DiagCORE Respiratory Panel 2 Instructions for Use 45
The assay sensitivity and specificity, for the specific organisms and for all organisms combined,
are intrinsic performance parameters of a given assay and do not vary depending on
prevalence. In contrast, both the negative and positive predictive values of a test result are
dependent on the disease/organism prevalence. Please note that a higher prevalence favors
the positive predictive value of a test results, while a lower prevalence favors the negative
predictive value of a test result.