Table 4.
Delivery and newborn outcomes
| n | Mean (SD) | % | Range | |
|---|---|---|---|---|
| Gestational age at delivery (weeks) | 1414 | 40.1 (1.2) | 33.0–42.7 | |
| Delivery < 37 gestational weeks | 25 | 1.8 | ||
| Delivery type | 1410 | |||
| Spontaneous vaginal | 1162 | 82.4 | ||
| Vacuum | 106 | 7.5 | ||
| Elective caesarean | 41 | 2.9 | ||
| Acute caesarean | 101 | 7.2 | ||
| Duration of delivery | ||||
| Duration stage I (min) | 1407 | 480 (350) | 10–2315 | |
| Duration stage II (min) | 1268 | 21 (19) | 1–114 | |
| Total duration (min) | 1407 | 511 (362) | 10–2357 | |
| Oxytocin use | 1411 | |||
| Yes | 811 | 57.5 | ||
| Birth weight (gram) | 1414 | 3597 (449) | 1950–5780 | |
| Birth weight z-score | 1414 | − 0.1 (0.9) | − 2.8 to + 6.4 | |
| Birth length (cm) | 1414 | 50.5 (1.9) | 42.0–58.0 | |
| Birth length z-score | 1414 | 0.0 (1.0) | − 3.9 to + 4.9 | |
| Head circumference (cm) | 1412 | 35.0 (1.4) | 30.5–40.0 | |
| Head circumference z-score | 1412 | 0.0 (1.0) | − 3.0 to + 3.6 | |
| Apgar scores | ||||
| 1 min | 1403 | 8.5 | 1–10 | |
| 5 min | 1401 | 8.9 | 3–10 | |
| Newborn pH | ||||
| Artery | 1398 | 7.3 | 6.8–7.6 | |
| Vein | 203 | 7.3 | 7.0–7.5 |