Table 3.
Characteristics of the cluster randomised crossover trials
| Disease or domain under study |
n (%) (N = 83) |
|---|---|
| Infection control | 19 (23%) |
| Cardiovascular disease | 10 (12%) |
| Health services delivery | 9 (11%) |
| Infectious disease | 8 (10%) |
| General and public health | 5 (6%) |
| Medical training | 5 (6%) |
| Communication of health information | 4 (5%) |
| Pregnancy, childbirth, and early childhood | 3 (4%) |
| Mental health and behavioural conditions | 3 (4%) |
| Respiratory disease | 3 (4%) |
| Blood sample contamination | 3 (4%) |
| Cognition | 3 (4%) |
| Central nervous system and musculoskeletal disease | 2 (2%) |
| Oral health | 2 (2%) |
| Nutritional and metabolic disorders | 1 (1%) |
| Urogenital disease | 1 (1%) |
| Digestive disorders | 1 (1%) |
| Pain management | 1 (1%) |
| Type of intervention | |
| Intervention targeting the individual | 42 (51%) |
| Intervention targeting health care provider | 21 (25%) |
| Quality improvement intervention | 14 (17%) |
| Intervention resulting in change to the participant environment | 6 (7%) |
| Number of interventions | |
| 2 | 74 (89%) |
| 3 | 8 (10%) |
| 4 | 1 (1%) |
| Number of clusters - Median [IQR]; Range |
8 [3–21]; 2 – 268 |
| Unclear | 4 (5%) |
| Number of periodsa | |
| 2 | 53 (70%) |
| 3 | 8 (11%) |
| 4+ | 15 (18%) |
| Unclear | 7 (8%) |
| Cluster-period size - Median [IQR]; Range |
27 [14–77]; 2 – 1319 |
| Unclear | 17 (20%) |
aPercentages of non-missing data presented