Description of birth parameters by sex
| Boys | Girls | No | Total | |
|---|---|---|---|---|
| *Low birth weight defined as birth weight less than 2.5 kg. | ||||
| †Prematurity defined as gestational age less than 37 weeks. | ||||
| Birth weight (kg) | ||||
| Mean (SD) (%) | 3.2 (0.4) | 3.1 (0.4) | 1413 | 3.2 (0.4) |
| Median (range) | 3.2 (2.0–4.8) | 3.1 (2.0–4.9) | 3.2 (2.0–4.9) | |
| Low birth weight* (n) | 38 (5.2) | 42 (6.1) | 80 (5.7) | |
| Gestational age (weeks) | ||||
| Mean (SD) | 38.6 (1.5) | 38.6 (1.5) | 1248 | 38.6 (1.5) |
| Median (range) | 39.0 (32.0–46.0) | 39.0 (28.0–42.0) | 39.0 (34.0–46.0) | |
| Premature (n) (%) | 50 (7.7) | 35 (5.9) | 85 (6.8) | |
| Head circumference (cm) | ||||
| Mean (SD) | 33.9 (1.5) | 33.5 (1.6) | 1249 | 33.7 (1.6) |
| Median (range) | 34.0 (30.0–45.0) | 33.0 (30.0–49.0) | 34.0 (30.0–49.0) | |
| Length at birth (cm) | ||||
| Mean (SD) | 49.6 (2.4) | 48.9 (2.3) | 1279 | 49.3 (2.4) |
| Median (range) | 50.0 (44.0–70.0) | 49.0 (44.0–59.0) | 49.0 (44.0–70.0) | |