Table 1 Prior information for the Bayesian latent class evaluation of three serological tests for the diagnosis of brucellosis in livestock farmers and prolonged pyrexia patients (Beta distribution)
Conditional probabilities | Prior information (alpha, beta) |
|---|---|
Prevalence (pr[1] and pr[2] in the model in Additional file 1: Appendix A) [13–15] | (1.57, 29.19) |
Sensitivity of the iELISA for the diagnosis of sero-positive individuals (th1[2] and th2[2] in the model in Additional file 1: Appendix A[29] | (32.53, 14.51) |
Specificity of the iELISA for the diagnosis of sero-negative individuals (th1[3] and th2[3] in the model in Additional file 1: Appendix A) [29] | (294.08, 6.98) |
Probability to have a positive result for the RBT if the individual is sero-positive and positive for the iELISA (th1[4] and th2[4] in the model in Additional file 1: Appendix A) | (143.50, 10.09) |
Probability to have a positive result for the STAT if the individual is sero-positive and positive for the iELISA and RBT (th1[8] and th2[8] in the model in Additional file 1: Appendix A) | (313.97, 10.68) |
Probability to have a negative result for the STAT if the individual is sero-negative and negative for the iELISA and RBT (th1[12] and th2[12] in the model in Additional file 1: Appendix A) | (999.99, 6.02) |