| Total N (%) | |
---|---|---|
Study design | ||
 Cluster RCT | 43 | 53.8% |
 Individual RCT | 37 | 46.3% |
Country | ||
 North America | 51 | 63.8% |
 Europe | 23 | 28.8% |
 Rest of the worlda | 6 | 7.5% |
Setting | ||
 Primary care | 72 | 90.0% |
 Secondary care inpatient | 7 | 8.8% |
 Otherb | 1 | 0.01% |
Health condition/disease of interest | ||
 Cardiovascular disease | 12 | 15.0% |
 General health | 11 | 13.8% |
 Cancer | 11 | 13.8% |
 Vaccinations | 9 | 11.3% |
 Mental health | 7 | 8.8% |
 Diabetes | 5 | 6.3% |
 Respiratory disease | 3 | 3.8% |
 Otherc | 22 | 27.5% |