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. 2009 Dec 9;4(12):e8215. doi: 10.1371/journal.pone.0008215

Table 5. Comparison of parameter estimates derived from the herein described Bayesian model and from a previously applied gold standard approach [25].

Cut-off SICCT SENTRY 100 GENios Pro
>4mm >2mm ≥15 ≥38
Bayesian method:
Sensitivity 51.1% (42.1–60.1%) 66.3% (57.5–74.6%) 45.5% (39.3–52.9%) 47.2% (39.9–54.7%)
Specificity 98.6% (97.9–99.2%) 89.2% (86.6–91.5%) 96.4% (95.4–97.4%) 92.4% (90.7–93.9%)
AUC 0.80 (0.73–0.87) 0.80 (0.73–0.87) 0.57 (0.51–0.65) 0.64 (0.57–0.72)
Gold standard approach:
Sensitivity 20.0% (5.7–43.7%)* 65.0% (43.3–81.9%) 30.0% (14.5–51.9%) 50.0% (29.9–70.1%)
Specificity 93.1% (91.1–94.6%) 86.7% (84.2–88.9%) 94.4% (92.7–95.8%) 88.4% (86.1–90.4%)
AUC 0.80 (0.71–0.88) 0.80 (0.71–0.88) 0.70 (0.58–0.82) 0.67 (0.52–0.82)

The previously conducted diagnostic test evaluation considered animals with PCR confirmed infections and animals not showing lesions during post mortem meat inspection as disease positive and negative animals, respectively.

*

95% binomial exact confidence intervals are indicated because (estimated value)×(sample size)≤5; for all other parameter estimates in the gold standard approach, Wilson confidence intervals are shown.