Table 4

Mode of delivery according to type of obstetric care and parity

Nulliparous
Private patients
n=1931 (%)
Public patients
n=10 439 (%)
Crude OR (95% CI)
Adjusted OR † (95% CI)
Parous
Private patients
n=3548 (%)
Public patients
n=14 135 (%)
Crude OR (95% CI)
Adjusted OR † (95% CI)
Spontaneous vaginal delivery493 (25.5)4647 (44.5)0.43 (0.38 to 0.48)*
0.68 (0.60 to 0.78)*
1995 (56.2)10 344(73.2)0.47 (0.44 to 0.51)*
0.50 (0.45 to 0.55)*
Operative vaginal delivery756 (39.2)3225 (30.9)1.44 (1.30 to 1.59)*
1.25 (1.11 to 1.41)*
348 (9.8)823 (5.8)1.76 (1.54 to 2.01)*
1.56 (1.32 to 1.83)*
Vacuum delivery395 (20.5)1669 (16.0)1.35 (1.20 to 1.53)*
1.27 (1.10 to 1.48)*
252 (7.1)532 (3.8)1.96 (1.68 to 2.28)*
1.64 (1.35 to 2.00)*
Forceps delivery361 (18.7)1556 (14.9)1.31 (1.16 to 1.49)*
1.11 (0.95 to 1.29)
96 (2.7)291 (2.1)1.32 (1.05 to 1.67)*
1.32 (0.99 to 1.76)
Caesarean section (all)682 (35.3)2567 (24.6)1.67 (1.51 to 1.86)*
1.21 (1.07 to 1.37)*
1205 (34.0)2968 (21.0)1.94 (1.79 to 2.10)*
1.80 (1.63 to 1.98)*
Scheduled caesarean section229 (11.9)475 (4.6)2.82 (2.39 to 3.33)*
1.82 (1.49 to 2.24)*
921 (26.0)1719 (12.2)2.53 (2.31 to 2.77)*
2.08 (1.86 to 2.32)*
Emergency caesarean section453 (23.5)2092 (20.0)1.22 (1.09 to 1.37)*
0.98 (0.86 to 1.08)
284 (8.0)1249 (8.8)0.90 (0.79 to 1.03)
1.04 (0.88 to 1.21)
Emergency caesarean section
Spontaneous onset labour
119 (6.2)674 (6.5)0.95 (0.78 to 1.16)
0.86 (0.68 to 1.08)
114 (3.2)558 (3.9)0.81 (0.66 to 0.99)*
0.92 (0.72 to 1.17)
Emergency caesarean section
Induction of labour
218 (11.3)1075 (10.3)1.11 (0.95 to 1.29)
0.86 (0.72 to 1.03)
53 (1.5)239 (1.7)0.88 (0.65 to 1.19)
0.99 (0.69 to 1.41)
Emergency caesarean section
No labour
116 (6.0)343 (3.3)1.88 (1.52 to 2.34)*
1.63 (1.25 to 2.13)*
119 (3.4)456 (3.2)1.04 (0.85 to 1.28)
1.21 (0.95 to 1.55)
  • * p<0.05.

  • †Adjusted for maternal age, marital status, SE group, nationality, parity, smoker, medical disorders, psychiatric disorders, body mass index, assisted conception, previous perinatal death, fetal conditions, antenatal complications.