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Table 3 Bayesian estimates of sensitivity and specificity for each test, and disease prevalence (%)

From: Determination of the sensitivity and specificity of bovine tuberculosis screening tests in dairy herds in Thailand using a Bayesian approach

Parameter Test Median 95% PPIa
Sensitivity SIT (standard)b 62.4 43.2–80.2
  IFN-γ c 60.1 39.8–81.3
  ELISAd 52.5 30.8–77.7
Specificity SIT (standard)b 90.6 82.9–97.6
  IFN-γ c 89.0 81.6–95.4
  ELISAd 88.3 81.8–93.3
Disease prevalence   14.1 6.7–23.4
Covariance of infected cattle   −9.9 −22.3-2.9
Covariance of uninfected cattle   2.6 −0.3-6.7
  1. a 95% PPI = 95% posterior probability interval
  2. b single intradermal tuberculin test using standard interpretation
  3. c interferon gamma assay
  4. d a commercial antibody detection test (M. bovis Ab ELISA)
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