Table 6.
- Disease is the first row (on the top) and test is the first column by convention.
- The numerator for predictive values and sensitivity/ specificity is always a TRUE value (TN or TP).
- Sensitivity/specificity are calculated along columns and rows are associated with predictive value calculations (see above).
- A highly sensitive test is used to rule out disease (SnOUT): low false-negative rate.
- A highly specific test is used to rule in disease (SpIN): low false-positive rate.
NPV=negative predictive value, PPV=positive predictive value.