会阴切开危险因素的Logistic回归分析

Logistic regression analysis on the risk factors of episiotomy

目的:探讨引起会阴切开的危险因素,为严格控制会阴切开提供科学依据。方法:回顾性分析2013年在该院产科行阴道分娩的400例单胎产妇,其中会阴切开200例,非会阴切开200例,对可能引起会阴切开的因素进行单因素分析和Logistic回归分析。结果:单因素分析共筛选出8个与会阴切开有关的因素,肩难产和臀位助产与会阴切开无关;Logistic回归分析确定胎儿窘迫、耻骨弓低、会阴韧硬、巨大儿、早产、孕妇体重指数、高度近视及妊娠期高血压疾病为会阴切开的相关危险因素,其OR值分别为4.57、3.89、3.57、3.48、3.01、2.57、2.45和2.04。结论:严格把控会阴切开的指征,提倡自然分娩,最大程度维护产妇会阴的完整性。

Objective： To explore the risk factors of episiotomy, provide scientific basis for strictly controlling episiotomy. Methods： Four hundred pregnant women of singleton-gestation receiving vaginal delivery in Department of Obstetrics in the hospital in 2013 were analyzed, 200 pregnant women of them underwent episiotomy, and the other 200 pregnant women did not. The risk factors of episiotomy were analyzed by univariate analysis and Logistic regression analysis. Results： Eight relevant factors of episiotomy were screened out by univariate analysis, shoulder dystocia and assisted breech delivery were not correlated with episiotomy; Logistic regression analysis showed that fetal distress, low pubic arch, hard perineum, maerosomia, preterm birth, maternal body mass index （BMI）, high myopia, and hypertensive disorder complicating pregnancy （HDCP） were risk factors of episiotomy, OR values were 4. 57, 3.89, 3.57, 3.48, 3. Ol, 2. 57, 2.45, and 2. 04, respectively. Conclusion： The indications of episiotomy should be controlled strictly and natural delivery is advocated to try best to maintain the integrity of maternal perineum.