The reasons for selective cesarean section were mostly fear of pain (31.7%), worry about maternal or neonatal safety (22.8%), no confidence in vaginal delivery (13.9%), willingness of family members (12.7%) and influence of obstetricians (11.2%).

• 选择社会因素剖宫产术的主要原因为疼痛因素(31.；7%25)、母儿安全(22