目的:探讨产妇入院时是否临产对分娩方式的影响.方法:采用回顾性队列研究方法,对本院1年间全部单胎、头位、自然临产的正常初产妇(194例)按入院时临产情况分为未临产入院组(101例)和临产入院组(93例),比较两组的剖宫产率.结果:未临产入院组剖宫产率明显高于临产人院组(43.6% vs.12.9%,RR=3.38,95%CI:5.62～2.03).剖宫产指征主要为胎儿窘迫及产程停滞.结论:对未临产入院的孕妇进行过多的医疗干预可增加剖宫产率.%Objective: To investigate the effect of the timing of admission in labor ward on the approach of delivery. Methods: A retrospective cohort study was conducted. A total of 194 low risk primigravidae in labor spontaneously were recruited according the signs of labor as "false" labor group ( n = 101 ) and "true" labor group ( n = 93 ). The cesarean section rate of"false" and "true" labor groups was compared. Results: There was a significant higher rate of cesarean section in the "false" labor group who exposed to the hospital environment earlier than the "true" labor group (43.6％ vs. 12.9％, RR = 3.38, 95％ CI: 5.62-2.03). The main indications of cesarean section in the "false" labor group were fetal distress and labor arrested.Conclusion: An early hospital admission of the primigravidae not in active labor may increase unnecessary intrapartum interventions and result of a significantly increased cesarean delivery rate.
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