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2499 pages added, reviewed or updated during the last month (last updated: 18/4/2021)


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negative predictive value

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This is the post-test probability of a negative test. This test addresses the question - if a person has a negative test, what is the probability that he or she does not have the condition:

  • true negative / (false negative + true negative) x 100%
 Target Disorder PresentTarget Disorder Absent
Test result positiveTrue Positive (TP)False Positive (FP)
Test result negativeFalse Negative (FN)True Negative (TN)

Last reviewed 02/2020

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