Table 1 Differences Between Intervention and Waitlist Control Group Participants on Baseline Characteristics
| Â | Total Sample | Intervention | Waitlist | Sig. |
|---|---|---|---|---|
Students | N = 370 | N = 174 | N = 196 |  |
 Age, years | 14.50 (0.69) | 14.69 (0.62) | 14.34 (0.71) | <.001 |
 Gender, n (%) |  |  |  | .358 |
  Boy | 182 (49.19) | 90 (51.72) | 92 (46.94) |  |
  Girl | 188 (50.81) | 84 (48.28) | 104 (53.06) |  |
 PA, minutes/week | ||||
  Total PA | 1322.75 (822.09) | 1244.46 (826.80) | 1392.25 (813.68) | .046 |
  Vigorous PA | 411.70 (344.87) | 415.32 (354.90) | 408.48 (336.59) | .970 |
  Moderate PA | 437.74 (347.10) | 427.41 (332.27) | 446.92 (360.34) | .823 |
  Walking | 473.31 (409.73) | 401.73 (389.34) | 536.85 (417.81) | .001 |
 PA, MET-minutes/week | ||||
  Total PA | 6606.47 (4206.17) | 6357.89 (4288.37) | 6827.14 (4130.26) | .163 |
  Vigorous PA | 3293.58 (2758.96) | 3322.53 (2839.21) | 3267.88 (2692.75) | .970 |
  Moderate PA | 1750.98 (1388.38) | 1709.66 (1329.09) | 1787.66 (1441.38) | .823 |
  Walking | 1561.91 (1352.10) | 1325.71 (1284.82) | 1771.60 (1378.76) | .001 |
 Perceived autonomy support | 5.68 (0.89) | 5.73 (0.82) | 5.64 (0.95) | .343 |
Teachers | N = 29 | N = 16 | N = 13 |  |
 Age, years | 42.83 (9.53) | 42.13 (9.77) | 43.69 (9.54) | .668 |
 Teaching experience, years | 15.21 (9.48) | 14.81 (10.09) | 15.69 (9.04) | .809 |
 Provision of autonomy support | 5.39 (0.55) | 5.40 (0.55) | 5.39 (0.57) | .953 |
 Provision of control | 3.77 (0.94) | 4.10 (0.84) | 3.36 (0.93) | .032 |