Calculating PPV & NPV with a 2x2 Table

This video demonstrates how to calculate positive predictive values (PPV) and negative predictive values (NPV) of a medical test using a standard 2x2 table.

[@SRCCBiostatistics]

At 1:04 the NPV calculation should read NPV = 0.996 rather than 0.10. Apologies for the typo.