Estimation of multiple ordered ROC curves using placement values.

ABSTRACT: In many diagnostic accuracy studies, a priori orders may be available on multiple receiver operating characteristic curves. For example, being closer to delivery, fetal ultrasound measures in the third trimester should be no less accurate than those in the second trimester in predicting small-for-gestational-age births. Such an a priori order should be incorporated in estimating receiver operating characteristic curves and associated summary accuracy statistics, as it can potentially improve statistical efficiency of these estimates. Early work in the literature has mainly taken an indirect approach to this task and has induced the desired a priori order through modeling test score distributions. We instead propose a new strategy that incorporates the order directly th

SUBMITTER: Ghosal S 

PROVIDER: S-EPMC9614716 | biostudies-literature | 2022 Aug

REPOSITORIES: biostudies-literature