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Table 5 Inter-observer and intra-observer agreements of experts and non-experts for the NICE classification

From: Utility of the narrow-band imaging international colorectal endoscopic classification for optical diagnosis of colorectal polyp histology in clinical practice: a retrospective study

  Kappa value
Average Median Range
Inter-observer agreement    
 Experts 0.86 0.86 0.76–0.93
 Non-experts 0.59 0.62 0.47–0.63
Intra-observer agreement    
 Experts 0.82 0.83 0.68–0.90
 Non-experts 0.63 0.63 0.54–0.70
  1. Observers were experienced with > 3000 colonoscopies
  2. Observers were medical students
  3. NICE classification Narrow-band imaging international colorectal endoscopic classification
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BMC Gastroenterology

ISSN: 1471-230X

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