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Positive predictive value metrics for multicancer detection tests

delete2026-02-13
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PRE
AI
P
Paul F. Pinsky
E
Elyse M LeeVan
C
Christos Patriotis
W
Wendy S Rubinstein
DOI:10.1177/09691413261421478delete
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摘要

摘要

En 中文
引言 多癌种检测(MCD)试验通常针对选定的癌种部位,但也可能对其他部位具有一定的检测能力;此外,它们通常对阳性检测结果给出预测的癌症信号来源(CSO)。阳性预测值(PPV)是广泛用于评估单癌筛查试验性能的指标。本研究旨在多癌种检测背景下,以多种方式定义PPV,创建一个原型MCD试验,并展示这些PPV指标的性质,包括定性和定量特征。 方法 PPV的定义取决于分子和分母包含的研究对象。PPV ALL 、PPV T 和PPV CSO 的分母均为所有筛查阳性受试者,分子则分别为所有具有任何癌症诊断的受试者、在任何靶向部位有诊断的受试者,以及在被预测CSO部位有诊断的受试者。预测CSO部位特异性的PPV定义类似,但分母为CSO被预测为特定癌种部位的受试者。本研究采用来自病例对照试验的多癌种检测性能数据以及人群发病率数据,确定原型MCD试验的敏感性、特异性、CSO准确性及癌症患病率,并计算相应的PPV。同时评估了非靶向癌种部位的一系列敏感性率。 结果 随着非靶向部位敏感性的增加,PPV ALL 呈上升趋势,而PPV T 则呈下降趋势。预测部位特异性的PPV主要取决于癌种部位CSO的准确性,而非部位人群患病率。 结论 对于多癌种检测试验,PPV可以以多种方式定义。其临床实用性取决于具体临床情境。提供多癌种检测试验的公司可考虑与临床医生讨论不同PPV的临床实用性,以决定在检测报告中包含哪些指标。
Keyword:
Multicancer detection
Positive predictive value
Cancer signal origin
Test performance
Clinical usefulness

期刊

Journal of Medical Screening 封面图
Journal of Medical Screening
IF:
2.3
论文数:
79
被引数:
1.3K

机构

N
national cancer institute
学者数:
1.3K
论文数: 425
被引数: 0
引用论文

引用论文

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