Table 1 Classification of episiotomy practices: Burgundy perinatal network data, vaginal deliveries, 2011–2012
Classification of episiotomy practices | Number of episiotomies / Number of women | Episiotomy rate of each group (%) | Relative size of each group (%)a | Contribution of each group to episiotomy rate (%) b |
|---|---|---|---|---|
1 – Nulliparous women with a single cephalic pregnancy at ≥37 weeks gestation, non-instrumental delivery | 1942/ 7987 | 24.3 | 28.7 | 39.3 |
2 – Nulliparous women with a single cephalic pregnancy at ≥37 weeks gestation, instrumental delivery | 1381/ 2972 | 46.5 | 10.7 | 28.0 |
 2a – Forceps/ spatula delivery | 801/ 1223 | 65.5 | 4.4 | 16.2 |
 2b – Vacuum delivery | 580/ 1749 | 33.2 | 6.3 | 11.8 |
3 – Multiparous women with a single cephalic pregnancy at ≥37 weeks gestation, non- instrumental delivery | 1066/ 14,237 | 7.5 | 51.2 | 21.6 |
4 – Multiparous women with a single cephalic pregnancy at ≥37 weeks gestation, instrumental delivery | 250/ 771 | 32.4 | 2.8 | 5.1 |
 4a – Forceps/ spatula delivery | 140/ 247 | 56.7 | 0.9 | 2.8 |
 4b – Vacuum delivery | 110/ 524 | 21.0 | 1.9 | 2.2 |
5 – All women with a single cephalic pregnancy at < 37 weeks gestation | 164/ 1172 | 14.0 | 4.2 | 3.3 |
6 – All women with a single breech pregnancy | 72/ 374 | 19.3 | 1.3 | 1.5 |
7 – All women with multiple pregnancy | 61/ 270 | 22.6 | 1.0 | 1.2 |
Total | 4936/ 27,783 | 17.8 | 100 | 100 |