Table III.
OR (95% CI)a | |
---|---|
History of Cesarean | |
No | Reference |
Yes | 0.90 (0.64–1.26) |
Infertility prior to first delivery | |
No | Reference |
Yes | 5.16 (3.60–7.39) |
Maternal age at observed delivery | |
<30 | Reference |
30–35 | 1.17 (0.78–1.76) |
>35 | 1.09 (0.69–1.73) |
Parity at observed delivery | |
No previous deliveries | Reference |
One previous delivery | 0.18 (0.12–0.28) |
Two or more previous deliveries | 0.06 (0.01–0.24) |
BMI 30 kg/m2 or higher | |
No | Reference |
Yes | 1.24 (0.85–1.80) |
aOR (95% CI) based on generalized estimating equations with robust variance estimates.