XGBoost在诊断败血症相关血小板缺血方面表现优于其他机器学习模型:一项多中心回顾性研究
Busra Emir1, Evrim Ozmen2, Sukriye Miray Kilincer Bozgul3
1Department of Biostatistics, Faculty of Medicine, Izmir Katip Celebi University, Izmir, Türkiye.
Frontiers in medicine
|February 25, 2026
概括
机器学习模型准确地诊断出与败血症相关的血小板缺血. 极端梯度增强 (XGBoost) 显示出最佳性能,为败血症管理中的临床决策提供了一个有前途的工具.
科学领域:
- 计算生物学和生物信息学
- 医学信息学和人工智能
背景情况:
- 败血症相关的血小板缺血是一种常见的并发症,与患者不良后果有关.
- 目前针对败血症相关的血小板缺血的诊断方法面临挑战,需要先进的方法.
- 机器学习 (ML) 模型有可能提高重症监护机构的诊断准确性.
研究的目的:
- 为了比较各种ML模型对败血症相关的血小板缺血的诊断性能.
- 评估随机森林 (RF),人工神经网络 (ANN),极端梯度增强 (XGBoost) 和天真贝叶斯 (NB) 模型.
- 通过使用预定义的性能指标评估模型有效性,并确定关键诊断变量.
主要方法:
- 来自两个中心的1447名败血症患者的电子健康记录 (2013-2023) 的回顾性分析.
- 数据分为80%的培训和20%的测试集,对培训数据进行了10倍的交叉验证.
- 使用准确度,精度,F1分数,接收器操作特征曲线 (AUROC) 下面面积和混矩阵的性能评估;通过SHAP.功能重要性分析.
主要成果:
- 在53.4%的败血症患者中存在血栓塞缩症.
- 在交叉验证期间,XGBoost以91.10%的准确度和92.31%的F1分数表现出卓越的性能.
- 所有评估的模型 (RF,ANN,XGBoost,NB) 在交叉验证和测试集上都实现了超过90%的AUROC值.
结论:
- XGBoost模型的诊断性能最高,交叉验证的AUROC为98.60%,测试组的AUROC为97.50%.
- ML模型,特别是XGBoost,显示出精确和高效诊断败血症相关的血小板缺血的巨大潜力.
- 这些发现支持将先进的ML工具集成到临床实践中,以改善败血症管理.
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