Research Article

The Association of Prepregnancy Body Mass Index with Pregnancy Outcomes in Chinese Women

Table 3

The association between prepregnancy BMI and pregnancy outcomes, adjusted logistic regression model.

Pregnancy outcomesAdjusted logistic regression model
Underweight ()Normal ()Overweight ()Obese ()

Gestational diabetes0.766 (0.485-1.212)Ref0.990 (0.698-1.406)2.758 (1.782-4.269)
PPROM1.944 (1.329-2.845)Ref0.841 (0.572-1.236)0.963 (0.562-1.653)
Anemia1.201 (0.778-1.855)Ref0.974 (0.664-1.428)0.345 (0.156-0.760)
Postpartum hemorrhage0.745 (0.350-1.586)Ref1.451 (0.879-2.398)1.221 (0.584-2.555)
Preeclampsia0.350 (0.046-2.641)Ref1.340 (0.523-3.436)3.512 (1.408-8.762)

Note: prepregnancy BMI groups were defined , normal 18.5-23.9 kg/m2, overweight 24-27.9 kg/m2, and . , , and . All analyses were adjusted for age and conception method. Abbreviations: BMI: body mass index; PPROM: preterm premature rupture of membranes.