Infant characteristics
| Kamlin n = 175 | Dawson n = 264 | Vento n = 29 | Total n = 468 | |
|---|---|---|---|---|
| Gestational age (weeks) * | 37.5 (30–42) | 39 (27–42) | 29 (25–30) | 38 (25–42) |
| Preterm < 37 | 31% (54) | 30% (77) | 100% (29) | 34% (160) |
| Term ≥ 37 | 69% (121) | 70% (187) | 0 | 66% (308) |
| Birth weight (g)† | 2953 (867) | 3092 (810) | 1232 (908) | 2970 (918) |
| Labour commenced | 78% (137) | 72% (190) | 100% (29) | 76% (356) |
| Narcotic in labour | 9% (16) | 17% (45) | 0 | 13% (61) |
| General anaesthetic | 5% (9) | 3% (8) | 0 | 7% (17) |
| Vaginal birth | 39% (68) | 60% (158) | 70% (20) | 52% (246) |
| Apgar 1 min‡ | 8 (7–9) | 8 (8–9) | 6 (5–7) | 8 (8–9) |
| Apgar 5 min‡ | 9 (9–9) | 9 (9–9) | 7 (6–8) | 9 (9–9) |
| Time from birth to first data (s) † | 74 (22) | 71 (32) | 96 (18) | 74 (28) |