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风险预测模型在临床实践中被广泛用于风险分层和制定治疗策略。新生物标志物的贡献大多基于受试者工作特征曲线下面积,但该指标对绝对风险的重要变化可能不敏感。基于风险分层的方法近期被提出用于比较预测模型。这些方法包括重新分类校准统计量、净重新分类改善和综合区分力改善。本文演示了重新分类指标的应用,并展示了这些指标在一组女性中对知名心血管风险预测因子的表现。这些指标旨在评估新模型和新标志物改变风险层级及调整治疗决策的潜力。
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Nancy R. Cook
Paul M. Ridker
Annals of Internal Medicine
Brigham and Women's Hospital
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Cook 等人(周二)研究了这个问题。
www.synapsesocial.com/papers/69f3edd0dc238f8197799496 — DOI: https://doi.org/10.7326/0003-4819-150-11-200906020-00007
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