Title: Test Accuracy As Positive and Negative Predictive Values
Abstract:Abstract This chapter explains how to generate positive and negative predictive values from the rows of a 2×2 table and that unlike sensitivity and specificity, they answer patient-relevant questions ...Abstract This chapter explains how to generate positive and negative predictive values from the rows of a 2×2 table and that unlike sensitivity and specificity, they answer patient-relevant questions such as the probability of disease with a given result. It goes on to describe an important drawback of predictive values, namely that they vary with disease prevalence. It emphasizes that positive and negative predictive values are only meaningful when quoted alongside disease prevalence and are only directly applicable to individual patients when the probability of disease approximates the prevalence in the study from which the values are calculated.Read More
Publication Year: 2022
Publication Date: 2022-12-01
Language: en
Type: book-chapter
Indexed In: ['crossref']
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