机器学习模型的验证,用于预测直接口服抗凝剂患者的胃肠道出血
Ilsoo Kim1, Jong-Uk Hou2, Jae Hong Choe2
1Department of Internal Medicine, Seoul St. Mary's Hospital, College of Medicine, The Catholic University of Korea, Seoul, Korea.
Scandinavian journal of gastroenterology
|September 24, 2025
概括
机器学习模型,特别是XGBoost,在预测直接口服抗凝剂 (DOAC) 用户的胃肠道出血 (GIB) 方面表现有前途,表现优于传统得分. 需要进一步的研究来提高它们的预测准确性.
科学领域:
- 心脏病学 心脏病学
- 医疗信息学 医疗信息学
- 药理学 药理学是指药理学的学科.
背景情况:
- 直接口服抗凝剂 (DOAC) 广泛使用,但携带胃肠道出血 (GIB) 的风险.
- 准确预测GIB对于患者的安全和有效的抗凝管理至关重要.
- 现有的风险评分在预测DOAC用户的GIB方面存在局限性.
研究的目的:
- 开发和验证机器学习 (ML) 模型,用于使用DOACs预测患者的GIB.
- 将ML模型的性能与已建立的临床风险得分进行比较.
主要方法:
- 对4494名患者进行了回顾性分析,这些患者被处方DOAC.
- 开发和验证三种ML模型 (GBM,XGBoost,GLM) 用于12个月和24个月的GIB预测.
- 将ML模型性能 (AUC,特异性) 与HAS-BLED,ATRIA,VTE-BLEED和ORBIT分数进行比较.
主要成果:
- XGBoost表现出卓越的预测性能,在培训和验证队列中达到高AUC (例如,在24个月内达到0.905).
- 机器学习模型,特别是XGBoost,在预测GIB方面显著超过了像ORBIT这样的传统风险评分.
- 与传统评分相比,ML模型在100%的灵敏度下实现了显著更高的特异性.
结论:
- 机器学习模型,特别是XGBoost,显示了在DOAC用户中改善GIB预测的潜力.
- 虽然表现优于传统的分数,但当前的ML模型性能需要进一步提高.
- 需要进行额外的研究,以优化ML模型的临床应用,以预测DOAC相关的GIB.
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