Group N Size of the group CS rate within the group Contribution to total CS rate
Total 3605/22595 100% 15.9%
1: Para 0, singleton, cephalic, >37 weeks, spontaneous 471/5961 28.4% 7.9% 2.2%
2a: Para 0, singleton, cephalic, >37 weeks, induced 498/2153 10.3% 23.1% 2.4%
2b: Para 0, singleton, cephalic, >37 weeks, CS before labour 157/157 0.7% 100% 0.8%
3: Para 1+, no previous CS, singleton, cephalic, >37 weeks, spontaneous 102/7620 36.4% 1.3% 0.5%
4a: Para 1+, no previous CS, singleton, cephalic, >37 weeks, induced 93/2009 9.6% 4.6% 0.4%
4b: Para 1+, singleton, cephalic, >37 weeks, CS before labour 202/202 0.9% 100% 1.0%
5a: Para 1+, previous CS, singleton, cephalic, >37 weeks, spontaneous 179/926 4.4% 19.3% 0.9%
5b: Para 1+, previous CS, singleton, cephalic, >37 weeks, induced 155/465 2.4% 33.3% 0.7%
5c: Para 1+, previous CS, singleton, cephalic, >37 weeks, CS before labour 600/600 2.6% 100% 2.8%
6: Para 0, singleton, breech 348/468 2.1% 74.4% 1.7%
7: Para 1+, singleton breech 197/342 1.5% 57.6% 0.9%
8: All women with multiple pregnancies 203/480 2.1% 42.3% 0.9%
9: All women with tranverse lie 48/48 0.2% 100% 0.2%
10: Singleton, cephalic, <37 weeks 352/1164 5.2% 30.2% 1.5%