Table 2.
Mean difference in the children’s average sedentary minutes per day associated with different activities using multiple imputation (n=1223)*
| Exposure | Sedentary time (min/day): mean difference (95% CI) | p for gender interaction | ||||||
| All (n=1223) | Boys (n=556) | Girls (n=667) | ||||||
| Model 1 | Model 2 | Model 1 | Model 2 | Model 1 | Model 2 | |||
| Frequency child attends sport/exercise club at school | Never (ref) | 0 | 0 | 0 | 0 | 0 | 0 | 0.69 |
| 1–2 days/week | −4.2 (−22.5 to 14.0) |
−3.0 (−21.4 to 15.4) |
7.9 (−16.6 to 32.3) |
8.9 (−15.9 to 33.7) |
−13.0 (−38.3 to 12.4) |
−11.5 (−37.5 to 14.4) |
||
| 3–4 days/week | −31.1 (−50.7 to 11.5) |
−28.8 (−46.4 to 11.3) |
−18.7 (−41.8 to 4.4) |
−16.9 (−41.2 to 7.3) |
−40.1 (−71.7 to 8.5) |
−37.3 (−65.4 to –9.2) |
||
| 5 days/week | −18.7 (−42.9 to 5.6) |
−18.8 (−42.1 to 4.5) |
−9.6 (−37.7 to 18.4) |
−7.3 (−34.9 to 20.4) |
−26.0 (−66.8 to 14.8) |
−33.3 (−82.0 to 15.5) |
||
| p for trend | 0.02 | 0.01 | 0.17 | 0.23 | 0.05 | 0.04 | ||
| Frequency child attends sport/exercise club outside of school | Never (ref) | 0 | 0 | 0 | 0 | 0 | 0 | 0.81 |
| 1–2 days/week | 14.8 (−9.1 to 38.7) |
18.0 (−8.9 to 45.0) |
21.5 (−7.4 to 50.5) |
25.9 (−4.5 to 56.4) |
11.0 (−19.9 to 42.0) |
13.6 (−20.5 to 47.7) |
||
| 3–4 days/week | −7.2 (−27.0 to 12.6) |
−1.5 (−23.4 to 20.4) |
−1.0 (−32.8 to 30.8) |
4.8 (−27.1 to 36.6) |
−10.5 (−30.5 to 9.5) |
−4.1 (−27.3 to 19.0) |
||
| 5 days/week | −19.9 (−41.1 to 1.2) |
−15.5 (−37.7 to 6.8) |
−12.6 (−42.4 to 17.1) |
−7.7 (−36.5 to 21.1) |
−25.2 (−55.0 to 4.6) |
−20.6 (−52.1 to 11.0) |
||
| p for trend | 0.02 | 0.07 | 0.12 | 0.16 | 0.07 | 0.23 | ||
| Frequency child plays with friends/family outside near home | Never (ref) | 0 | 0 | 0 | 0 | 0 | 0 | 0.56 |
| 1–2 days/week | 0.77 (−28.5 to 30.0) |
2.3 (−28.0 to 32.7) |
19.2 (−16.5 to 55.0) |
21.2 (−14.4 to 56.8) |
−16.6 (−63.1 to 30.0) |
−15.6 (−65.0 to 33.9) |
||
| 3–4 days/week | −5.2 (−29.9 to 19.6) |
−2.8 (−29.4 to 23.7) |
7.6 (−28.4 to 43.5) |
10.6 (−25.5 to 46.6) |
−17.6 (−65.8 to 30.5) |
−16.1 (−67.4 to 35.3) |
||
| 5 days/week | −23.4 (−49.0 to 2.1) |
−24.1 (−50.8 to 2.7) |
−11.0 (−45.2 to 23.2) |
−10.2 (−44.4 to 24.0) |
−35.4 (−79.9 to 9.0) |
−37.8 (−86.6 to 10.9) |
||
| p for trend | 0.004 | 0.001 | 0.07 | 0.05 | 0.02 | 0.02 | ||
| Frequency child plays with friends/family in home/garden | Never (ref) | 0 | 0 | 0 | 0 | 0 | 0 | 0.90 |
| 1–2 days/week | 16.2 (−13.8 to 46.3) |
17.9 (−12.5 to 48.2) |
19.2 (−22.9 to 61.3) |
20.6 (−21.5 to 62.7) |
13.1 (−25.8 to 52.0) |
14.9 (−24.3 to 54.1) |
||
| 3–4 days/week | −3.9 (−28.8 to 20.9) |
−0.7 (−26.7 to 25.4) |
3.9 (−30.5 to 38.4) |
6.5 (−28.7 to 41.7) |
−10.7 (−46.6 to 25.3) |
−6.4 (−42.9 to 30.1) |
||
| 5 days/week | 5.3 (−22.9 to 33.5) |
6.1 (−22.5 to 34.7) |
9.9 (−32.5 to 52.3) |
11.6 (−31.2 to 54.4) |
1.2 (−39.2 to 41.5) |
0.6 (−40.2 to 41.5) |
||
| p for trend | 0.49 | 0.49 | 0.85 | 0.91 | 0.49 | 0.45 | ||
| Activity score (per unit) | −4.8 (−7.3 to 2.3) |
−4.6 (−7.0 to 2.1) |
−3.8 (−7.7 to 0.1) |
−3.4 (−7.2 to 0.4) |
−5.9 (−10.0 to 1.7) |
−5.9 (−10.2 to –1.6) |
0.41 | |
*Model 1 is adjusted for age and gender; model 2 is additionally adjusted for body mass index and Indices of Multiple Deprivation score.