Item | OR (95% CI) | p Value |
PPROM | 0.74 (0.55 to 0.99) | 0.04 |
Abruption | 0.43 (0.27 to 0.68) | <0.001 |
Any antenatal steroid | 2.09 (1.51 to 2.89) | <0.001 |
GA per week | 1.96 (1.77 to 2.22) | <0.001 |
Birthweight for GA per 100 g | 1.44 (1.26 to 1.64) | <0.001 |
Cephalic presentation | 2.36 (1.80 to 3.09) | <0.001 |
Vaginal delivery | 0.58 (0.39 to 0.86) | 0.01 |
Presence of any paediatric staff | 2.64 (1.92 to 3.63) | <0.001 |
GA, gestational age; HR >100/5 min, heart rate >100 bpm 5 minutes after birth; OR, odds ratio; PPROM, prolonged pre-labour rupture of membranes.