Table 2.
A sonographic estimate of fetal weight is associated with cesarean delivery
| Variable | Cesarean delivery (N = 139) | Vaginal delivery (N = 165) | p-Value | Adjusted odds ratioa | 95% confidence interval |
|---|---|---|---|---|---|
| US-EFW | 119 (85.6)b | 112 (67.9) | < 0.001 | 2.23 | 1.16–4.28 |
| Birth weight (kg) | 3.519 ± 0.58 | 3.260 ± 0.46 | < 0.001 | 2.41 | 1.42–4.08 |
| Induction of labor | 93 (66.9) | 105 (63.6) | 0.55 | 0.72 | 0.41–1.24 |
| Type of diabetes | |||||
| A2 | 76 (54.7) | 114 (69.1) | 0.03 | (Ref) | |
| Type 2 | 30 (21.6) | 28 (17.0) | 1.05 | 0.55–2.02 | |
| Type 1 | 33 (23.7) | 23 (13.9) | 1.83 | 0.93–3.62 | |
| Maternal age at delivery (y) | 31.7 ± 5.5 | 31.6 ± 5.2 | 0.87 | 1.04 | 0.99–1.09 |
| Maternal BMI at delivery (kg/m2) | 37.2 ± 8.3 | 33.4 ± 6.3 | < 0.001 | 1.08 | 1.04–1.12 |
Abbreviations: BMI, body mass index; US-EFW, ultrasound-estimated fetal weight.
a
Adjusted for ultrasound-estimated fetal weight, birth weight, induction of labor, type of diabetes, maternal age, maternal BMI.
b
Data presented are mean ± standard deviation for continuous variables, N (%) for categorical variables.