Table 3.
Age (years) of participants by health domain in the included studies evaluating specific mobile health apps (N=97).
| Health domains | Values, mean (SD) | Values, median (IQR) | Values, range |
| NCDa self-management | 57.7 (7.3) | 56.5 (64.2-52.6) | 45.0-70.9 |
| Mental health | 35.9 (5.9) | 36.6 (40.2-33.9) | 19.9-46.5 |
| Substance use | 40.8 (9.6) | 44.0 (48.8-35.3) | 20.5-49.9 |
| Nutrition | 44.0 (16.6) | 45.0 (60.0-27.2) | 22.0-64.7 |
| Physical activity | 47.1 (15.2) | 42.0 (63.6-38.0) | 26.8-68.0 |
| Weight loss | 42.5 (11.0) | 45.8 (49.6-35.2) | 20.0-54.4 |
| MLIb | 43.7 (18.7) | 39.0 (48.8-34.9) | 23.6-86.0 |
| Mindfulness | 43.7 (14.7) | 42.8 (52.8-33.5) | 20.2-70.9 |
| Other NCDs | 45.6 (10.3) | 43.6 (55.2-36.0) | 34.0-64.9 |
| All domains | 44.6 (12.9) | 42.9 (52.7-35.8) | 19.9-86.0 |
aNCD: noncommunicable disease.
bMLI: multicomponent lifestyle intervention.