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Equations

Scores

Bayesian Sensitivty/Specificity

Prevalence (0-100%) %
Sensitivity (0-100%) %
Specificity (0-100%) %
Positive Predictive Value %
Negative Predictive Value %
Positive Likelihood Ratio
Negative Likelihood Ratio

Sensitivity = TP / (TP + FN)
Specificity = TN / (FP + TN)
Prevalence = (TP + FN) / (TP + TN + FP + FN)

PPV (Positive Predictive Value) = TP / (TP + FP)
NPV (Negative Predictive Value) = TN / (FN + TN)

Positive Likelihood Ratio= SENS / ( 1-SPEC )
Negative Likelihood Ratio=( 1-SENS ) / SPEC