Study on the relationship between body weight gain during pregnancy and pregnancy outcome in Shenyang

Objective:To investigate the status of body weight gain during pregnancy of pregnant women in Shenyang,explore the relationship between body weight gain during pregnancy and pregnancy outcome.Methods:Simple random sampling method was used to select 3 203 pregnant women from 10 districts and counties(cities) who had pregnant woman manual in maternal and child health care institutes from September to October in 2010,a self-made investigation questionnaire was used to measure the indexes of pregnant women during gestational period for 4-7 times;the pregnancy outcomes were followed up,univariate analysis was adopted for statistical analysis.Results:The larger body mass index(BMI) was,the higher the body weight of neonates was;there was a positive linear correlation between body weight gain during pregnancy and body weight of neonates.Conclusion:If the body weight gain during pregnancy is enough,the pregnant women with low BMI before pregnancy can give birth to neonates with normal body weight;while the pregnant women with high BMI before pregnancy must reduce the body weight gain during pregnancy,then they will give birth to neonates with normal body weight.