Table 1 Maternal characteristics, neonatal characteristics and obstetric practice factors of spontaneous vaginal delivery, assisted vaginal delivery and caesarean delivery (with and without labour) deliveries at term, in Nova Scotia, 1988–2002
CharacteristicsSpontaneous vaginal delivery(n = 99 679)Assisted vaginal delivery(n = 15 987)Caesarean in labour(n = 16 508)Caesarean without labour(n = 10 755)
Maternal
Maternal age >35 years (%)8908 (8.9)1377 (8.6)1792 (10.9)1696 (15.8)
Nulliparous (%)36 848 (37.0)12 071 (75.5)11 331 (68.6)2344 (21.8)
Smoking (%)28 720 (29.7)3945 (25.4)4239 (26.4)2844 (27.1)
Maternal weight at delivery (kg), mean (SD)79.5 (14.1)79.7 (14.1)84.3 (16.5)83.4 (16.7)
Pre-existing hypertension (%)628 (0.6)151 (0.9)222 (1.3)160 (1.5)
Pre-existing diabetes (%)143 (0.1)54 (0.3)84 (0.5)71 (0.7)
Gestational hypertension (%)7298 (7.3)2018 (12.6)2501 (15.2)839 (7.8)
Gestational diabetes (%)2010 (2.0)366 (2.3)655 (4.0)424 (3.9)
Regional anaesthesia (%)26 351 (26.4)9605 (60.1)12 461 (75.5)8376 (77.9)
Induced labour (%)18 751 (18.8)4100 (25.6)5660 (34.3)0 (0.0)
Neonatal
Gestational age at delivery (weeks), mean (SD)39.7 (1.3)39.8 (1.3)39.8 (1.4)38.9 (1.2)
LGA (%)11 777 (11.8)1857 (11.6)3175 (19.3)1907 (17.8)
SGA (%)9558 (9.6)1523 (9.5)1621 (9.9)952 (8.9)
  • LGA, large for gestational age; SD, standard deviation; SGA, small for gestational age.