國家衛生研究院 NHRI:Item 3990099045/1790
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    題名: On the exact interval estimation for the difference in paired areas under the ROC curves
    作者: Li, CR;Liao, CT;Liu, JP
    貢獻者: Division of Biostatistics and Bioinformatics
    摘要: An important measure for comparison of accuracy between two diagnostic procedures is the difference in paired areas under the receiver operating characteristic (ROC) curves. Non-parametric and maximum likelihood methods have been proposed for interval estimation for the difference in paired areas under ROC curves. However, these two methods are asymptotic procedures and their performance in finite sample sizes has not been thoroughly investigated. We propose to use the concept of generalized pivotal quantities (GPQs) to construct an exact confidence interval for the difference in paired areas under ROC curves. A simulation study is conducted to empirically investigate the probability coverage and expected length of the three methods for various combinations of sample sizes, values of the area under the ROC curve and correlations. Simulation results demonstrate that the exact confidence interval based on the concept of GPQs provides not only sufficient probability coverage but also reasonable expected length. Numerical examples using published data sets illustrate the proposed method.
    關鍵詞: Mathematical & Computational Biology;Public, Environmental & Occupational Health;Medical Informatics;Medicine, Research & Experimental;Statistics & Probability
    日期: 2008-01-30
    關聯: Statistics in Medicine. 2008 Jan;27(2):224-242.
    Link to: http://dx.doi.org/10.1002/sim.2760
    JIF/Ranking 2023: http://gateway.webofknowledge.com/gateway/Gateway.cgi?GWVersion=2&SrcAuth=NHRI&SrcApp=NHRI_IR&KeyISSN=0277-6715&DestApp=IC2JCR
    Cited Times(WOS): https://www.webofscience.com/wos/woscc/full-record/WOS:000253098900011
    Cited Times(Scopus): http://www.scopus.com/inward/record.url?partnerID=HzOxMe3b&scp=38849089974
    顯示於類別:[劉仁沛(1998-2002)] 期刊論文

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