Aggregating multiple test results to improve medical decision-making
Fig 6
Measured prevalence as a function of true prevalence f under the assumption that the measured, error-corrected prevalence
in Eq (37) can be identified with the true prevalence f.
The results shown in panels (A) and (B) are based on AND andOR aggregations of two tests i ∈ {1, 2}, respectively. We consider three different combinations of true positive and true negative rates (solid black lines:TNRi = 0.95 and TNRi = 0.95; dashed red lines: TNRi = 0.90 and TNRi = 0.95; dash-dotted blue lines: TNRi = 0.95 and TNRi = 0.90). Grey lines indicate measured prevalences associated with individual tests.