Table 2.
Included sleep intervention studies
| First author and year | Design | Participants | Sleep measure | Measure objective NCF | Measure self-reported NCF | Intervention | Key findings |
|---|---|---|---|---|---|---|---|
|
Gregoire 2020 [45] PSYCHO-ONCOLOGY |
RCT | 95 cancer survivors more than a year after active treatment completion | ISI | - | FACT-Cog | Group intervention consisting of self-care and self-hypnosis vs waitlist control |
Sleep: sleep difficulties decreased (d = 0.58 p < 0.001) in the group intervention sr-NCF: sr-NCF improved in the intervention group (perceived cognitive impairment: d = − 0.43, p = 0.020; perceived cognitive abilities: d = − 0.51, p = 0.004) |
|
Janelsins 2016 [46] INTEGRATIVE CANCER THERAPIES |
RCT | 328 cancer survivors | PSQI | - | MDASI memory item | Yoga program aimed at improving sleep vs control | sr-NCF: sr-NCI decreased more in the yoga group (-0.60) compared to the control group (− 0.16), p < 0.05 |
|
Liou 2020 [47] CANCER |
RCT | 99 patients who completed active treatment at least 1 month prior to the study | ISI | Buschke Selective Reminding Test | Brown Attention-Deficit Disorder Scale | Acupuncture vs CBT-I |
oNCF: Acupuncture group showed improvement on all trials of the BSRT while the CBT-I group only improved on one trial, there was no significant difference between the two groups (p > 0.05) sr-NCF: both acupuncture (D = 0.54 and 0.65) and CBT-I (D = 0.73 and 0.84) showed improvement at 8 and 20 weeks on the BADDS (p < 0.001). There was no significant difference between the two groups (p = 0.28) |
|
Matthews 2014 [44] ONCOLOGY NURSING FORUM |
RCT | 56 BC survivors with chronic insomnia |
Sleep diary ISI |
- | AFI | CBT-I vs behavioural placebo treatment |
Sleep: multiple sleep measures improved in the CBT-I group sr-NCF: The CBT-I group showed a small non-significant improvement compared to the control group on attentional function, d = 0.56, p = .07 |
|
Simeit 2004 [48] SUPPORT CANCER CARE |
N-RCT | 158 patients with various malignancies | PSQI | - | EORTC QLQ-C30 cognitive scale | Progressive muscle relaxation vs autogenic training vs control |
Sleep: both intervention groups improved on sleep quality Sr-NCF: All groups improved over time on the cognitive functioning sub-scale, F = 14.1, p < 0.001. There was no significant difference between groups |
Abbreviations: MDASI MD Anderson Symptom Inventory, CBT-I Cognitive Behavioural Therapy for Insomnia