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 outcomes
Adjusted logistic regression model
Underweight ()
Normal ()
Overweight ()
Obese ()
Gestational diabetes
0.766 (0.485-1.212)
Ref
0.990 (0.698-1.406)
2.758 (1.782-4.269)
PPROM
1.944 (1.329-2.845)
Ref
0.841 (0.572-1.236)
0.963 (0.562-1.653)
Anemia
1.201 (0.778-1.855)
Ref
0.974 (0.664-1.428)
0.345 (0.156-0.760)
Postpartum hemorrhage
0.745 (0.350-1.586)
Ref
1.451 (0.879-2.398)
1.221 (0.584-2.555)
Preeclampsia
0.350 (0.046-2.641)
Ref
1.340 (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.