Investigation on clinical characteristics,delivery status and delivery outcomes of parturient in vaginal delivery after the third-child policy
Objective To explore the clinical characteristics,delivery status,and delivery outcomes of parturient in vaginal delivery after the third-child policy.Methods Clinical data of 624 cases who underwent vaginal delivery from January 2020 to June 2021 before the third-child policy(control group)and 435 cases from March 2022 to August 2023 after the third-child policy(study group)were retrospectively collected.The clinical characteristics,delivery status,labor process and delivery outcomes of the two groups were compared and analyzed.Results The rate of parturient ≥35 years old,the rate of multipara ≥ 35 years old,the body mass index before pregnancy,the rate of overweight or obesity before pregnancy,the rate of macrosomia,the rate of hypertensive disorder complicating pregnancy,the rate of gestational diabetes mellitus,the rate of premature rupture of membrane,and the number of days in hospital in the study group were higher than those in the control group,but the number of pregnancies,the number of abortions,and weight gain during pregnancy were all lower than those in the control group(P<0.05).The rate of labor induction,the rate of oxytocin induction,the rate of artificial membrane rupture,the rate of vaginal assistant labor,the rate of labor analgesia,the rate of prolonged second stage of labor,the second stage of labor time and the total stages of labor time in the study group were all higher than those in the control group,and the degree of dilation of the uterine is smaller than that of the control group when implementing labor analgesia(P<0.05).The incidence of first-degree perineal laceration,second-degree perineal laceration,cervical laceration,lateral episiotomy,postpartum hemorrhage,and postpartum anemia in the study group were significantly higher than those in the control group(P<0.05).Conclusion After the third-child policy,the proportion of the advanced age parturient who undergo vaginal delivery and in-duced labor has increased,the duration of labor has been prolonged,adverse delivery outcomes also have increased,however the rate of labor analgesia is higher than ever.