{"title":"Youden index and Tjur’s R2 in 2 × 2 tables","authors":"Linard Hoessly","doi":"10.1016/j.annepidem.2025.01.012","DOIUrl":null,"url":null,"abstract":"<div><div>We refer to a recent paper by Hughes and show that despite similarities in the rough form between Tjurs <span><math><msup><mrow><mi>R</mi></mrow><mrow><mn>2</mn></mrow></msup></math></span> coefficient of discrimination and Youden index for assessing diagnostic test performance on <span><math><mrow><mn>2</mn><mo>×</mo><mn>2</mn></mrow></math></span> contingency tables, the two functions are different.</div></div>","PeriodicalId":50767,"journal":{"name":"Annals of Epidemiology","volume":"103 ","pages":"Pages 28-29"},"PeriodicalIF":3.3000,"publicationDate":"2025-02-10","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":"0","resultStr":null,"platform":"Semanticscholar","paperid":null,"PeriodicalName":"Annals of Epidemiology","FirstCategoryId":"3","ListUrlMain":"https://www.sciencedirect.com/science/article/pii/S1047279725000183","RegionNum":3,"RegionCategory":"医学","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":null,"EPubDate":"","PubModel":"","JCR":"Q1","JCRName":"PUBLIC, ENVIRONMENTAL & OCCUPATIONAL HEALTH","Score":null,"Total":0}
引用次数: 0
Abstract
We refer to a recent paper by Hughes and show that despite similarities in the rough form between Tjurs coefficient of discrimination and Youden index for assessing diagnostic test performance on contingency tables, the two functions are different.
期刊介绍:
The journal emphasizes the application of epidemiologic methods to issues that affect the distribution and determinants of human illness in diverse contexts. Its primary focus is on chronic and acute conditions of diverse etiologies and of major importance to clinical medicine, public health, and health care delivery.