Table 3. Results from four cell models: parameter estimates (with 95% Bayesian credibility intervals) of diagnostic sensitivity (Se) and specificity (Sp) for the single intradermal comparative tuberculin test (1) and abattoir inspection (2), negative (CovDn) and positive (CovDp) covariances between the two test, average true prevalence (P) and deviance information criterion (DIC) from the traditional four cell conditional independence and dependence models excluding/including outbreak specific sensitivities (–/+ OSS).

Model	Without OSS		With OSS
Parameter	Independence	Dependence	Independence
Se1	0.814(0.759–0.869)	0.820(0.711–0.915)	0.767(0.703–0.833)
Sp1	0.979(0.962–0.995)	0.971(0.952–0.9887)	0.988(0.973–0.999)
Se2	0.329(0.285–0.376)	0.329(0.270–0.392)	0.269(0.215–0.331)
Sp2	0.998(0.993–1.000)	0.994(0.985–0.999)	0.999(0.995–1.000)
CovDn	–	0.004(0.000–0.011)	–
CovDp	–	–0.005(–0.044–0.031)	–
P	0.178(0.157–0.201)	0.170(0.144–0.200)	0.195(0.172–0.217)
DIC	559.36	557.69	465.22