Factors influencing late preterm birth and effects of delivery methods on neonatal prognosis

Abstract

Objective To investigate the factors influencing late preterm birth and the effects of delivery methods on neonatal prognosis. Methods A total of 1 180 women who gave birth in our hospital from March, 2015 to July, 2018 were divided into an observation group (n=260), who gave birth when they were 34-36 weeks pregnant, and a control group (n=920), who gave birth when they were 37-42 weeks pregnant, according to the gestational weeks of delivery. Chi-square test and non-conditional multiple logistic regression analysis were used to analyze the influencing factors of late preterm birth, and the effects of different delivery methods on neonatal prognosis were compared. Results Chi-square test and unconditional logistic regression analysis confirmed that placenta previa, hypertension, multiple births, placental abruption, premature rupture of membranes, and amniotic fluid abnormalities might be risk factors for advanced preterm birth (all OR>1, all P<0.05). The incidence of prognosis complications (except infection) of the cesarean section in the control group and the observation group was significantly higher than that of the vaginal delivery, with a statistical difference (P<0.05). Conclusion There are many risk factors for advanced preterm labor. If possible, vaginal delivery should be the first choice. Key words: Late preterm birth; Influencing factors; Mode of delivery; Neonates; Prognosis