Category | N | % |
---|---|---|
Study design | ||
Cluster RCT | 47 | 94.0 |
RCT | 3 | 6.0 |
Duration of interventions, months | ||
3–12 | 32 | 64.0 |
> 12 | 18 | 36.0 |
Types of schools | ||
Elementary | 43 | 86.0 |
Secondary | 6 | 12.0 |
Mixed | 1 | 2.0 |
Income level of country | ||
High-income | 40 | 80 |
Middle income | 10 | 20 |
Types of interventions | ||
Single-component (n = 15) | ||
PA | 7 | 3.5 |
HE | 7 | 3.5 |
SP | 1 | 2.0 |
Multi-component (n = 35) | ||
PA + SP | 2 | 3.9 |
HE+SP | 5 | 9.8 |
PA + HE+/−SP | 10 | 19.6 |
PA + DI+/−SP | 3 | 5.9 |
HE+DI+/−SP | 7 | 13.7 |
PA + HE+DI+/−SP | 8 | 15.7 |