Table 4.

Diagnostic performance of genetic signature on internal and external validation sets

Validation	Internal, %	External, %
Sensitivity	100	100
Specificity	100	50
Positive predictive value	100	88.89
Negative predictive value	100	100
Accuracy*	100	88.89

^*Accuracy refers to the rate of correct predictions and is equal to the sum of true positive and true negative observations divided by the total number of observations.