GROUPE DE ROBSON | Total delivery n = 2154 | Césariennes VEM n = 835 | ||||
A | Frequency | B | Relative contribution of each group to the overall rate of cesarean section | Rate of cesarean section in each group | ||
Number | (A/Total delivery) × 100 | Number | (B/Total cesarean) × 100 | (B/A) × 100 | ||
1 | Nullipara, single pregnancy, cephalic presentation, gestational age ≥37 SA, spontaneous labor | 561 | 26% | 136 | 16.3% | 24.2% |
2 | Nullipara, single pregnancy, cephalic presentation, gestational age ≥37 SA, onset of labor or cesarean section before labor | 91 | 4.2% | 87 | 10.4% | 95.6% |
3 | Multipara, single pregnancy, cephalic presentation, gestational age ≥37 SA, spontaneous labor, without cicatricial uterus | 720 | 33.4% | 133 | 15.9% | 18,5% |
4 | Multipara, single pregnancy, cephalic presentation, gestational age ≥37 SA, onset of labor or caesarean before work, without cicatricial uterus | 101 | 4.7% | 97 | 11,6% | 96% |
5 | Previous cesarean section all multipara with at least a uterine scar, single pregnancy, cephalic presentation, gestational age ≥37 SA | 275 | 12.8% | 180 | 21.6% | 65.5% |
6 | All nullipara, single pregnancy, seat presentation | 33 | 1.5% | 30 | 3.6% | 90.9% |
7 | All multipara, single pregnancy seat presentation, cicatricial uterus included | 73 | 3.4% | 59 | 7,1% | 80.8% |
8 | All multiple pregnancies, cicatricial uterus included | 78 | 3.6% | 40 | 4.8% | 51.3% |
9 | All single pregnancies with transversal presentation, cicatricial uterus included | 8 | 0.4% | 8 | 1% | 100% |
10 | All single pregnancies with cephalic presentation, gestational age <37 SA, cicatricial uterus included | 214 | 9.9% | 65 | 7.8% | 30.4% |
Total | 2154 | 100% | 835 | 100% | 38.8% |