Table 1.
Characteristics of the nonoverweight and the overweight boys among study participants.
| Variables | Nonoverweight (n = 1355) |
Overweight (n = 231) |
P valuea |
|---|---|---|---|
| Age (years) | 12.0 (12.37) | 12.0 (12.39) | 0.594 |
| Birthweight (g) | |||
| <2500 | 6.0 | 8.9 | <0.001 |
| 2500–2999 | 29.1 | 23.0 | |
| 3000–3499 | 45.7 | 38.1 | |
| 3500–3999 | 17.4 | 24.8 | |
| 4000+ | 1.8 | 5.3 | |
| Only child (%) | 7.8 | 9.3 | 0.438 |
| Parent's obesity (%) | |||
| None | 69.5 | 41.2 | <0.001 |
| Father only | 20.9 | 32.3 | |
| Mother only | 5.6 | 16.2 | |
| Father and mother | 4.1 | 10.4 | |
| Exercise (%) | |||
| None | 9.5 | 16.1 | 0.005 |
| Sometimes | 8.4 | 10.3 | |
| Daily | 82.1 | 73.5 | |
| Sleeping hours (%) | |||
| 9.0+ | 24.4 | 21.1 | 0.785 |
| 8.0–8.9 | 53.5 | 55.4 | |
| 7.0–7.9 | 19.8 | 21.1 | |
| <7.0 | 2.3 | 2.5 | |
| Skipping breakfast (%) | 5.2 | 4.4 | 0.624 |
| Snack after dinner (%) | |||
| Seldom or none | 39.9 | 42.6 | 0.441 |
| Always or often | 60.1 | 57.4 | |
| Eating speed (%) | |||
| Fast | 21.8 | 47.2 | <0.001 |
| Medium | 59.6 | 46.3 | |
| Slow | 18.6 | 6.5 | |
| Eating until full (%) | 54.7 | 58.9 | 0.237 |
Except where indicated percentage (%), values are median (mean).
aChi-square test or Wilcoxon rank-sum test.