Characteristics of the children who participated and declined
| Characteristic | Participated (n=1088) | Declined (n=776) | p Value* |
| Age (years), mean (SD) | 5.71 (0.44) | 5.68 (0.57) | 0.185 |
| Height (cm), mean (SD) | 116.4 (5.8) | 116.1 (5.7) | 0.307 |
| Weight (kg), mean (SD) | 21.62 (3.55) | 21.73 (4.01) | 0.536 |
| Body mass index (kg/m2), mean (SD) | 15.87 (1.71) | 16.01 (2.02) | 0.107 |
| Boys, n (%) | 526 (47.0) | 397 (51.2) | 0.075 |
| Weight groups, n (%) | 0.018 | ||
| Underweight† | 85 (7.8) | 78 (10.1) | |
| Normal weight† | 850 (78.1) | 553 (71.7) | |
| Overweight† | 115 (10.6) | 104 (13.5) | |
| Obese† | 38 (3.5) | 36 (4.7) | |
| Overweight or obese | 153 (14.1) | 140 (18.2) | 0.017 |
*Students’ t- and χ2 tests.
†Based on body mass index.17