Table 6.
Odds Ratios for Caesarian Section, and Gestational Hypertension in Relation to a Prepregnancy Body Mass Index (BMI) of 25–29, Controlling for Age, Race, Weight Gain, Cigarette Smoking, and Education in Primiparas With Singleton Newborns, United States, 2013.
| BMI | C-Section | Hypertension | ||
|---|---|---|---|---|
| OR | 95% CI | OR | 95% CI | |
| <15 | 0.70 | [0.58, 0.85] | 0.30 | [0.17, 0.51] |
| 15–19 | 0.58 | [0.57, 0.59] | 0.45 | [0.43, 0.47] |
| 20–24 | 0.71 | [0.70, 0.72] | 0.61 | [0.60, 0.62] |
| 25–29 | 1.00 | 1.00 | ||
Note. n = 1,077,439. OR = odds ratio; CI = confidence interval.