Research Article

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

Table 2

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

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

Gestational diabetes0.679 (0.432-1.067)Ref1.003 (0.715-1.407)2.838 (1.881-4.282)
PPROM1.757 (1.210-2.549)Ref0.807 (0.559-1.167)0.857 (0.510-1.440)
Anemia1.225 (0.800-1.875)Ref0.982 (0.674-1.430)0.347 (0.159-0.760)
Postpartum hemorrhage0.784 (0.384-1.597)Ref1.548 (0.969-2.474)1.329 (0.665-2.654)
Preeclampsia0.354 (0.047-2.666)Ref1.402 (0.554-3.549)4.472 (1.908-10.483)

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