Table 1 Age-adjusted characteristics of participants according to term birth weight category at baseline (1991)
| Â | Term birth weight categories (kg) | ||||
|---|---|---|---|---|---|
|  | <2.5 | 2.5–3.15 | 3.16–3.82 | 3.83–4.49 | ≥4.5 |
N (52,114) | 1,763 | 15,346 | 27,253 | 7,064 | 688 |
Percentage, % | 3.4 | 29.4 | 52.3 | 13.6 | 1.3 |
Age, years* | 36.4 ± 4.6 | 35.6 ± 4.6 | 35.6 ± 4.6 | 35.1 ± 4.6 | 35.7 ± 4.5 |
Body mass index, kg/m2 | 23.3 ± 4.2 | 23.4 ± 4.3 | 23.6 ± 4.2 | 24.0 ± 4.4 | 24.6 ± 4.8 |
Total energy intake, kcal/d | 1791 ± 565 | 1779 ± 746 | 1800 ± 539 | 1806 ± 543 | 1796 ± 558 |
DASH score | 23.5 ± 5.1 | 23.7 ± 5.1 | 23.9 ± 5.1 | 24.0 ± 5.1 | 24.1 ± 5.3 |
Alcohol intake, g/d | 2.9 ± 5.4 | 3.2 ± 5.9 | 3.2 ± 5.8 | 3.0 ± 5.9 | 2.9 ± 5.2 |
Current smoking, % | 12.3 | 11.3 | 11.1 | 11.3 | 9.5 |
Moderate/vigorous intensity exercise, h/wk | 2.5 ± 3.8 | 2.5 ± 3.9 | 2.5 ± 3.9 | 2.5 ± 3.8 | 2.8 ± 4.8 |
Family history of hypertension, % | 51.5 | 48.5 | 47.7 | 49.3 | 54.7 |
White, % | 93.5 | 93.2 | 95.5 | 96.0 | 94.3 |
Use of oral contraceptive pills, % | 12.5 | 11.2 | 11.2 | 11.3 | 12.1 |
Use of supplemental folic acid, % | 41.6 | 43.0 | 43.3 | 42.9 | 44.1 |
Supplemental folic acid intake, μg/d | 147 ± 239 | 160 ± 257 | 161 ± 258 | 166 ± 263 | 161 ± 248 |
Nonnarcotic analgesic use at least once per week, % | Â | Â | Â | Â | |
 Aspirin or aspirin-containing products | 10.7 | 10.2 | 9.7 | 9.4 | 11.0 |
 Ibuprofen | 17.9 | 16.9 | 16.4 | 16.3 | 17.7 |
 Acetaminophen | 22.7 | 19.9 | 19.3 | 19.2 | 22.5 |