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瘢痕子宫再次剖宫产产妇产后出血风险评估模型的构建与验证 被引量:1

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摘要 目的分析瘢痕子宫再次剖宫产产妇产后出血的影响因素,基于回归分析预测法构建瘢痕子宫再次剖宫产产妇产后出血风险评估模型,并验证其预测效果。方法采用便利抽样法,选取本院2019年10月—2021年10月收治的240例瘢痕子宫再次剖宫产产妇为研究对象,采用一般资料问卷调查产妇的基本信息,统计产后出血产妇的例数,计算发生率,通过Logistic回归分析法筛选瘢痕子宫再次剖宫产产妇产后出血的独立危险因素,结合回归分析结果构建产后出血风险评估模型,结合模型ROC曲线、临床应用检验模型预测效果。结果240例瘢痕子宫再次剖宫产产妇中,产后出血的产妇共22例,发生率为9.17%。Logistic回归分析结果显示,瘢痕子宫再次剖宫产产妇产后出血的独立危险因素有产后出血史、前置胎盘、胎盘植入、宫缩乏力、手术时间≥90 min、妊娠期高血压(P<0.05)。ROC曲线分析显示,ROC曲线下面积为0.904,95%CI为0.864~0.944,最大约登指数为0.655,对应灵敏度、特异度分别为0.889、0.766;经临床应用验证得到,模型预测准确率为92.00%。结论瘢痕子宫再次剖宫产产妇产后出血风险较大,且其危险因素复杂,根据回归分析结果构建的瘢痕子宫再次剖宫产产妇产后出血风险评估模型灵敏度、特异度表现出色,能实现对产后出血风险的有效区分或预测。
作者 尧桂贤
出处 《当代护士(上旬刊)》 2023年第11期118-121,共4页 Modern Nurse
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