Table 1.
Descriptive characteristics of the sample on the outcome measures at baseline.
| Total sample | Experimental schools | Control schools | ||||||
| Variable |
N Total = 1,323a |
Total N = 685 |
Males N = 301 |
Females N = 383 |
Total N = 674 |
Males N = 337 |
Females N = 336 |
|
| Age (years) | 1,283 | 9.6 (0.9) | 9.6 (0.9) | 9.7 (0.9) | 9.6 (0.9) | 9.6 (0.9) | 9.6 (0.9) | 9.6 (0.9) |
| % Female | 1,323 | 53.0% | 56.0% | --- | --- | 49.6% | --- | --- |
| Anthropometric data | ||||||||
| Height (cm) | 1,286 | 138.2 (7.9) | 138.5 (7.9) | 138.8 (7.7) | 138.2 (8.1) | 138.0 (7.9) | 138.6 (7.7) | 137.4 (8.0) |
| Weight (kg) | 1,281 | 35.6 (9.3) | 35.6 (9.2) | 35.4 (8.8) | 35.8 (9.5) | 35.6 (9.5) | 36.2 (9.3) | 34.9 (9.6) |
| Body mass index (kg/m2) | 1,279 | 18.4 (3.4) | 18.4(3.3) | 18.2 (3.2) | 18.5 (3.4) | 18.5 (3.5) | 18.6 (3.4) | 18.3 (3.6) |
| % Overweight | 1,279 | 19.1 | 18.8 | 21.5 | 16.1 | 19.5 | 16.4 | 21.9 |
| % Obese | 1,279 | 8.0 | 7.7 | 7.4 | 8.1 | 8.4 | 6.6 | 9.7 |
| Screen time (hours/week) | ||||||||
| Child report | 1,161 | 29.6 (23.5) | 28.6 (22.5) | 34.0 (24.6) | 24.0 (19.4) | 30.6 (24.4) | 36.1 (27.4) | 25.1 (19.5) |
| Parent report | 980 | 22.1 (12.8) | 20.7 (12.7) | 22.0 (12.5) | 19.7 (12.8) | 23.3 (12.8) | 26.1 (14.1) | 20.6 (10.9) |
| Fruit and vegetable consumption | ||||||||
| Child report (servings/day) | 1,101 | 4.5 (3.1) | 4.9 (3.2) | 4.5 (3.1) | 5.3 (3.3) | 4.1 (2.9) | 4.1 (3.2) | 4.0 (2.5) |
| Parent report (servings/week) | 961 | 24.1 (13.5) | 25.4 (14.1) | 24.9 (14.0) | 25.7 (14.2) | 23.0 (12.8) | 22.8 (12.9) | 23.2 (12.7) |
| Physical activity | ||||||||
| Pedometer (steps/day) | 826 | 11,665 (3,096) | 11,735 (3,197) | 13,058 (3,555) | 10,861 (2,544) | 11,594 (2,993) | 12,412 (3,210) | 10,832 (2,557) |
aSample sizes vary due to missing data.