Description of cases and controls
| Cases n = 402 (%) | Controls n = 283 (%) | Test statistic | |
|---|---|---|---|
| *p<0.05. | |||
| Female | 227 (56) | 164 (58) | |
| Male | 175 (44) | 119 (42) | χ2 = 0.15, p = 0.70 |
| Mean age (years) | 7.13 | 7.36 | t = 1.63, p = 0.10 |
| Child height (mm) | 1280 | 1299 | t = 2.15, p = 0.03* |
| Child weight (kg) | 28.0 | 29.0 | t = 1.65, p = 0.10 |
| Body mass index (kg/m2) | 16.8 | 16.9 | t = 0.67, p = 0.51 |