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Vascular III statistical analysis tool

Sensitivity The ability of a test to detect disease TP ÷ (TP+FN)
Specificity The ability of a test to identify normality TN ÷ (FP+TN)
Positive Predictive Value The percentage of non-invasive tests which accurately predict abnormality TP ÷ (TP+FP)
Negative Predictive Value The number of non-invasive tests which accurately predict normality TN ÷ (TN+FN)
Accuracy The overall percentage of correct non-invasive diagnoses (how well does your lab detect and rule out disease?) (TP+TN)÷(TP+FP+TN+FN)
Created by: lefut