julia A. Devonish University of Calgary |
Notes | Published abstract |
Galvao 2009.
Study name | RADAR |
Methods | RCT |
Participants | Cohort undergoing or previously treated for prostate cancer involving androgen deprivation therapy |
Interventions | Supervised resistance/aerobic exercise compared with standard physical activity recommendation |
Outcomes | Outcomes include aerobic walking capacity, anthropometric measures (abdominal obesity), various blood markers, self‐reported physical activity, HRQoL assessed using the EORTC QLQ‐C30, falls self‐efficacy assessed using the activities‐specific balance, psychological distress assessed using the BSI, nutrition, lower body physical function. In addition, at 1 of the study sites, additional outcomes assessed include body composition, muscle strength, balance and risk of falling |
Starting date | 2009 |
Contact information | Daniel A. Galvao, Vario Health Institute, School of Exercise, Biomedical and Health Sciences, Edith Cowan University, Joondalup, WA, Australia |
Notes | Published protocol. Trial Registration: ACTRN 12609000729224 |
Hayes 2011.
Study name | Exercise for Health |
Methods | RCT |
Participants | Postsurgical women with a first diagnosis of invasive breast cancer |
Interventions | Patient‐centered aerobic and strength‐based exercise program, delivered either face‐to‐face or by telephone compared with usual care |
Outcomes | The primary outcome is HRQoL assessed using the FACT‐B questionnaire |
Starting date | October 2006. Recruitment ended June 2008 |
Contact information | Sandra Hayes, School of Public Health, Queensland University of Technology |
Notes | Published protocol and baseline characteristics. Registered at ANZCTR (ACTRN12609000809235) |
Jones 2010.
Study name | Exercise Intensity Trial (EXCITE) |
Methods | RCT |
Participants | Postmenopausal with histologically confirmed breast cancer following completion of primary therapy |
Interventions | Moderate intensity aerobic training performed on a treadmill, moderate to high intensity aerobic training performed on a motorized treadmill, or attention control comprised of stretching |
Outcomes | The primary outcome is VO2 peak and the secondary outcomes include physiologic determinants of VO2 peak, pulmonary function, cardiovascular O2 delivery, brachial artery endothelial function, QoL, fatigue, and depression |
Starting date | August 2010 |
Contact information | Lee W. Jones, Duke University Medical Center, Durham NC USA |
Notes | Published protocol. Registered at ClinicalTrials.gov (NCT0118367) |
Jones 2010a.
Study name | Lung Cancer Exercise Training Study (LUNGEVITY) |
Methods | RCT |
Participants | Postoperative small cell lung cancer patients who had surgery between 6 and 36 months earlier |
Interventions | Aerobic training on either treadmill or cycle ergometer, resistance training using stationary weight machines, combination training, or an attention control group, comprised of progressive stretching and social interaction |
Outcomes | The primary outcome is VO2 peak and secondary outcomes include QoL, fatigue, dyspnea, and depression |
Starting date | January 2010 |
Contact information | Lee W. Jones, Duke University Medical Center, Durham NC USA |
Notes | Published protocol. Registered at ClinicalTrials.gov (NCT01068210) |
Kampshoff 2010.
Study name | Resistance and Endurance exercise After Chemotherapy (REACT) |
Methods | RCT |
Participants | Patients with histologically confirmed primary breast, colon or ovarian cancer, or lymphomas with no indication of recurrent or progressive disease, who have completed adjuvant chemotherapy with curative intention |
Interventions | High‐intensity resistance training, low to moderate intensity resistance training, or behavioral motivational counseling |
Outcomes | The primary outcome is cardiorespiratory fitness, muscle strength, and fatigue. Secondary outcomes are QoL, body composition, bone mineral density, neuropathy, objective and self‐reported physical activity, mood and sleep disturbance, functioning in daily life, return to work, cost from a social perspective, adverse events, compliance, and satisfaction with the intervention |
Starting date | March 2010 |
Contact information | Caroline S Kampshof EMGO Institute for Health and Care Research, Department of Public and Occupational Health, VU University Medical Center, Amsterdam, The Netherlands |
Notes | Published protocol. Registered at the Netherlands Trial Register NTR2153 |
Persoon 2010.
Study name | Exercise Intervention after Stem Cell Transplantation (EXIST) |
Methods | Pilot study followed by RCT |
Participants | Patients with multiple myeloma or non‐Hodgkin lymphoma |
Interventions | 18‐week high‐intensity resistance and interval training physical exercise program and counseling compared with usual care |
Outcomes | Primary outcome is cardiorespiratory fitness, muscle strength, and fatigue. Secondary outcomes are body composition, bone mineral density, QoL, neuropathy, objective and self reported physical activity level, mood disturbance, functioning in daily life, return to work, and cost from a social perspective |
Starting date | March 2010 |
Contact information | Marie Jose Kersten, Department of Hematology, Academic Medical Center, University of Amsterdam, The Netherlands |
Notes | Published protocol. Registered at the Netherlands Trial Register (NTR2341) |
Saxton 2006.
Study name | Effect of a lifestyle intervention in women recovering from breast cancer treatment |
Methods | RCT |
Participants | Women who have undergone appropriate treatment for operable breast cancer and are no longer undergoing chemotherapy or radiation therapy |
Interventions | lifestyle intervention (incorporating dietary energy restriction in conjunction with aerobic exercise training compared with usual care |
Outcomes | Primary outcome measures include body weight and body composition. Secondary outcomes include psychological stress assessed using the Perceived Stress Scale, depression assessed using the Beck Depression Inventory, cardiorespiratory fitness, QoL assessed using the FACT‐G and FACT‐B, physical activity behavior, and biomarkers associated with disease recurrence and physiologic health status |
Starting date | 2006 |
Contact information | John M Saxton Center for Sport and Exercise Science, Sheffield Hallam University, Sheffield, UK |
Notes | Published protocol. Trial Registration: ISRCTN08045231 |
Sekse 2011.
