Impact of birth weight on the risk of injury related infant death
| Homicide | Unintentional injury | ||||||
|---|---|---|---|---|---|---|---|
| Risk factor | No of births | No of deaths | Unadjusted OR (95% CI) | Adjusted OR (95% CI)* | No of deaths | Unadjusted OR (95% CI) | Adjusted OR (95% CI)* |
| CI = confidence interval; OR = odds ratio. | |||||||
| *Adjusted odds ratios obtained from logistic regression models for homicide/unintentional injury including race, birth weight, alcohol intake, cigarette smoking, prenatal care, marital status, maternal age, maternal education, paternal education, birth order, and interpregnancy interval. | |||||||
| Total | 10 671 666 | 821 | 2397 | ||||
| Birth weight (g) | |||||||
| 2500–4000 | 8 921 013 | 628 | 1.0 | 1.0 | 1901 | 1.0 | 1.0 |
| 500–1499 | 102 047 | 27 | 3.7 (2.5 to 5.5) | 2.1 (1.4 to 3.1) | 89 | 4.1 (3.3 to 5.0) | 2.9 (2.4 to 3.7) |
| 1500–2499 | 521 020 | 96 | 2.6 (2.1 to 3.2) | 1.6 (1.3 to 2.0) | 245 | 2.2 (1.9 to 2.5) | 1.6 (1.4 to 1.8) |
| >4000 | 1 207 794 | 46 | 0.5 (0.4 to 0.7) | 0.8 (0.6 to 1.1) | 148 | 0.6 (0.5 to 0.7) | 0.7 (0.6 to 0.8) |
| Missing | 11 592 | 24 | 29.1 (19.4 to 43.9) | 17.7 (11.5 to 27.2) | 14 | 5.6 (3.3 to 9.5) | 4.6 (2.7 to 7.9) |