Table II.
Type of delivery, birth weight, and demographic characteristics at birth in the whole cohort, and among the children with and without short sleep duration
| Characteristics | N (%) | Children without short sleep duration | Children with short sleep duration |
|---|---|---|---|
| Type of delivery | |||
| Vaginal | 2309 (54.6) | 1788 (54.6) | 196 (53.4) |
| Cesarean | 1922 (45.4) | 1490 (45.4) | 171 (46.6) |
| Sex | |||
| Male | 2196 (51.9) | 1687 (51.5) | 208 (56.7) |
| Female | 2035 (48.1) | 1591 (48.5) | 159 (43.3) |
| Birth weight (g) | |||
| ≥4000 | 201 (4.7) | 154 (4.7) | 21 (5.7) |
| 2501-3999 | 3599 (85.1) | 2825 (86.2) | 312 (85.0) |
| 1500-2500 | 369 (8.7) | 274 (8.4) | 31 (8.5) |
| ≤1500 | 62 (1.5) | 25 (0.7) | 3 (0.8) |
| Gestational age (wk) | |||
| <37 | 613 (14.5) | 448 (13.7) | 53 (14.4) |
| ≥37 | 3618 (85.5) | 2830 (86.3) | 314 (85.6) |