|
Control
|
Intervention
| | |
---|
|
n
|
Mean
|
SD
|
n
|
Mean
|
SD
|
Intervention vs Control adjusted difference in means (95 % CI)*
|
P value
|
---|
T2 Mean weekday MVPAa
|
262
|
53.15
|
19.61
|
246
|
56.55
|
21.92
|
−1.52 [−4.76 to 1.73]
|
0.359
|
T1 Mean weekday MVPAb
|
265
|
57.69
|
19.39
|
256
|
60.46
|
22.98
|
−1.52 [−5.03 to 1.98]
|
0.395
|
T2 MVPA weekday CACE analysis
|
508
|
-
|
-
|
-
|
-
|
-
|
−4.79 [−14.53 to 4.96]
|
0.336
|
T1 MVPA weekday CACE analysis
|
521
|
-
|
-
|
-
|
-
|
-
|
−4.86 [−18.41 to 6.91]
|
0.365
|
-
aPrimary comparison
-
bKey secondary outcome
- *For between group differences the control group is the reference group with models adjusted for baseline mean weekday MVPA, Local Education Authority, school size, school level deprivation, school level baseline MVPA, the number of total valid week days at T0, the number of total valid week days at T2 (or T1) and school-level clustering
-
MVPA moderate-to-vigorous physical activity
-
CACE complier Average Casual Effect (Instrumental variable regression model).
- T1 – 20-week follow-up
- T2 – one-year follow-up