Importance of guidance of body weight gain during pregnancy for the pregnant women with different body mass indexes

Objective:To summarize the conditions of body weight gain during pregnancy of the pregnant women with different body mass indexes who received normal prenatal examination in the hospital,analyze the pregnancy outcomes,point the importance of providing proper guidelines for body weight gain during pregnancy according to different body mass indexes.Methods:A total of 2 557 pregnant women who received prenatal examination and deliveried in the hospital from January 2009 to January 2010 were analyzed,then they were divided into different groups according to body mass index before pregnancy,the body weight gains during pregnancy in different groups were calculated,and the results were compared with weight gain guideline reversed by Institute of Medicine in 2009,the proportion of pregnant women with body weight above weight gain guideline was obtained,the pregnancy outcomes were followed up.Results:The proportion of pregnant women with body weight above weight gain guideline in the four groups were 38.36%,40.77%,65.36%,and 63.64%,respectively.The cesarean section rate,the incidences of gestational diabetes mellitus,hypertensive disorder complicating pregnancy,and postpartum hemorrhage in these pregnant women were significantly higher than those in normal pregnant women(P0.05).Conclusion:Providing proper guidance of body weight gain during pregnancy has important significance,which can reduce the adverse pregnancy outcomes and the occurrence of obesity among the pregnant women and their offspring.