| Mean birth weight | SD |  | SD |  | SE |  |
---|---|---|---|---|---|---|---|
Age-category | Normal weight | Â | Overweight | Â | Difference | Â | p-value (t-test) |
0–15 years | 3286 g | 554.48 | 3507 g | 527.27 | +221 g | 91.70 | <0.001 |
10–15 years | 3310 g | 555.61 | 3557 g | 305.94 | +247 g | 234.69 | 0.30 |
6–10 years | 3282 g | 571.43 | 3365 g | 656.48 | +83 g | 161.19 | 0.61 |
3–6 years | 3200 g | 553.50 | 3615 g | 396.67 | +415 g | 130.16 | 0.002 |
<3Â years | 3385Â g | 532.75 | 3502Â g | 554.61 | +117Â g | 91.69 | 0.20 |