Table 1

Maternal demographics—term category 1 CS, and term non-category 1 CS

Term category 1 CS (n=1179)Other term emergency CS (exclusion category 1 CS) (n=3527)p Value
Age*30 (26–34)30 (26–34)0.33
BMI*23.4 (20.6–27.2)23.7 (20.9–28)0.007
Ethnicity
 Caucasian621 (52.7)1847 (52.4)
 ATSI38 (3.2)92 (2.6)0.30
 Asian287 (24.3)842 (23.9)0.80
 Other/not listed233 (19.8)746 (21.2)0.27
Born in Australia582 (49.4)1792 (50.8)
Born outside of Australia597 (50.6)1735 (49.2)0.4
Medical history
Hypertension
 Chronic hypertension11 (0.9)45 (1.3)0.44
 Gestational hypertension14 (1.2)80 (2.3)0.02
 Preeclampsia14 (1.2)46 (1.3)0.65
 No hypertension1140 (96.7)3356 (95.2)
Diabetes mellitus
 No known diabetes1145 (97.1)3411 (96.7)
 Gestational diabetes6 (0.5)13 (0.4)0.59
 Type 1 diabetes mellitus4 (0.3)10 (0.3)0.76
 Type 2 diabetes mellitus2 (0.2)10 (0.3)0.75
 Diabetes mellitus—indeterminate type22 (1.9)82 (2.3)0.36
Thyroid disease5 (0.4)20 (0.6)0.82
CS indication
 Non-reassuring fetal status777 (65.9)671 (19)<0.0001
 Failure to progress119 (10.1)1641 (46.5)<0.0001
 Malpresentation68 (5.8)437 (12.4)0.11
 Failed instrumental97 (8.2)56 (1.6)0.09
 APH/placenta praevia40 (3.4)31 (0.9)0.49
 Maternal disease16 (1.4)70 (2)0.87
 Cord prolapse/presentation25 (2.1)7 (0.2)0.73
 Repeat CS14 (1.2)424 (12)0.21
 Other23 (2)190 (5.4)0.48
PPH (Number (%))22 (1.9)48 (1.4)0.213
  • Data presented as N (percentage) unless otherwise specified.

  • *Data presented as median (IQR).

  • ATSI, Aborigional and Torres Strait Islanders; APH, antepartum haemorrhage; BMI, body mass index; CS, caesarean section; PPH, postpartum haemorrhage.