Table 2. Percent of women delivered by cesarean, by BMI category, stratified by parity and prior cesarean delivery status.
| Total | Nulliparas | Multiparas and Prior Cesarean | Multiparas WithoutPrior Cesareana | ||||||
|---|---|---|---|---|---|---|---|---|---|
| Total deliveries | % Cesarean | Total deliveries | % Cesarean | Total deliveries | % Cesarean | Total deliveries | % Cesarean | ||
| Total | 124,389 | 14.0 | 57,230 | 21.8 | 5,288 | 37.4 | 61,871 | 4.8 | |
| BMI Categoryb | <25.0 | 18,230 | 7.3 | 9,113 | 11.1 | 523 | 24.9 | 8,594 | 2.2 |
| 25.0-29.9 | 49,584 | 11.3 | 23,553 | 17.7 | 1,891 | 32.6 | 24,140 | 3.3 | |
| 30.0-34.9 | 33,241 | 15.5 | 14,674 | 25.1 | 1,503 | 38.8 | 17,064 | 5.3 | |
| 35.0-39.9 | 14,437 | 20.4 | 6,045 | 33.0 | 831 | 43.7 | 7,561 | 7.7 | |
| ≥40.0 | 8,897 | 27.3 | 3,845 | 42.8 | 540 | 52.8 | 4,512 | 11.0 | |
a
Includes cases with unknown prior Cesarean status.
b
P< 0.0001 based on Cochran-Armitage Trend Test, overall and within parity and prior Cesarean groups.
BMI body mass index