positive predictive value
Positive predictive value (PPV) is the probability that a patient who has received a positive screening test result actually has the disorder. PPV is important in counseling and managing patients.
Compare to sensitivity which describes the ability of a test to make a correct call in a case where it is already known that disease is present (true positive rate). Sensitivity is important in laboratory medicine to define performance characteristics of a screening test.
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Synonyms:
PPV
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