positive predictive value
Last reviewed 10/2021
Positive predictive value:
- true positives / (true positives + false positives) x100
i.e. the proportion of screening tests that are correct.
| Target Disorder Present | Target Disorder Absent | |
| Test result positive | True Positive (TP) | False Positive (FP) |
| Test result negative | False Negative (FN) | True Negative (TN) |