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. 2018 Mar 26;13:1021–1035. doi: 10.2147/COPD.S155622

Table 3.

Characteristics of included studies

Reference (year), country Recruitment setting Sample size Severity of COPD Participant characteristics Methods Analysis
Booth et al (2003)14 UK Respiratory clinical within a university teaching hospital 10 3 or 4 on modified
MRC 4-point scale
Male =6
Age range =51–80 years
Semistructured interviews Qualitative: thematic
Cicutto et al (2004)35 Canada Community 42 Physician diagnosed COPD
Daily symptoms that limit activities
Male =55%
Age range =54–74 years
Focus groups Qualitative: constant comparative
Ek et al (2011)36 Sweden Pulmonary specialist clinic 4 COPD as primary diagnosis
LTOT (16–18 hours a day)
Male =1
Age range =54–71 years
Longitudinal qualitative interviews Qualitative: phenomenological hermeneutical
Ellison et al (2012)15 UK Community-based COPD outpatient clinic 14 Spirometry confirmed diagnosis of COPD Male =7
Age range =49–79 years
In-depth semistructured interviews Qualitative: constant comparative
Gore et al (2000)16 UK Chest clinic 50 FEV1 <0.751
At least one admission for hypercapnic respiratory failure
Male =44%
Mean age =70.5 years
Semistructured interviews
Quality of life tools
Document review
Qualitative: thematic
Gullick and Stainton (2006)38 Australia Three teaching hospitals 15 Severe emphysema
FEV1 range 15%–51%
Male =9
Age range =55–77 years
Semistructured interviews Qualitative: hermeneutic phenomenology
Guthrie et al (2001)42 UK Not reported (sample taken from patients participating in a larger study) 37 (20 at second interview) Severe COPD Male =8
Mean age =67 years (sample of 20)
Longitudinal semistructured interviews Qualitative
Gruffydd-Jones et al (2007)34 UK District general hospital 25 Postadmission with a diagnosis of an acute exacerbation of COPD Male =11
Mean age =76 years
Standardized measures Hospital records Semistructured interviews Focus groups Quantitative: descriptive statistics Qualitative: interpretive phenomenology
Gysels and Higginson (2009)17 UK Hospital respiratory clinics, specialist respiratory nurses’ rounds and consultations, “Breathe Easy” service user meetings, and a GP practice disease register 18 Diagnosis of COPD
Daily problems of breathlessness
Male =7
Age range =52–78 years
Participant observation In-depth interviews Qualitative: grounded theory
Gysels and Higginson (2010)18 UK Hospital respiratory clinics, specialist respiratory nurses’ rounds and consultations, Breathe Easy service user meetings, and a GP practice disease 18 Breathlessness as a problematic symptom of COPD Male =7
Median age:
Outpatients =69 years
Community =70 years
Participant observation In-depth interviews Qualitative: narrative
Hayle et al (2013)40 UK NHS Trust and independent hospice 8 Primary diagnosis of COPD
Accessing specialist palliative care
Male =5
Age range =63–77 years
Semistructured interviews Qualitative: hermeneutic phenomenology
Hasson et al (2008)30 UK Hospital 13 FEV1 <30% or LTOT or noninvasive ventilation
Optimal drug therapy
Male =10
Median age =65 years
Semistructured interviews Qualitative
Jackson et al (2012)37 Canada Acute care nursing unit during admission 4 Diagnosis of COPD Male =1
Age range =57–58 years
Multiple case study methods Qualitative: thematic
Jones et al (2004)32 UK Primary care practices 16 Maximal therapy for COPD
Considered to be in last year of life
Male =8
Age range =62–83 years
Semistructured interviews Qualitative: thematic
Lindgren et al (2014)27 Norway Three GP practices and an outpatient pulmonary rehabilitation clinic 8 Diagnosed with mild or moderate COPD Male =3
Age range =60–74 years
Semistructured interviews Qualitative: phenomenological hermeneutic
