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Table 4 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 (severe)b 87.6 75.3–95.2
  IFN-γ c 55.7 38.6–74.4
  ELISAd 47.4 30.0–71.2
Specificity SIT (severe)b 83.6 74.2–92.8
  IFN-γ c 93.5 87.0–98.1
  ELISAd 90.9 84.5–95.5
Disease prevalence   22.2 11.9–33.6
Covariance of infected cattle   −1.2 −7.3-6.0
Covariance of uninfected cattle   3.4 0.0–8.0
  1. a 95% PPI = 95% posterior probability interval
  2. b single intradermal tuberculin test using severe interpretation
  3. c interferon gamma assay
  4. d a commercial antibody detection test (M. bovis Ab ELISA)
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