The "DICA" endoscopic classification for diverticular disease of the colon shows a significant interobserver agreement among community endoscopists

2019

JOURNAL OF GASTROINTESTINAL AND LIVER DISEASES

The "DICA" endoscopic classification for diverticular disease of the colon shows a significant interobserver agreement among community endoscopists

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Tursi Antonio, Brandimarte Giovanni, di Mario Francesco, Nardone Gerardo, Scarpignato Carmelo, Picchio Marcello, Elisei Walter, Allegretta Leonardo, Laura Annunziata Maria, Astegiano Marco, Baldi Fabio, Bassotti Gabrio, Bianco Maria Antonietta, Cambie Ginevra, Capezzuto Erminio, Caroli Alessandro, Cassieri Claudio, Salvatore Cicu Antonio, Ciliberto Enrico, Colucci Raffaele, Conigliaro Rita, Damiani Alberto, De Colibus Patrizia, De Medici Antonio, De Pretis Giovanni, Del Favero Giuseppe, Della Valle Nicola, Di Cesare Luigi, Faggiani Roberto, Febbraro Stefania, Ferrini Luciano, Fiorella Serafina, Forti Giacomo, Franceschi Marilisa, Frunzio Andrea, Germana’ Bastianello, Marco Giorgetti Gian, Giovannone Maurizio, Giovanna Graziani Maria, Antonia Lai Maria, Latella Giovanni, Giuseppina Lecca Piera, Lisi Daniele, Riccardo Lopetuso Loris, Maconi Giovanni, Domenico Mandelli Enzo, Marmo Riccardo, Maurano Attilio, Pallotta Lorella, Papa Alfredo, Parmeggiani Francesca, Penna ANTONIO DOMENICO, Pigo’ Flavia, Pontone Stefano, Pranzo Giuseppe, Ricciardelli Cristina, Luca Rizzo Giovanni, Rodino’ Stefano, Savarino Edoardo, Scaccianoce Giuseppe, Scaldaferri Franco, Schiffino Luigi, Semeraro Chiara, Stroppa Italo, Urgesi Riccardo, Vassallo Roberto, Violi Alessandra, Zampaletta Costantino, Zilli Maurizio, Zullo Angelo

DOI: 10.15403/jgld.2014.1121.281

ISSN: 1842-1121

BACKGROUND AND 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.

agreement diverticular disease of the colon endoscopic classification