Exposure | SED change (n = 293) | LPA change (n = 271) | MVPA change (n = 267) | |||
---|---|---|---|---|---|---|
 | β | (95 % CI) | β | (95 % CI) | β | (95 % CI) |
School environment | N/A |  | N/A |  | (−0.25, 0.24) | |
Length of break | 0.10 | (−0.09, 0.28) | −0.036 | (−0.15, 0.08) | N/A |  |
Hours of PE | Â | Â | Â | |||
   no change (reference) | N/A |  | N/A |  |  |  |
   decrease |  |  |  |  | −1.46 | (−4.42, 1.49) |
   increase |  |  |  |  | 0.80 | (−2.01, 3.60) |
Physical activity policy | Â | Â | Â | |||
   no change (reference) |  |  |  |  |  |  |
   no/yes | −2.26 | (−7.51, 3.00) | 1.36 | (−1.97, 4.70) | 0.33 | (−2.63, 3.28) |
   yes/no | 1.89 | (−3.66, 7.43) | −0.28 | (−3.54, 3.00) | −1.06 | (−4.02, 1.91) |
Lunchtime extracurricular physical activity provision | Â | Â | Â | |||
   no change (reference) |  |  |  |  |  |  |
   no/yes | −5.32 | (−9.03, −1.61)** | 2.40 | (−0.07, 4.88) | 3.16 | (1.09, 5.23)** |
   yes/no | −7.00 | (−15.41, 1.42) | 4.63 | (−0.52, 9.77) | 2.71 | (−1.60, 7.02) |
Break time rule: screen-use | Â | Â | Â | |||
   no/no (reference) | N/A |  |  |  | N/A |  |
   no/yes |  |  | −1.27 | (−5.52, 2.98) |  |  |
   yes/no |  |  | # | # |  |  |
   yes/yes |  |  | −1.56 | (−6.77, 3.66) |  |  |
Compulsory outdoor break rule | Â | Â | Â | |||
   no change (reference) |  |  |  |  |  |  |
   no/yes | - | - | - | - | - | - |
   yes/no | 4.77 | (−0.32, 9.86) | −2.54 | (−5.44, 0.36) | −1.63 | (−4.54, 1.29) |