Table 4.
Neonatal outcomes associated with occiput posterior stratified by mode of delivery
| Spontaneous vaginal | Operative vaginal | Caesarean | ||||
|---|---|---|---|---|---|---|
| OR (95% CI) | AORa, b (95% CI) | OR (95% CI) | AORa (95% CI) | OR (95% CI) | AORa (95% CI) | |
| Umbilical artery pH < 7.10 | 1.57 (1.01–2.42) | 1.76 (1.11–2.81) | 1.32 (0.81–2.16) | 1.11 (0.63–1.98) | 0.62 (0.35–1.12) | 0.73 (0.38–1.40) |
| Apgar score < 7 at 5 min | * | * | 1.50 (0.67–3.33) | 1.20 (0.47–3.06) | 0.62 (0.34–1.14) | 0.91 (0.48–1.75) |
| Neonatal care | 1.66 (0.88–3.15) | 2.01 (1.06–3.81) | 1.27 (0.57–2.82) | 1.38 (0.59–3.25) | 0.45 (0.28–0.71) | 0.54 (0.32–0.90) |
| Composite morbidityc | 1.50 (0.82–2.76) | 1.87 (1.02–3.45) | 1.28 (0.68–2.44) | 1.26 (0.62–2.56) | 0.47 (0.30–0.72) | 0.56 (0.35–0.90) |
Crude and adjusted odds ratios for posterior versus anterior (reference) position are presented
aAdjusted for maternal age, nulliparity, pregnancy complication, induction of labour, gestational age at birth, use of epidural analgesia, birth weight and year of delivery
bSpontaneous vaginal delivery also adjusted for duration of pushing
cComposite of any of: Apgar score < 7 at 5 min, pH < 7.00, metabolic acidaemia or neonatal care
*No cases among occiput posterior deliveries