Probability theory
Positive predictive value
Positive predictive value is a statistical property of events or a data set.
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PPV=Se·Prev/[Se·Prev+(1−Sp)(1−Prev)]
- 01Given
- 02Calculation
- 03Answer
What it means
Positive predictive value is a statistical property of events or a data set.
How it works and where it is used
Use this calculation for updating probabilities from evidence and evaluating tests, risks, and diagnostic decisions.