Table 1 Prior information used in the 2-test latent class Bayesian hierarchical model developed to estimate test sensitivity and specificity for 2 paratuberculosis fecal tests in dairy goats and dairy sheep in Ontario, Canada
Parameter | Distribution | Dairy Goats | Dairy Sheep | ||||
|---|---|---|---|---|---|---|---|
(a, b) | 95 % certain | Mode | (a, b) | 95 % certain | Mode | ||
Fecal culture specificity | Beta | 560.72, 6.65 | > 0.98 | 0.99 | 560.72, 6.65 | > 0.98 | 0.99 |
Fecal PCR specificity | Beta | 99.70, 6.19 | > 0.90 | 0.95 | 99.70, 6.19 | > 0.90 | 0.95 |
Herd-level prevalence | Beta | 19.48, 5.62 | > 0.63 | 0.80 | 8.35, 4.62 | > 0.42 | 0.67 |
precision μ | 95 % certain | Median | precision μ | 95 % certain | Median | ||
Within-herd prevalence | Normal | 175.41 | < 0.50 | 0.35 | 55.62 | < 0.74 | 0.48 |