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Table 2 Diagnostic accuracy of CTU for the detection of bladder cancer from both reviewers and their consensus

From: Computed tomography urography with corticomedullary phase can exclude urinary bladder cancer with high accuracy

  Consensus Reviewer 1 Reviewer 2
Cancer Control Cancer Control Cancer Control
Positive, n 173 1 170 1 154 0
Indeterminate, n 19 27 20 27 33 28
Negative, n 15 62 17 62 20 62
FNR 0.07 (0.04–0.12)   0.08 (0.05–0.13)   0.10 (0.06–0.15)  
FPR 0.01 (0.00–0.07)   0.01 (0.00–0.07)   0.00 (0.00–0.05)  
NPV* 0.99 (0.92–1.00)   0.98 (0.92–1.00)   0.98 (0.92–1.00)  
PPV* 0.91 (0.86–0.95)   0.91 (0.86–0.95)   1.00 (0.97–1.00)  
  1. Confidence intervals (95%) in parentheses
  2. CTU: Computed tomography-urography; FNR: False negative rate; FPR: False positive rate; PPV: Positive predictive value; NPV: Negative predictive value
  3. *Values were calculated for the entire cohort of 2195 patients with a cancer prevalence of 12% and after matched exclusions