Table 4 Rates of CS by Robson classification and model of care, and adjusted OR of CS
Public | Private | Private vs public | ||||||||
|---|---|---|---|---|---|---|---|---|---|---|
Robson groups | Description | N women | Proportion of all women (%) | N Caesarean Sections (CS) | CS rate (x100) | N women | Proportion of all women (%) | N Caesarean Sections (CS) | CS rate (x100) | Adjusted OR§ (95% CI) |
1 | Nulliparous, single cephalic, > = 37 weeks, in spontaneous labour | 462 | 19.5 | 40 | 8.7 | 831 | 27.4 | 68 | 8.2 | 0.60 (0.35 - 1.02) |
2a | Nulliparous, single cephalic, > = 37 weeks, induced labour | 331 | 14.0 | 81 | 24.5 | 428 | 14.1 | 115 | 26.9 | 1.64 (1.14 - 2.34) |
2b | Nulliparous, single cephalic, > = 37 weeks, CS before labour | 53 | 2.2 | 53 | 100.0 | 141 | 4.6 | 141 | 100.0 | |
3 | Multiparous (excluding prev. CS), single cephalic, > = 37 weeks, in spontaneous labor | 704 | 29.8 | 15 | 2.1 | 695 | 22.9 | 9 | 1.3 | 0.42 (0.13 - 1.30) |
4a | Multiparous (excluding prev. CS), single cephalic, > = 37 weeks, induced labour | 256 | 10.8 | 18 | 7.0 | 186 | 6.1 | 10 | 5.4 | 1.66 (0.94 – 2.91) |
4b | Multiparous (excluding prev. CS), single cephalic, > = 37 weeks, CS before labour | 29 | 1.2 | 29 | 100.0 | 73 | 2.4 | 73 | 100.0 | |
5 | Previous CS, single cephalic, > = 37 weeks | 268 | 11.3 | 232 | 86.6 | 278 | 9.2 | 253 | 91.0 | 1.56 (0.78 - 3.13) |
6 | All nulliparous breeches | 47 | 2.0 | 45 | 95.7 | 86 | 2.8 | 85 | 98.8 | - |
7 | All nulliparous breeches (including prev. CS) | 37 | 1.6 | 37 | 100.0 | 42 | 1.4 | 42 | 100.0 | - |
8 | All multiple pregnancies (including prev. CS) | 25 | 1.1 | 21 | 84.0 | 67 | 2.2 | 60 | 89.6 | - |
9 | All abnormal lies (including prev. CS) | 28 | 1.2 | 9 | 32.1 | 25 | 0.8 | 13 | 52.0 | - |
10 | All single cephalic, <=36 weeks (including prev. CS) | 124 | 5.2 | 61 | 49.2 | 185 | 6.1 | 96 | 51.9 | 0.93 (0.51 - 1.71) |
Total | 2,364 | 641 | 100.0 | 27.1 | 3,037 | 965 | 100.0 | 31.8 | ||