Correlation of gestational weight gain and adverse pregnancy outcomes

Objective To further understand the correlation of gestational weight and adverse pregnancy outcomes,and to point the importance of providing proper guidelines for gestational weight gain based on different BMI.Methods A total of 2557 pregnant women who delivered a singleton infant from Jan.2009 to Jan 2010 were enrolled in this study.The women were divided into four groups according to the different body mass index(BMI).We calculated the gestational weight gain in different groups and compared with the 2009 Institute of Medicine(IOM)Guidelines,and then got the ratio of excessive weight gain.Obstetric and neonatal outcomes were also evaluated.Results The ratio of excessive weight gain in the four groups was 38.36%,40.77%,65.36%,and 63.64%,respectively.The risks for cesarean delivery,getational diabetes(GDM),pregnancy-induced hypertension(PIH),were higher for those who had excessive weight gain(P0.05).Conclusion Providing proper recommendations for gestational weight gain has a significant value during pregnancy,which can reduce the poor pregnancy outcome and the occurrence rate of obesity of women and their offspring.