Estimates of sensitivity, specificity, positive and negative predictive value with 95% confidence interval for each of the diagnostic tests, compared to DFA model classification.

Case definition: animals classified as positive by the DFA model (excluding WB17). Sample used for the calculation of each parameters were: all animals under study (n = 167) for sensitivity, negative reference animals (n = 90) for specificity, cases and negative reference animals (n = 112) for PPV and NPV. Prevalence for PPV and NPV calculation was 19.6%.