A FAMILY OF NONPARAMETRIC STATISTICS FOR COMPARING DIAGNOSTIC MARKERS WITH PAIRED OR UNPAIRED DATA
成果类型：
Article
署名作者：
WIEAND, S; GAIL, MH; JAMES, BR; JAMES, KL
署名单位：
Mayo Clinic; National Institutes of Health (NIH) - USA; NIH National Cancer Institute (NCI)
刊物名称：
BIOMETRIKA
ISSN/ISSBN：
0006-3444
DOI：
10.2307/2336123
发表日期：
1989
页码：
585592
关键词：
摘要：
In this paper we study a broad class of nonparametric statistics for comparing two diagnostic markers. One can compare the sensitivities of these diagnostic markers over restricted ranges of specificity by selecting an appropriate statistic from this class. As special cases, one can compare the entire area under the receiver-operator curve (Hanley and McNeil, 1982), or one can compare the sensitivities at a fixed common specificity. Usually we would recommend a comparison based on an average of sensitivities over a restricted high level of specificities. Test procedures and confidence intervals are based on asymptotic normality. These procedures are applicable for paired data, in which both diagnostic markers are performed on each subject, and for unpaired data. The procedures may be used to compare two real functions of multiple diagnostic markers as well as to compare individual markers.