A GEE approach to estimating accuracy and its confidence intervals for correlated data. (25th August 2019)

• Record Type: Journal Article
• Authors: Lim, Yaeji
• Is Part Of: Pharmaceutical statistics. Volume 19:Number 1(2020)
• Page Start: 59
• Page End: 70
• Publication Date: 2019-08-25
• Subjects: accuracy measures -- clustered diagnostic test -- correlated diagnostic test -- generalized estimating equations; Pharmacy -- Statistical methods -- Periodicals; Pharmacy -- Statistics -- Periodicals; 615.10727
• DOI: 10.1002/pst.1970
• Languages: English
• ISSNs: 1539-1604

Abstract

Abstract : In this paper, we provide a method for constructing confidence interval for accuracy in correlated observations, where one sample of patients is being rated by two or more diagnostic tests. Confidence intervals for other measures of diagnostic tests, such as sensitivity, specificity, positive predictive value, and negative predictive value, have already been developed for clustered or correlated observations using the generalized estimating equations (GEE) method. Here, we use the GEE and delta‐method to construct confidence intervals for accuracy, the proportion of patients who are correctly classified. Simulation results verify that the estimated confidence intervals exhibit consistent/appropriate coverage rates.