Table 3 Measures of diagnostic accuracy of primary reporting on WBCT and secondary reporting after additional imaging
Index test | TP | FP | TN | FN | Sensitivity (95% CI) | Specificity (95% CI) | PPV (95% CI) | NPV (95% CI) |
|---|---|---|---|---|---|---|---|---|
Primary reporting on WBCT | 4 | 0 | 447 | 55 | 6.8% (1.9–16.5%) | 100.0% (99.2–100.0%) | 100.0% (39.8–100.0%) | 89.0% (86.0–91.6%) |
Secondary imaging and reporting | 47 | 0 | 447 | 12 | 79.7% (67.2–89.0%) | 100.0% (99.2–100.0%) | 100.0% (92.5–100.0%) | 97.4% (95.5–98.6%) |