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Table 3 Measures of diagnostic accuracy of primary reporting on WBCT and secondary reporting after additional imaging

From: Incidence and underreporting of osseous wrist and hand injuries on whole-body computed tomographies at a level 1 trauma center

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%)
  1. TP True positive, FP False positive, TN True negative, FN False negative, PPV Positive predicted value, NPV Negative predicted value, CI Confidence interval