TABLE 2.
Longitudinal analyses of the introduction of physical activity spaces on outdoor exposure at age 9 years and the change in outdoor exposure from 6 to 9 years, stratified by ethnic background, net household income at baseline, and maternal education level
| Intervention/control (n) | Outdoor exposure at age 9 y | Intervention/control (n) | Change in outdoor exposure | |||
|---|---|---|---|---|---|---|
| β (95% CI) (h/wk) | P | β (95% CI) (h/wk change) | P | |||
| All* | 218/1779 | 0.429 (−0.262 to 1.120) | .22 | 171/1455 | 0.080 (−1.118 to 1.278) | .90 |
| Ethnic background† | ||||||
| Dutch | 115/1234 | 0.274 (−0.648 to 1.197) | .56 | 98/1057 | 0.149 (−1.369 to 1.667) | .85 |
| Non-Dutch | 103/545 | 0.611 (−0.443 to 1.665) | .26 | 73/398 | 0.156 (−1.832 to 2.144) | .88 |
| Net household income* | ||||||
| Higher | 104/1007 | 0.225 (−0.704 to 1.153) | .64 | 85/855 | −0.609 (−2.184 to 0.966) | .45 |
| Lower | 113/754 | 0.783 (−0.259 to 1.824) | .14 | 85/587 | 0.640 (−1.224 to 2.505) | .50 |
| Maternal education* | ||||||
| Higher | 123/1107 | −0.262 (−1.117 to 0.594) | .55 | 103/929 | −0.928 (−2.358 to 0.501) | .20 |
| Lower | 92/658 | 1.329 (0.150 to 2.508) | .03 | 66/517 | 1.676 (−0.488 to 3.840) | .13 |
*Adjusted for season of data collection, age, sex, and ethnic background. †Adjusted for season of data collection, age, and sex. CI = confidence interval.