Standard 2×2 Epidemiology Table
Clinical tests | Proof of disease (i.e., surgery) | |
---|---|---|
Disease present | Disease not present | |
Positive clinical test | TP (32) | FP (4) |
Negative clinical test | FN (1) | TN (8) |
Sensitivity = TP/TP + FN
Specificity = TN/TN + FP
Positive predicative value = TP/TP + FP
Negative predicative value = TN/TN + FN