| Mean ± SD | n (%) |
---|---|---|
Birth weight (g) | 2910 ± 457 |  |
Low birth weight (< 2500g) | Â | |
 Yes |  | 2754 (10.5) |
 No |  | 23596 (89.5) |
 Missing |  | 5289 |
Preterm and alive | ||
 Yes |  | 321 (1.1) |
 No |  | 28351 (98.9) |
 Missing |  | 2967 |
Congenital infection | ||
 Yes |  | 180 (0.6) |
 No |  | 28492 (99.4) |
 Missing |  | 2967 |
Miscarriage | ||
 Yes |  | 567 (2.0) |
 No |  | 28105 (98.0) |
 Missing |  | 2967 |
Stillbirth | ||
 Yes |  | 373 (1.3) |
 No |  | 28299 (98.7) |
 Missing |  | 2967 |
Poor outcomea | ||
 Yes |  | 4408 (15.6) |
 No |  | 23791 (84.4) |
 Missing |  | 3440 |