在ST升高心肌梗塞后的一年生存预测模型:对Cox脆弱模型和机器学习进行比较分析
Mansour Rezaei1, Maryam Montaseri2, Shayan Mostafaei3
1Social Development and Health Promotion Research Center, Health Institute, Kermanshah University of Medical Sciences, Kermanshah, Iran.
Caspian journal of internal medicine
|December 12, 2025
概括
有脆弱性的考克斯模型最好预测ST升高心肌梗塞 (STEMI) 患者的1年死亡率. 该模型解释了未观察到的患者差异,与随机生存森林和生存支持向量回归等其他方法相比,改善了生存预测.
科学领域:
- 心脏病学 心脏病学
- 生物统计学 生物统计学
- 机器学习 机器学习
背景情况:
- ST升高心肌梗塞 (STEMI) 具有显著的死亡风险.
- 准确的生存预测对于管理STEMI患者至关重要.
- 现有的模型可能无法完全捕捉患者的异质性.
研究的目的:
- 开发和比较STEMI患者1年死亡率的预测模型.
- 评估考克斯模型 (具有和没有脆弱性),随机生存森林 (RSF) 和生存支持向量回归 (SVR) 的性能.
主要方法:
- 利用了2800名STEMI患者的数据.
- 应用于多重归算缺失的数据.
- 我们比较了四种生存分析模型:有/没有脆弱的Cox,RSF和SVR.
- 使用C指数,时间依赖的AUC和Brier分数来评估模型性能.
主要成果:
- 有脆弱性的考克斯模型表现出卓越的性能 (C指数=0.891,AUC=0.9134,布赖尔分数=0.0458).
- 一年死亡率的关键预测因素包括吸烟,静脉血压,左心室喷射率,膜过率和再注射疗法.
- 像吸烟 (HR=1.46) 和缺乏再注射治疗 (HR=2.71) 这样的因素增加了死亡风险.
结论:
- 脆弱模型在STEMI生存预测中比标准考克斯回归具有优势.
- 考虑到未观察到的异质性,可以提高STEMI中死亡风险估计的准确性.
- 这些发现支持进一步开发心血管结果预测中的脆弱模型.
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