西雅图心力衰竭模型:预测心力衰竭中的存活率
Wayne C Levy1, Dariush Mozaffarian, David T Linker
1University of Washington, Seattle, WA 98177, USA. levywc@u.washington.edu
Circulation
|March 15, 2006
概括
西雅图心力衰竭模型使用简单的临床,治疗和实验室数据准确预测心力衰竭患者的存活率. 该工具有助于估计1年,2年和3年生存率,以更好地管理患者.
科学领域:
- 心脏病学 心脏病学
- 医疗信息学 医疗信息学
- 生物统计学 生物统计学
背景情况:
- 心力衰竭 (HF) 与高死亡率有关,每年从5%到75%不等.
- 预测模型对于管理HF和改善患者的治疗结果至关重要.
- 现有的模型可能不包括容易获得的临床,治疗和实验室数据.
研究的目的:
- 开发和验证一种多变量风险模型,用于预测心力衰竭患者的1,2,3年生存期.
- 为模型利用易于获取的临床,药理学,设备和实验室特征.
- 为估计预后和潜在治疗益处提供一个工具.
主要方法:
- 西雅图心力衰竭模型是使用多变量考克斯模型在1125名心力衰竭患者的队列中开发的.
- 无法使用的药物/设备的危险比率是从已发表的文献中估计的.
- 在5个额外的队列中进行了前性验证 (9942名患者,17,307人年).
主要成果:
- 该模型表现出极好的准确性,预测与实际1年生存率在导出和验证队列中非常匹配.
- 对于最低风险分数,两年生存率为92.8%,随着分数的提高而下降.
- 曲线下的整体接收器操作特征面积为0.729,表明良好的区分能力.
- 该模型可以估计添加药物或设备的生存益处.
结论:
- 西雅图心力衰竭模型准确预测心力衰竭患者的1,2,3年生存期.
- 该模型利用了易于获得的临床,药理学,设备和实验室数据.
- 该工具可以帮助临床医生对HF患者进行风险分层和治疗计划.
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