| N = 31 trials (%) |
---|---|
Did sample size/power calculations account for the cluster design? | |
 Not presented₳ | 11 (35%) |
 Yes, used patient-level data and accounted for clustering (e.g., random effects model) | 11 (35%) |
 Yes, used cluster-level summaries | 3 (10%) |
 No, used patient-level data without accounting for clustering | 3 (10%) |
 Unclear | 1 (3%) |
 Other¥ | 2 (6%) |
Did the analysis for primary outcome account for clustering? | |
 Yes, used patient-level data and accounted for clustering | 17 (55%) |
 Yes, used cluster-level summaries | 5 (16%) |
 No, used patient-level data without accounting for clustering ₱ | 7 (23%) |
 Unclear/other¥ | 2 (6%) |
Justification for utilizing a cluster randomized design (categories were not mutually exclusive) | |
 None provided | 16 (52%) |
 Avoid contamination | 15 (48%) |
 Logistical or administrative convenience | 2 (6%) |