Fig. 2From: Use of diagnostic likelihood ratio of outcome to evaluate misclassification bias in the planning of database studiesDLR+ as a function of disease prevalence of the validation study population. Positive diagnostic likelihood ratio (DLR+) is plotted against disease prevalence of the validation study population. Lines are drawn for selected values of positive-predictive value (PPV) for the validation study. The plot is based on Eq. 2 for the validation study populationBack to article page