Data-based studies by level of the Ecological Model of Health Promotion and world region*
| Ecological model level | Arab region | Americas | Europe | Africa | Asia | Global |
|---|---|---|---|---|---|---|
| Intrapersonal | N=23 | N=48 | N=5 | N=6 | N=1 | |
| Interpersonal | N=38 | N=35 | N=1 | N=2 | N=10 | N=1 |
| Institutional/organisational | N=4 | N=4 | N=1 | |||
| Community | N=4 | N=5 | N=1 | |||
| Policy | N=3 | N=7 | N=2 |
*The total N is greater than 131 as several articles include more than one level. The level of each of the data-based articles is listed in the reference list. References30–67 were coded as part of the methodological analysis but not referenced directly in the text.