From: Timing of delivery in a high-risk obstetric population: a clinical prediction model
Risk factor | OR [95% CI] | Adjusted ORa [95% CI] |
---|---|---|
Maternal age (yr) | ||
< 40 | Reference | Reference |
≥ 40 | 0.55 [0.39–0.78] | 0.66 [0.45–0.97] |
Parity | ||
Nulliparous | Reference | Reference |
Parity ≥1 | 0.68 [0.59–0.78] | 0.58 [0.50–0.68] |
Smoking during pregnancyb | 1.35 [1.13–1.62] | 1.37 [1.12–1.67] |
Gestational age (GA) on admissionc | 1.08 [1.03–1.13] | c |
Maternal conditions | ||
Preterm labour | 2.38 [2.05–2.76] | 7.37 [5.85–9.29] |
PPROM | 1.52 [1.30–1.76] | 5.59 [4.42–7.07] |
Prolapsed membranes | 1.75 [1.41–2.18] | 6.36 [4.77–8.48] |
Associated antepartum haemorrhage | 2.06 [1.63–2.60] | 1.96 [1.53–2.52] |