Type of trials | ||
 Implementation trials | 55 | 68.8% |
 Type II hybrid trials | 15 | 18.8% |
 Type III hybrid trials | 10 | 12.5% |
Implementation strategy | ||
 Single strategy | 24 | 30.0% |
 Multicomponent strategy | 56 | 70.0% |
Comparator | ||
 Usual care/no intervention | 60 | 75.0% |
 Active comparatora | 20 | 25.0% |
Evidence-based intervention | ||
 Clinical guidelines | 18 | 22.5% |
 Vaccinations | 9 | 11.3% |
 Disease screening | 12 | 15.0% |
 Disease management programme | 5 | 6.3% |
 Otherb | 36 | 45.0% |
Implementation outcome | ||
 Adoption | 52 | 65.0% |
 Fidelity | 12 | 15.0% |
 Acceptability/feasibility | 3 | 3.8% |
 Combinationsc | 13 | 16.3% |