Abstract:
ObjectiveTo understand the trend of cesarean section (CS) in pregnant women in Zhoushan of Zhejiang province from 2002 to 2018, and analyze the potential influence factors.
MethodsThe prenatal examination data and delivery information of pregnant women in Zhoushan during this period were collected by using local electronic medical record system. Multivariate logistic regression models were used to identify the influence factors for CS.
ResultsThe study included 43 034 pregnant women from 2002 to 2018. The overall CS rate was 50.61%, and the rate began to decrease from 2013 and decreased to 40% in 2016. Older age at pregnancy (OR=1.115, 95% CI: 1.106–1.123), higher pre-pregnancy BMI (OR=1.080, 95% CI: 1.070–1.090), more than 2 times (OR=1.199, 95% CI: 1.145–1.256), high-risk pregnancy (OR=1.407, 95% CI: 1.317–1.504) and high fetal birth weight (OR=1.730, 95% CI: 1.641–1.824), non-head delivery (OR=7.620, 95% CI: 7.037–8.251) were the influence factors for CS. When stratified by year, higher educational level was the influence factor for CS before 2014.
ConclusionThe average CS rate was relatively high in Zhoushan. Maternal age, pre-pregnancy BMI, gravidity, risk degree of pregnancy, fetal birth weight and position of the fetus were influence factors for CS.