Table 3.

Selected demographics, maternal obstetric history and maternal and neonatal outcomes among Australian-born and non-Australian-born women, N = 3092

	Australian-born n = 1341	Non-Australian-born n = 1751	p
Maternal age*	28.0 (5.88)	30.0 (4.99)	<0.0001
Teenage pregnancy	7.8 %	1.5 %	<0.0001
Pregnancy ≥35 years	14.7 %	19.0 %	0.002
Nulliparous	28.6 %	27.5 %	0.52
Smoking	19.7 %	3.0 %	<0.0001
BMI ≥ 30	32.0 %	21.4 %	<0.0001
Gestational Diabetes	6.8 %	13.7 %	<0.0001
Instrumental delivery	9.6 %	12.0 %	0.04
Caesarean section	27.0 %	30.0 %	0.06
Epidural use	26.2 %	20.2 %	<0.0001
Episiotomy	18.0 %	15.5 %	0.06

*Mean, SD and t-test, Median, IQ range, Mann–Whitney U