Study name | Rehabilitation of women following treatment for gynaecological cancer |
Methods | RCT |
Participants | Women who have completed curative treatment for gynecologic cancer |
Interventions | Group physical training versus education and counseling versus control |
Outcomes | Outcomes include QoL (global and health‐related), coping, fatigue, sexuality, anxiety and depression |
Starting date | 2011 |
Contact information | Ragnhild Johanne Tveit Sekse, Haukeland University Hospital, Bergen, Norway |
Notes | Published abstract |
Spence 2007.
Study name | Supervised exercise rehabilitation program for colorectal cancer survivors |
Methods | RCT |
Participants | Patients with colorectal cancer who have had surgery and are due to complete adjuvant chemotherapy |
Interventions | ImPACT program (I'm Physically Active after Cancer Treatment), an aerobic exercise session versus usual care |
Outcomes | The primary outcome is fatigue and secondary outcomes include cardiorespiratory fitness, biomarkers of health, QoL, program acceptance, adherence and compliance, and safety |
Starting date | January 2006 |
Contact information | Rosalind R. Spence, School of Human Movement Studies, The University of Queensland, Brisbane, Australia |
Notes | Published protocol. Registered at the Australian New Zealand Trial Register (ACTRN 012606000395538) |
Vardy 2010.
Study name | CHALLENGE |
Methods | RCT |
Participants | Patients with resected stage II or III colon cancer who have completed adjuvant therapy from Australia and Canada |
Interventions | 36 month physical activity program versus standard of care |
Outcomes | Outcomes include fatigue, QoL, depression, anxiety, sleep, body composition, exercise behavior and fitness, as well as an economic evaluation of the program |
Starting date | 2010 |
Contact information | J. Vardy, University of Sydney, NSW, Australia |
Notes | Published abstract |
Walsh 2010.
Study name | Prescribed Exercise After CHemotherapy (PEACH) |
Methods | RCT |
Participants | Patients with diagnosis of solid tumor and completion of adjuvant chemotherapy or radiation therapy with curative intent within the preceding 2 to 4 months |
Interventions | Exercise training using treadmills, cycle ergometers, and rowing machine or stepper or other aerobic exercise versus usual care |
Outcomes | The primary outcome is physical fitness and secondary outcomes include QoL, current activity level, cancer‐related fatigue, and satisfaction |
Starting date | January 2010 |
Contact information | Julie M. Walsh, Discipline of Physiotherapy, Trinity Centre for Higher Sciences, St. James's Hospital, Dublin, Ireland |
Notes | Published protocol. Registered at ClinicalTrials.gov (NCT01030887) |
BSI: Brief Symptom Inventory; EORTC QLQ‐C30: European Organization for Research and Treatment of Cancer Quality of Life Questionnaire Core Module; FACT‐B: Functional Assessment of Cancer Therapy ‐ Breast; FACT‐G: Functional Assessment of Cancer Therapy ‐ General; HRQoL: health‐relate quality of life; QoL: quality of life; POMS: Profile of Mood State; RCT: randomized controlled trial
Differences between protocol and review
This review included trials that included both participants who were undergoing active cancer treatment for their primary or recurrent cancer and those who had completed active treatment for their cancer. This revised inclusion criteria was applied to studies that did not have the majority of participants undergoing active treatment for their primary or recurrent cancer. As discussed previously, for only two outcomes (depression and social functioning) were there more than one trial with both participants who were currently undergoing active cancer treatment and those who had completed active treatment for their cancer. We observed no difference in findings when trials including participants currently undergoing active treatment for their cancer were excluded from the analyses.
We have included a 'Summary of findings' table instead of calculating numbers needed to treat for a beneficial effect (NNTB) for the review findings.
Contributions of authors
Shiraz I. Mishra: content expert; contributed by conceptualization of the review, identifying trials eligible for the review, extracting data for trials meeting the inclusion criteria, preparing the data tables, analyzing the data, and writing the review.
Roberta W. Scherer: methodologic expert; contributed by identifying trials eligible for the review, extracting data for trials meeting the inclusion criteria, preparing the data tables, analyzing the data, and contributing to writing the review.
Paula M. Geigle: content expert; contributed by extracting data for trials meeting the inclusion criteria and providing editorial input.
Debra R. Berlanstein: information specialist; contributed to development of the search strategy, conducting all the electronic database searches, and retrieving potentially eligible trials.
Ozlem Topaloglu: contributed by extracting data for trials meeting the inclusion criteria.
Carolyn C. Gotay: content expert; contributed by conceptualization of the review, providing editorial input, data collection, design and implementing of the search strategy, extraction of data for trials meeting the inclusion criteria.
Claire Snyder: content expert; contributing by providing editorial input and expertise on analysis and interpretation of HRQoL measures.
Sources of support
Internal sources
None, Other
External sources
-
Cancer Restitution Funds to the State of Maryland, USA
Restitution funds from tobacco companies awarded to the University of Maryland
-
National Institute for Health Research (NIHR) Health Technology Assessment programme, UK
HTA Project: 10/81/01 ‐ Exercise interventions for the management of health related quality of life and fatigue in cancer survivors during and after treatment
Declarations of interest
The authors declare no conflict of interest.
Edited (no change to conclusions)
References
References to studies included in this review
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