Secondary outcomes at baseline and postintervention; results show change adjusted for baseline
| Control (SD) | Intervention (SD) | ||||
|---|---|---|---|---|---|
| Baseline | Follow-up | Baseline | Follow-up | Difference adjusted for baseline (95% CI) | |
| Types of PA | 19.2 (12.8) | 14.0 (9.4) | 19.8 (15.2) | 16.6 (14.0) | 2.3 (−0.2 to 4.7) p=0.07 |
| Self-efficacy for PA | 17.7 (0.4) | 17.2 (3.6) | 17.8 (3.0) | 17.6 (3.2) | 0.3 (−0.4 to 1.0) p=0.36 |
| Peer support | 6.3 (2.6) | 5.3 (1.9) | 5.9 (2.2) | 5.5 (2.2) | 0.5 (0.1 to 0.9) p=0.03 |
| Friendships | 2.8 (1.1) | 2.9 (1.0) | 2.8 (1.1) | 2.9 (1.1) | −0.1 (−0.3 to 0.1) p=0.37 |
| Well-being | 44.5 (0.9) | 43.3 (1.0) | 45.0 (0.5) | 45.5 (0.5) | 1.8 (0.1 to 3.4) p=0.04 |
| Shyness | 13.9 (3.5) | 14.0 (3.7) | 13.7 (3.4) | 13.7 (3.3) | −0.3 (−0.9 to 0.4) p=0.43 |
| Sociability | 13.5 (2.0) | 13.9 (1.9) | 13.7 (2.1) | 14.0 (1.8) | 0.1 (−0.4 to 0.5) p=0.74 |
| Barriers to PA | 29.7 (5.1) | 28.7 (5.3) | 29.1 (5.2) | 28.4 (5.4) | 0.1 (−1.1 to 1.2) p=0.91 |
Analyses not clustered for school as insufficient clusters.
PA, physical activity.