Relationship between preconception BMI and weight gain during pregnancy and risk of emergency cesarean section
Objective To investigate the relationship between pre-pregnancy body mass index(BMI)and pregnancy weight gain and the risk of emergency cesarean section during labor.Methods Eighty primary monoparous women hospitalized at Ankang Maternal and Child Health Hospital from December 2020 to December 2023 were selected as the study objects.Their pregnancy period was(38.95±1.45)weeks.They were(33.28±1.34)years old.Their pre-pregnancy body weight was(57.22±10.17)kg.These women were divided into a vaginal delivery group(47 cases)and an emergency cesarean section group(33 cases)according to their delivery methods.The ages,pre-pregnancy BMI,body weights,weight gain,fasting insulin levels,fasting blood glucose levels,total cholesterol levels,glycated hemoglobin levels,pre-pregnancy weights,high-density lipoprotein levels,low-density lipoprotein levels,triglyceride levels,and educational levels were compared between the groups.Binary logistic regression was employed to analyze the risk factors of emergency cesarean section.Spearman's correlation analysis was conducted to evaluate the relationship of pregnancy BMI and gestational weight gain with the risk of emergency cesarean section during labor.t andx2tests were applied.Results The vaginal delivery group was(31.28±1.22)years old,and the emergency cesarean section group(33.78±1.44)(P<0.05).The pre-pregnancy BMI in the vaginal delivery group was(22.21±2.48)kg/m2,and that in the emergency cesarean section group(23.39±2.33)kg/m2;the proportion of high BMI in the emergency cesarean section group was higher than that in the vaginal delivery group(P<0.05).The gestational weight gain in the vaginal delivery group was(15.11±5.18)kg,and that in the emergency cesarean section group(26.59±6.33)kg(P<0.05).The logistic regression analysis showed that older age,lower education level,higher pre-pregnancy BMI,and greater body weight increase during pregnancy were the risk factors of emergency cesarean section.The correlation analysis indicated positive correlation between BMI and emergency cesarean section(r=0.236,P<0.05),and between body weight gain and emergency cesarean section(r=0.710,P<0.05).Conclusions Preconception BMI and weight during pregnancy were associated with emergency cesarean section.Overweight and obesity before pregnancy are risk factors for emergency cesarean section during pregnancy.Adequate weight management and health education may aid in reducing the risk of emergency cesarean section.