OR of HBW group for overweight and obesity in different age groups
| HBW group (n=4981） | NBW group (n=4981） | Model 1† | Model 2‡ | Model 3§ | ||||
| n (%) | n (%) | OR† | 95% CI | AOR‡ | 95% CI | AOR§ | 95% CI | |
| Overweight | 760 (15.3)* | 653 (13.1) | 1.308* | 1.167 to 1.467 | 1.242* | 1.077 to 1.433 | 1.230* | 1.056 to 1.432 |
| Age 6–7 | 138 (15.8) | 132 (15.2) | 1.155 | 0.887 to 1.505 | 1.163 | 0.806 to 1.677 | 1.244 | 0.847 to 1.828 |
| Age 8–9 | 177 (15.4)* | 148 (12.9) | 1.422* | 1.118 to 1.808 | 1.492* | 1.111 to 2.005 | 1.508* | 1.102 to 2.062 |
| Age 10–11 | 116 (18.2)* | 88 (13.8) | 1.566* | 1.151 to 2.132 | 1.441 | 0.978 to 2.124 | 1.354 | 0.895 to 2.049 |
| Age 12–13 | 160 (15.7)* | 135 (13.3) | 1.318* | 1.026 to 1.693 | 1.123 | 0.823 to 1.534 | 1.043 | 0.739 to 1.471 |
| Age 14–15 | 80 (12.3) | 68 (10.4) | 1.269 | 0.899 to 1.793 | 1.139 | 0.726 to 1.787 | 1.292 | 0.788 to 2.118 |
| Age 16–18 | 89 (13.5) | 82 (12.5) | 1.160 | 0.839 to 1.604 | 1.155 | 0.779 to 1.711 | 1.078 | 0.700 to 1.659 |
| Obesity | 841 (16.9) | 528 (10.6) | 1.791* | 1.591 to 2.016 | 1.673* | 1.436 to 1.949 | 1.611* | 1.368 to 1.897 |
| Age 6–7 | 162 (18.6)* | 108 (12.4) | 1.658* | 1.276 to 2.168 | 1.692* | 1.158 to 2.470 | 1.741* | 1.167 to 2.596 |
| Age 8–9 | 266 (23.2)* | 162 (14.1) | 1.952* | 1.567 to 2.431 | 1.954* | 1.456 to 2.622 | 1.844* | 1.343 to 2.531 |
| Age 10–11 | 134 (21.0)* | 89 (13.9) | 1.789* | 1.325 to 2.415 | 1.867* | 1.270 to 2.744 | 1.813* | 1.203 to 2.730 |
| Age 12–13 | 141 (13.9)* | 86 (8.5) | 1.823* | 1.369 to 2.428 | 1.628* | 1.116 to 2.373 | 1.641* | 1.078 to 2.496 |
| Age 14–15 | 65 (10.0)* | 37 (5.7) | 1.896* | 1.244 to 2.889 | 1.837* | 1.070 to 3.153 | 1.986* | 1.097 to 3.597 |
| Age 16–18 | 73 (11.1)* | 46 (7.0) | 1.696* | 1.150 to 2.502 | 1.546 | 0.922 to 2.593 | 1.256 | 0.705 to 2.238 |
ORs of the HBW group for overweight and obesity were assessed by multivariate logistic regression with the dependent variable (overweight or obesity) and independent variable (birth weight).
*P<0.05.
†Model 1 was unadjusted for any covariates.
‡Adjusted for urban–rural area, single child, delivery, fruit and vegetable intake, sugar-sweetened beverage, moderate and vigorous physical activity, sedentary time, and elevated blood pressure.
§Further adjusted for paternal and maternal education level, hypertension, diabetes and obesity.
AOR, adjusted OR; HBW, high birth weight; NBW, normal birth weight.