Research Methods: Diagnostic Test Characteristics.

Hosp Pediatr

Division of Pediatric Hospital Medicine, Stanford University School of Medicine, Palo Alto, California.

Published: June 2023

The goal of a diagnostic test is to provide information on the probability of disease. In this article, we review the principles of diagnostic test characteristics, including sensitivity, specificity, positive and negative predictive value, receiver operating characteristics curves, likelihood ratios, and interval likelihood ratios. We illustrate how interval likelihood ratios optimize the information that can be obtained from test results that can take on >2 values, how they are reflected in the slope of the receiver operating characteristics curve, and how they can be easily calculated from published data.

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Source
http://dx.doi.org/10.1542/hpeds.2023-007149DOI Listing

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