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Table 3 Logistic regression analysis to assess the association between occiput posterior position and neonatal outcomes, all births

From: Neonatal outcomes of deliveries in occiput posterior position when delayed pushing is practiced: a cohort study

Outcome

All births

 

n

Rate

OR (95% CI)

AORa (95% CI)

Umbilical artery pH < 7.10

 Occiput posterior

56

5.5

1.48 (1.12–1.96)

1.28 (0.93–1.74)

 Occiput anterior

733

3.8

reference

reference

Metabolic acidaemia

 Occiput posterior

2

0.2

1.15 (0.28–4.80)

0.64 (0.08–5.04)

 Occiput anterior

33

0.2

reference

reference

Apgar score < 7 at 5 min

 Occiput posterior

20

1.5

2.18 (1.37–3.47)

1.84 (1.11–3.05)

 Occiput anterior

188

0.7

reference

reference

Neonatal care

 Occiput posterior

38

2.9

1.87 (1.33–2.62)

1.68 (1.17–2.42)

 Occiput anterior

420

1.6

reference

reference

Composite morbidityb

 Occiput posterior

47

3.6

1.87 (1.38–2.54)

1.66 (1.19–2.31)

 Occiput anterior

520

2.0

reference

reference

  1. Occiput posterior (n 1292) and occiput anterior (n 26,356). Calculations were only made on deliveries with complete registration of data
  2. Unadsjusted (OR) and adjusted odds ratios (AOR) with 95% confidence intervals (CI)
  3. aAdjusted for: for maternal age, nulliparity, pregnancy complication, induction of labour, gestational age at birth, use of epidural analgesia, birth weight and year of delivery
  4. bComposite of any of: Apgar score < 7 at 5 min, pH < 7.00, metabolic acidaemia or neonatal care