Changes in physical activity from baseline to follow-up (12 months) by subgroup (gender, weight status at baseline and activity level at baseline) (Mean minutes of MVPA per day, % wear time in MVPA, % meeting physical activity guidelines)
| Subgroups | Outcome | Intervention | Control | Intervention-Control | Group× time p value | ||||
|---|---|---|---|---|---|---|---|---|---|
| BASELINE (n=524) | MIDPOINT (n=352) | p Value | BASELINE (n=435) | MIDPOINT (n=288) | p Value | Adjusted difference between treatment group (95% CI) | |||
| Gender | |||||||||
| Males | MVPA (min per day) | 62.7 (22.54) | 66.3 (27.19) | 0.17 | 59.4 (23.32) | 56.6 (19.81) | 0.27 | 6.47 (−1.84 to 14.78) | 0.02* |
| Percentage of wear time in MVPA | 8.0 (2.89) | 8.5 (3.72) | 0.19 | 7.5 (2.88) | 7.2 (2.57) | 0.34 | 0.90 (−0.13 to 1.93) | 0.02* | |
| Females | MVPA (min per day) | 46.6 (16.45) | 45.7 (15.50) | 0.55 | 48.9 (17.63) | 45.8 (17.71) | 0.09 | −0.94 (−5.62 to 3.74) | 0.35 |
| Percentage of wear time in MVPA | 5.8 (2.06) | 5.8 (1.98) | 0.74 | 6.1 (2.21) | 5.7 (2.17) | 0.14 | −0.06 (−0.55 to 0.42) | 0.34 | |
| Weight status at baseline | |||||||||
| Underweight/healthy weight | MVPA (min per day) | 54.9 (21.83) | 54.9 (21.98) | 0.98 | 55.4 (21.72) | 53.1 (19.22) | 0.25 | 1.82 (−4.22 to 7.87) | 0.10 |
| Percentage of wear time in MVPA | 6.9 (2.84) | 6.9 (2.89) | 0.95 | 6.9 (2.71) | 6.7 (2.48) | 0.52 | 0.28 (−0.39 to 0.95) | 0.25 | |
| Overweight/obese | MVPA (min per day) | 49.8 (17.82) | 50.3 (21.23) | 0.88 | 49.3 (19.47) | 44.7 (15.68) | 0.12 | 1.74 (−5.80 to 9.29) | 0.29 |
| Per centage of wear time in MVPA | 6.2 (2.07) | 6.4 (2.79) | 0.63 | 6.2 (2.49) | 5.5 (1.88) | 0.07 | 0.28 (−0.57 to 1.12) | 0.14 | |
| Activity level at baseline | |||||||||
| Active | MVPA (min per day) | 76.9 (16.70) | 78.7 (21.06) | 0.43 | 77.1 (15.49) | 75.4 (13.52) | 0.41 | 4.54 (−1.22 to 10.30) | 0.12 |
| Percentage of wear time in MVPA | 9.6 (2.31) | 10.1 (2.97) | 0.16 | 9.5 (2.11) | 9.3 (1.89) | 0.65 | 0.64 (−0.15 to 1.44) | 0.11 | |
| Inactive | MVPA (min per day) | 41.9 (10.80) | 41.7 (11.50) | 0.77 | 41.5 (10.67) | 41.2 (11.55) | 0.77 | −0.21 (−2.42 to 1.99) | 0.85 |
| Per centage of wear time in MVPA | 5.4 (1.44) | 5.3 (1.54) | 0.53 | 5.3 (1.49) | 5.2 (1.52) | 0.71 | −0.04 (−0.34 to 0.26) | 0.81 | |
MVPA, moderate-to-vigorous physical activity.