The “DICA” Endoscopic Classification for Diverticular Disease of the Colon Shows a Significant Interobserver Agreement among Community Endoscopists

Authors

  • Antonio Tursi Territorial Gastroenterology Service, ASL BAT, Andria, BT, Italy
  • Giovanni Brandimarte Division of Internal Medicine and Gastroenterology, “Cristo Re” Hospital, Rome, Italy
  • Francesco di Mario Division of Gastroenterology, Department of Medicine and Surgery, University of Parma, Parma, Italy
  • Gerardo Nardone Division of Gastroenterology, “Federico II” University, Naples, Italy
  • Carmelo Scarpignato Clinical Pharmacology and Digestive Pathophysiology Unit, Department of Clinical and Experimental Medicine, University of Parma, Parma, Italy
  • Marcello Picchio Division of Surgery, “P. Colombo” Hospital, ASL Roma 6, Velletri, Rome, Italy
  • Walter Elisei Division of gastroenterology, ASL Roma, Italy
  • DICA Italian Group DICA Italian Group, Italy

DOI:

https://doi.org/10.15403/jgld.2014.1121.281.dic

Keywords:

agreement, colonoscopy, diverticular disease of the colon, endoscopic classification

Abstract

Background & Aim: An endoscopic classification of Diverticular Disease (DD), called DICA (Diverticular Inflammation and Complication Assessment) is currently available. It scores severity of the disease as DICA 1, DICA 2 and DICA 3. Our aim was to assess the agreement levels for this classification among an endoscopist community setting.
Methods: A total of 66 endoscopists independently scored a set of DD endoscopic videos. The percentages of overall agreement on the DICA score and a free-marginal multirater kappa (κ) coefficient were reported as statistical measures of the inter-rater agreement.
Results: The overall agreement levels were: 70.2% for DICA 1, 70.5% for DICA 2, 81.3% for DICA 3. The free marginal κ was: 0.553 for DICA 1, 0.558 for DICA 2, 0.719 for DICA 3. The agreement levels among the expert group were: 78.8% for DICA 1, 80.2% for DICA 2, 88.5% for DICA 3. The free marginal κ among the expert group were: 0.682 for DICA 1, 0.712 for DICA 2, 0.828 for DICA 3. The agreement of expert raters on the single item of the DICA classification was superior to the agreement of the overall group.
Conclusions: The overall inter-rater agreement for DICA score in this study ranges from moderate to good, with a significant improvement in the expert subgroup of raters. Diverticular Inflammation and Complication Assessment is a simple and reproducible endoscopic scoring system.

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Published

2019-03-01

How to Cite

1.
Tursi A, Brandimarte G, di Mario F, Nardone G, Scarpignato C, Picchio M, Elisei W, Group DI. The “DICA” Endoscopic Classification for Diverticular Disease of the Colon Shows a Significant Interobserver Agreement among Community Endoscopists. JGLD [Internet]. 2019 Mar. 1 [cited 2026 May 9];28(1):23-7. Available from: https://jgld.ro/jgld/index.php/jgld/article/view/151

Issue

Vol. 28 No. 1: March 2019

Section

Original Article