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目的:探讨盆底肌力强度对产后压力性尿失禁发生的预测作用。方法:2013年4月至2014年3月,随机抽取200例在本院产检和分娩的产妇,收集其临床资料,并在产后6个月检测其盆底肌力强度,根据产妇是否有压力性尿失禁分为尿失禁组和非尿失禁组,运用双变量分析、分类和回归树等统计方法,建立一个产后压力性尿失禁的预测模型。结果:尿失禁组和非尿失禁组在慢性咳嗽、孕前已有尿失禁症状、孕期有新发尿失禁症状以及盆底肌力强度等4项因素中有统计学差异(P<0.05);分类与回归树预测模型提示盆底肌力强度小于等于35.5 cm H2O、孕前已有尿失禁症状、新生儿出生体重大于2988 g及孕期有新发尿失禁症状对产后尿失禁有预测作用,其中盆底肌力强度的预测作用最显著。结论:根据预测模型筛选出产后压力性尿失禁的高危人群,及早对其进行干预,对减少产后压力性尿失禁的发生率有一定的临床意义,而预测模型的构建还需进一步的研究和验证。
Objective: To investigate the predictive value of pelvic floor muscle strength on postpartum stress urinary incontinence. Methods: From April 2013 to March 2014, 200 maternal women were randomly selected for clinical examination and delivery in our hospital. The clinical data were collected and their pelvic floor muscle strength was measured 6 months after delivery. According to whether the maternal pressure was Urinary incontinence was divided into urinary incontinence group and non-incontinence group. Bivariate analysis, classification and regression tree were used to establish a prediction model of postpartum stress urinary incontinence. Results: The urinary incontinence group and the non-incontinence group had significant difference (P <0.05) among the four factors including chronic cough, urinary incontinence symptoms, new urinary incontinence during pregnancy, and pelvic floor muscle strength; And regression tree prediction model suggested pelvic floor muscle strength less than or equal to 35.5 cm H2O, pre-pregnancy symptoms of urinary incontinence, newborn birth weight greater than 2988 g and new urinary incontinence during pregnancy predict postpartum urinary incontinence, including pelvic floor Muscle strength prediction is the most significant. Conclusion: It is of clinical significance to reduce the incidence of postpartum stress urinary incontinence by screening high risk population of postpartum stress urinary incontinence according to the prediction model, and further study and verification are needed to establish the prediction model .