Abstract：Objective To examine the effects of gestational diabetes mellitus (GDM) on gestational BMI and pregnancy outcomes. Methods A total of 622 pregnant women who delivered in two hospitals were recruited. Outcomes of babies and mothers were recorded through questionnaire survey, including family history, history of maternal weight during pregnancy, blood glucose, blood pressure, and complications during delivery. Women were divided into two groups according to LADPSG diagnostic criteria for GDM. Results There were no differences in age, early pregnant BMI, and gestation length between two groups. The GDM group had higher mean BMI in mid-pregnancy and late pregnancy. There was no difference in Cesarean section rate and mean infant birth weight between two groups. Conclusion GDM in pregnant women has some effect on maternal body weight, but no impact on pregnancy outcomes was observed.
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