Lowey et al (2013)33 USA Two Medicare-certified home health agencies 10 Oxygen-dependent COPD Not reported Semistructured interviews Qualitative: thematic
MacPherson et al (2013)19 UK GP practice and hospital respiratory team 10 Severe COPD (Gold Standards Framework criteria) Male =9
Age range =58–86 years
Semistructured interviews Qualitative: grounded theory
McDonald et al (2013)25 Australia Hospital-based respiratory ambulatory care clinics based 7 Confirmed diagnosis of COPD FEV1% predicted mean =44 Male =3
Mean age =68.7 years
In-depth semistructured interviews Qualitative: thematic
Nykvist et al (2014)39 Sweden Primary care 6 Diagnosis of COPD Female =6
Age not reported
Narrative interviews Qualitative: narrative
Odencrants et al (2005)43 Sweden Five primary health care clinics 13 A diagnosis of COPD according to ICD-10 FEV1 <50% Male =5
Mean age =68.9 years
Self-reported diary Semistructured interviews Qualitative: content
Oliver (2001)24 UK One GP practice and a district general hospital 17 Diagnosis of COPD FEV1 <50% of predicted value Male =12
Age range =59–75 years
Semistructured interviews Qualitative: thematic
Partridge et al (2011)20 UK, France Italy, Spain Germany Prerecruited panel who had agreed to take part in research opinion studies 719 MRC score >3 Male (%) =30.5
Mean age =62.4 years
Quantitative questionnaire- based survey Quantitative
Philip et al (2012)21 Australia Respiratory outpatient hospital in a tertiary hospital 10 COPD Recent admission for a life-threatening exacerbation Male =6
Age range =55–76 years
In-depth semistructured interviews Qualitative: thematic
Rodgers et al (2007)22 UK Pulmonary rehabilitation program within a community hospital 23 COPD patients who had attended pulmonary rehabilitation Male =14
Mean age for each focus group (×4): 65, 68, 63, 70
Focus groups Qualitative: template
Schroedl et al (2014)28 USA Academic medical center 20 History of COPD Hospital admission following exacerbation Male =9
Age range =52–83 years
Semistructured interviews Qualitative: thematic
Seamark et al (2004)29 UK GP practice 10 Diagnosis of COPD FEV1 <40% predicted Male =9
Age range =57–85 years
Semistructured interviews Qualitative: interpretive phenomenological
Skilbeck et al (1998)45 UK Health district 63 Diagnosis of chronic bronchitis, emphysema, chronic asthma, pneumoconiosis, bronchiectasis, nonspecific COAD; admission in last 6 months with exacerbation for 7+ days Male =33
Age range =55–80 years
In-depth interviews Quality of life/resource use questionnaires Qualitative: content Quantitative: descriptive statistics
White et al (2011)26 UK GP practices 163 Diagnosis of COPD Two of the following: FEV1 <40%, hospital admission for COPD in last 12 months, long-term oxygen therapy, corpulmonale, use of oral steroids, housebound Male =50%
Mean age =71.63
Interview study Quantitative: statistical analysis Qualitative: thematic
Wilson et al (2008)44 Canada Pulmonary outpatients 12 Diagnosis of COPD, chronic bronchitis or emphysema; hospital admission for exacerbation in last 12 months; continuous oxygen, and considered to be in last year of life Not reported Longitudinal semistructured interviews Qualitative: constant comparison
Wortz et al (2012)23 USA Subset of existing trial within university health science center 47 Physician diagnosis of COPD Male =53%
Mean age =68.4
In-depth interviews Qualitative: thematic

Abbreviations: COAD, chronic obstructive airways disease; COPD, chronic obstructive pulmonary disease; FEV1, forced expiratory volume in 1 second; GP, general practitioner; ICD-10, International Classification of Disease – version 10; LTOT, long-term oxygen therapy; MRC, Medical Research Council.