Table 4.
Means and standard deviations by trial arm and linear mixed model adjusted for imbalance at baseline for accelerometer assessed secondary outcomes at T1 and T2
| Control | Intervention | |||||||
|---|---|---|---|---|---|---|---|---|
| n | Mean | SD | n | Mean | SD | Intervention vs Control adjusted difference in means (95 % CI)* | P value | |
| T2 | ||||||||
| Mean weekend day minutes of MVPA | 145 | 36.56 | 26.16 | 124 | 39.65 | 23.21 | −1.75 [−7.51 to 4.01] | 0.552 |
| Mean weekday CPM | 262 | 446.83 | 137.81 | 246 | 478.75 | 144.94 | −2.44 [−25.25 to 20.38] | 0.834 |
| Mean weekend CPM | 145 | 405.04 | 228.96 | 124 | 450.98 | 263.89 | −4.11 [−61.07 to 52.86] | 0.888 |
| Proportion of girls meeting 60 mins MVPA per weekday a | 262 | 0.32 | 0.47 | 246 | 0.39 | 0.49 | −1.18 [ −1.82 to 0.76] | 0.458 |
| Proportion of girls meeting 60 mins MVPA per weekend day a | 145 | 0.12 | 0.33 | 124 | 0.15 | 0.36 | −1.11 [−2.39 to −0.52] | 0.787 |
| Mean weekday sedentary mins | 262 | 533.01 | 80.54 | 246 | 515.12 | 80.22 | −6.79 [−23.60 to 10.03] | 0.429 |
| Mean weekend sedentary mins | 145 | 475.14 | 95.22 | 124 | 463.66 | 105.92 | 0.62 [−22.42 to 23.66] | 0.958 |
| T1 | ||||||||
| Mean weekend day minutes of MVPA | 159 | 42.57 | 27.71 | 130 | 48.92 | 32.19 | 1.26 [−5.70 to 8.22] | 0.723 |
| Mean weekday CPM | 265 | 500.35 | 177.32 | 256 | 529.42 | 157.72 | −7.48 [−35.06 to 20.11] | 0.595 |
| Mean weekend CPM | 159 | 492.21 | 371.47 | 130 | 543.67 | 284.39 | 6.27 [−72.10 to 84.65] | 0.875 |
| Proportion of girls meeting 60 mins MVPA per weekday a | 265 | 0.42 | 0.49 | 256 | 0.47 | 0.50 | −1.11 [−1.68 to −0.73] | 0.637 |
| Proportion of girls meeting 60 mins MVPA per weekend day a | 159 | 0.17 | 0.38 | 130 | 0.27 | 0.45 | −0.82 [−1.56 to −0.43] | 0.543 |
| Mean weekday sedentary mins | 265 | 522.96 | 85.46 | 256 | 502.91 | 87.01 | −7.72 [−27.32 to 11.87] | 0.449 |
| Mean weekend sedentary mins | 159 | 464.13 | 92.28 | 130 | 452.46 | 98.21 | - 8.94 [−31.91 to 14.04] | 0.446 |
*For between group differences the control group is the reference group with models adjusted for baseline value, LEA, school size, school level deprivation and school-level clustering
aOdds ratio presented in Coefficient column
MVPA moderate-to-vigorous physical activity
CPM counts per Minute