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Table 3 Diagnostic performances for histology predictions by using digital chromoendoscopy

From: High-definition endoscopy with digital chromoendoscopy for histologic prediction of distal colorectal polyps

  Diagnostic performances
  Polyps (n) Sensitivity (95 % CI) Specificity (95 % CI) PPV (95 % CI) NPV (95 % CI)
All distal polyps
 Overall prediction 121 93.3 % (82.7–97.8) 88.7 % (77.5–95) 88.7 % (77.5–95) 93.2 % (82.7–97.8)
 HC prediction 107 98.1 % (88.6–99.9) 94.4 % (83.7–98.6) 94.5 % (83.9–98.6) 98.1 % (88.4–99.9)
Polyps in the rectosigmoid only
 Overall prediction 79 90.3 % (73.1–97.5) 87.5 % (74.1–94.8) 82.4 % (64.8–92.6) 93.3 % (80.1–98.3)
 HC prediction 72 96.4 % (79.8–99.8) 95.5 % (83.3–99.2) 93.1 % (75.8–98.8) 97.7 % (86.2–99.9)
  1. CI Confidence Interval, PPV Positive Predictive Value, NPV Negative Predictive Value, HC High Confidence