Table 2.
Posterior prevalence, sensitivity, and specificity of both methods
| Sensitivity median (CI) | Specificity median (CI) | |||||
|---|---|---|---|---|---|---|
| Model | Estimates | Prevalence median (CI) | STD | MOL | STD | MOL |
| A | Prior | 0.16 (0.03–0.4) | 0.32 (0.1–0.63) | 0.98 (0.94–1) | 0.95 (0.87–0.98) | |
| Posterior (IN) | 0.69 (0.58–0.84) | 0.24 (0.18–0.31) | 0.68 (0.56–0.8) | 0.99 (0.95–1) | 0.95 (0.86–0.99) | |
| Posterior (DE) | 0.88 (0.67–0.99) | 0.2 (0.15–0.27) | 0.56 (0.47–0.71) | 0.98 (0.94–1) | 0.95 (0.86–0.99) | |
| B | Prior | 0.39 (0.09–0.75) | 0.68 (0.13–0.98) | 0.87 (0.7–0.97) | 0.76 (0.44–0.93) | |
| Posterior (IN) | 0.69 (0.58–0.84) | 0.35 (0.23–0.66) | 0.86 (0.68–0.99) | 0.92 (0.87–0.97) | 0.72 (0.56–0.92) | |
| Posterior (DE) | 0.88 (0.67–0.99) | 0.25 (0.12–0.61) | 0.7 (0.38–0.98) | 0.87 (0.76–0.96) | 0.66 (0.46–0.91) | |
STD, standard blood culture methods; MOL, molecular methods; CI, credible intervals (2.5–97.5%); IN, conditional independence assumption; DE, conditional dependence assumption