Table 1. Anthropometric characteristics of children (n: 30431) stratified by sex (girls and boys) and age class (6–11 years old).
| Girls (n:14645) | Boys (n:15786) | P | |||||||||||||
|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|
| 6 years (n:845) | 7 years (n:3161) | 8 years (n:3176) | 9 years (n:2914) | 10 years (n:2690) | 11 years (n:1859) | 6 years (n:868) | 7 years (n:3377) | 8 years (n:3303) | 9 years (n:3228) | 10 years (n:2929) | 11 years (n:2081) | Sex | Age | S X A | |
| Stature (m) | 1.19±0.05 | 1.21±0.06 | 1.28±0.06 | 1.33±0.06 | 1.39±0.07 | 1.44±0.07 | 1.17±0.06 | 1.21±0.06 | 1.26±0.06 | 1.32±0.07 | 1.38±0.07 | 1.44±0.07 | <.001 | <.001 | <.001 |
| BM (kg) | 22.6±4.0 | 24.1±4.6 | 27.3±5.6 | 31.1±6.9 | 34.7±7.7 | 38.9±8.8 | 23.1±3.7 | 24.5±4.5 | 27.7±5.4 | 31.7±6.8 | 35.4±7.6 | 39.4±8.6 | <.001 | <.001 | 0.757 |
| BMI (kg·m-2) | 16.3±2.2 | 16.5±2.3 | 17.0±2.6 | 17.7±3.0 | 18.1±3.1 | 18.7±3.3 | 16.4±2.0 | 16.6±2.2 | 17.0±2.5 | 17.8±2.8 | 18.3±3.0 | 19.0±3.3 | 0.002 | <.001 | 0.056 |
All values are means ± SD. Significant according to a generalized linear model of the main effects of Sex (Girls vs Boys), Age, and Sex × Age interaction (S × A).