Does a lean prepregnancy body mass index influence outcome in pregnancies complicated by mild preeclampsia remote from term?
A matched cohort design was used. A total of 99 pregnant women with mild preeclampsia and a nonobese prepregnancy BMI (22-28 kg/m2) were matched 1 : 1 for gestational age at diagnosis, race, and parity to 99 women with mild preeclampsia, but a lean prepregnancy BMI (< or = 20 kg/m2). All patients were enrolled in an outpatient management program between 24 and 36 weeks' gestation for a minimum of 2 days, had singleton pregnancies, and exhibited proteinuria of > or = 1+ at the start of the program. Outpatient monitoring included automated blood pressure measurements and daily assessment of weight, proteinuria, and fetal movement.