Spontaneous labour | Induced labour | |||||
---|---|---|---|---|---|---|
Primiparas (n=43 403) | n | % | n | % | RR | 95% CI |
Vaginal delivery (both) | 22 428 | 70.7 | 6 382 | 54.7 | 0.77 | 0.76 to 0.79 |
Instrumental delivery | 5 819 | 18.3 | 2 206 | 18.9 | 1.03 | 0.99 to 1.08 |
Urgent CS | 6 179 | 10.0 | 2 934 | 25.1 | 2.51 | 2.40 to 2.62 |
Emergency CS | 300 | 0.9 | 155 | 1.3 | 1.40 | 1.16 to 1.70 |
Multiparas (n=51 648) | n | % | n | % | RR | 95% CI |
Vaginal delivery (both) | 37 239 | 91.0 | 8 971 | 83.7 | 0.92 | 0.91 to 0.93 |
Instrumental delivery | 1 767 | 4.3 | 676 | 6.3 | 1.46 | 1.34 to 1.59 |
Urgent CS | 1 774 | 4.3 | 967 | 9.0 | 2.08 | 1.93 to 2.25 |
Emergency CS | 152 | 0.4 | 102 | 1.0 | 2.56 | 2.00 to 3.29 |