Analysis of the effects of BMI before pregnancy and changes in pregnancy BMI on delivery modes and perinatal outcomes
Objective To analyze the effects of body mass index(BMI)before pregnancy and changes in pregnancy BMI on delivery modes and perinatal outcomes,so as to provide a basis for weight management of women preparing for pregnancy and pregnancy.Methods A total of 98 pregnant women who were hospitalized for delivery in Kunming Maternal and Child Health Hospital from August 2022 to August 2023 were selected as the study subjects,and the subjects were divided into wasting group(n=16),normal group(n=54),and overweight or obese group(n=28)according to pre-pregnancy BMI.According to the changes of BMI during pregnancy,the women were divided into insufficient weight gain group(n=19),normal weight gain group(n=27)and excessive weight gain group(n=52),and the differences in delivery modes and perinatal outcomes between the groups were analyzed.Results Among the 98 pregnant women,69 underwent vaginal delivery and 29 underwent cesarean section.There were statistically significant differences in delivery modes among the wasting group,normal group,and overweight or obese groups(x2=11.068,P＜0.05),and there were significant differences in delivery modes among underweight group,normal weight gain group and overweight group(x2=9.126,P＜0.05).There were statistically significant differences in the proportions of pregnancy complications,fetal adverse events and neonatal adverse events among the wasting group,normal group and overweight or obesity group(x2=13.411,21.977,23.885,respectively,P＜0.05),while there was no significant difference in the proportion of postpartum complications(P＞0.05).There were statistically significant differences in pregnancy complications,fetal adverse events,and neonatal adverse events among different groups of BMI changes during pregnancy(x2=11.651,10.825,16.534,11.159,respectively,P＜0.05).Conclusion Overweight or obesity before pregnancy and excessive weight gain during pregnancy may increase the risk of cesarean section and adverse perinatal outcomes.It is recommended that women who are overweight or obese before pregnancy should manage their weight loss during pregnancy,and still need to manage their weight scientifically during pregnancy to avoid excessive or insufficient weight gain during pregnancy.
pregnant womenbody mass indexdelivery modesperinatal outcomes
万方数据
维普
