The "DICA" endoscopic classification for diverticular disease of the colon shows a significant interobserver agreement among community endoscopists
Antonio Tursi, Giovanni Brandimarte, Francesco di Mario, Gerardo Nardone, Carmelo Scarpignato, Marcello Picchio, Walter Elisei, DICA Italian Group, Leonardo Allegretta, Maria Laura Annunziata, Marco Astegiano, Fabio Baldi, Gabrio Bassotti, Maria Antonia Bianco, Ginevra Cambie, Erminio Capezzuto, Alessandro Caroli, Claudio Cassieri, Antonio Salvatore Cicu, Enrico Ciliberto, Raffaele Colucci, Rita Conigliano, Alberto Damiani, Patrizia De Colibus, Antonio De Medici, Giovanni De Pretis, Giuseppe Del Favero, Nicola Della Valle, Luigi Di Cesare, Roberto Faggiano, Stefania Febbraro, Luciano Ferrini, Serafina Fiorella, Giacomo Forti, Marilisa Franceschi, Andrea Frunzio, Bastianello Germana, Gian Marco Giorgetti, Maurizio Giovannone, Maria Giovanna Graziani, Maria Antonia Lai, Giovanni Latella, Piera Giuseppina Lecca, Daniele Lisi, Loris Ricardo Lopetuso, Giovanni Maconi, Enzo Domenico Mandelli, Riccardo Marmo, Attilio Maurano, Lorella Pallotta, Alfredo Papa, Francesca Parmeggiani, Antonio Penna, Flavia Pigo, Stefano Pontone, Giuseppe Pranzo, Cristina Ricciardelli, Giovanni Luca Rizzo, Stefano Rodino, Edoardo Savarino, Giuseppe Scaccianoce, Franco Scaldaferri, Luigi Schiffino, Chiara Semeraro, Italo Stroppa, Riccardo Urgesi, Roberto Vassallo, Alessandra Violi, Costantino Zampaletta, Maurizio Zilli, Angelo Zullo, Antonio Tursi, Giovanni Brandimarte, Francesco di Mario, Gerardo Nardone, Carmelo Scarpignato, Marcello Picchio, Walter Elisei, DICA Italian Group, Leonardo Allegretta, Maria Laura Annunziata, Marco Astegiano, Fabio Baldi, Gabrio Bassotti, Maria Antonia Bianco, Ginevra Cambie, Erminio Capezzuto, Alessandro Caroli, Claudio Cassieri, Antonio Salvatore Cicu, Enrico Ciliberto, Raffaele Colucci, Rita Conigliano, Alberto Damiani, Patrizia De Colibus, Antonio De Medici, Giovanni De Pretis, Giuseppe Del Favero, Nicola Della Valle, Luigi Di Cesare, Roberto Faggiano, Stefania Febbraro, Luciano Ferrini, Serafina Fiorella, Giacomo Forti, Marilisa Franceschi, Andrea Frunzio, Bastianello Germana, Gian Marco Giorgetti, Maurizio Giovannone, Maria Giovanna Graziani, Maria Antonia Lai, Giovanni Latella, Piera Giuseppina Lecca, Daniele Lisi, Loris Ricardo Lopetuso, Giovanni Maconi, Enzo Domenico Mandelli, Riccardo Marmo, Attilio Maurano, Lorella Pallotta, Alfredo Papa, Francesca Parmeggiani, Antonio Penna, Flavia Pigo, Stefano Pontone, Giuseppe Pranzo, Cristina Ricciardelli, Giovanni Luca Rizzo, Stefano Rodino, Edoardo Savarino, Giuseppe Scaccianoce, Franco Scaldaferri, Luigi Schiffino, Chiara Semeraro, Italo Stroppa, Riccardo Urgesi, Roberto Vassallo, Alessandra Violi, Costantino Zampaletta, Maurizio Zilli, Angelo Zullo
Abstract
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.
Source: PubMed