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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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