4. Risk of bias of included randomised controlled trials.
|
Review short title (reference) |
Exercise for CHD (Heran 2011) |
Exercise for HF (Taylor 2014b) |
Psychological for CHD (Whalley 2011) |
Education for CHD (Brown 2011) |
Home vs. centre (Taylor 2014a) |
Uptake and adherence (Karmali 2014) |
Total |
| Number of RCTs with low risk of bias (%) | |||||||
| Random sequence generation | 8 (17) | 10 (30) | 7 (29) | 9 (69) | 4 (24) | 9 (50) | 47 (31) |
| Allocation concealment | 7 (15) | 6 (18) | 7 (29) | 7 (54) | 7 (41) | 8 (44) | 41 (27) |
| Groups balanced at baseline | a27 (57) | 32 (97) | a10 (42) | 12 (92) | 14 (82) | ab9 (56) | 103 (68) |
| Outcome blinding | 4 (9) | 11 (33) | 5 (21) | 4 (31) | 7 (41) | 5 (28) | 36 (24) |
| Selective reporting | 0 (0) | 31 (94) | 16 (67) | 12 (92) | 16 (94) | 15 (83) | 90 (59) |
| Loss to follow‐up < 20% | 33 (70) | 29 (88) | 13 (54) | 10 (77) | 11 (65) | 4 (22) | 99 (65) |
| Intention‐to‐treat analysis | a19 (40) | 29 (88) | 22 (92) | 11 (85) | 14 (82) | ab7 (44) | 101 (66) |
| Groups received same treatment apart from intervention* | a21 (45) | 21 (64) | a16 (67) | 11 (85) | 15 (88) | ab15 (94) | 100 (66) |
CHD: coronary heart disease; HF: heart failure; RCT: randomised controlled trial.
a Risk of bias was not reported within the review, but was assessed by the authors of this overview.
b Denominator = 16 as 2 studies were unavailable to us as they were unpublished degree dissertations.