Positive predictive value
From RadsWiki
[edit] Definition
- The positive predictive value (aka precision rate) is the proportion of patients with positive test results who are correctly diagnosed.
- Relationships among terms
Disease | |||
True | False | ||
Test outcome | Positive | True Positive (TP) | False Positive (FP) |
Negative | False Negative (FN) | True Negative (TN) |
Positive Predictive Value = TP/ (TP + FP)
[edit] See also
[edit] References
- Gunnarsson RK, Lanke J. The predictive value of microbiologic diagnostic tests if asymptomatic carriers are present. Statist. Med. 2002; 21:1773-1785