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脑外伤患者预后预测模型的建立及验证 被引量:8

Development and validation of prognostic models for patients with traumatic brain injury
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摘要 目的建立并验证预测脑外伤患者30 d内死亡率及6个月预后不良率的预测模型。方法收集1 016例中重度脑外伤患者临床资料用作预测模型建立数据。系统分析入院相关危险因素与预后关系,Logistic回归建立不同的预测模型,通过拟合优度检验和计算C统计值(ROC曲线下面积)观察模型性能。内、外部验证模型并最终确定预测模型,开发脑外伤患者预后预测工具。结果 Logistic回归分析表明高龄、瞳孔对光反射消失、运动GCS评分下降、异常CT特征和异常常规实验室检查是脑外伤患者预后不良的独立危险因素。基于入院危险因素建立的预测模型性能良好(拟合优度检验P>0.05,C统计值0.709~0.882)。内部验证表明模型无过度乐观,外部验证证实预测模型外部适用性强(拟合优度检验P>0.05,C统计值0.844~0.992)。结论建立的预测模型可以早期、简单且准确地预测脑外伤患者的预后,脑外伤患者预后预测工具可用于临床辅助临床决策的制定。 目的建立并验证预测脑外伤患者30 d内死亡率及6个月预后不良率的预测模型。方法收集1 016例中重度脑外伤患者临床资料用作预测模型建立数据。系统分析入院相关危险因素与预后关系,Logistic回归建立不同的预测模型,通过拟合优度检验和计算C统计值(ROC曲线下面积)观察模型性能。内、外部验证模型并最终确定预测模型,开发脑外伤患者预后预测工具。结果 Logistic回归分析表明高龄、瞳孔对光反射消失、运动GCS评分下降、异常CT特征和异常常规实验室检查是脑外伤患者预后不良的独立危险因素。基于入院危险因素建立的预测模型性能良好(拟合优度检验P>0.05,C统计值0.709~0.882)。内部验证表明模型无过度乐观,外部验证证实预测模型外部适用性强(拟合优度检验P>0.05,C统计值0.844~0.992)。结论建立的预测模型可以早期、简单且准确地预测脑外伤患者的预后,脑外伤患者预后预测工具可用于临床辅助临床决策的制定。
出处 《上海交通大学学报(医学版)》 CAS CSCD 北大核心 2011年第11期1592-1598,共7页 Journal of Shanghai Jiao tong University:Medical Science
基金 上海市科委重点项目(10JC1412500)~~
关键词 预测模型 预测 脑外伤 验证 预后 prognostic model prediction traumatic brain injury validation prognosis
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参考文献15

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同被引文献43

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