Pilot Validation Study: Canadian Global Rating Scale for Colonoscopy Services. (20th October 2016)

• Record Type: Journal Article
• Authors: Carpentier, Stéphanie; Sharara, Nour; Barkun, Alan N.; El Ouali, Sara; Martel, Myriam; Sewitch, Maida J.
• Other Names: Nguyen Geoffrey C. Academic Editor.
• Is Part Of: Canadian journal of gastroenterology & hepatology. Volume 2016(2016)
• Publication Date: 2016-10-20
• Subjects: Digestive organs -- Diseases -- Periodicals; Gastroenterology -- Periodicals; Digestive organs -- Diseases; Gastroenterology; Canada; Digestive System Diseases -- Periodicals; Gastroenterology -- Periodicals; Periodicals; Electronic journals; Fulltext; Internet Resources; Periodicals; 616.3
• DOI: 10.1155/2016/6982739
• Languages: English
• ISSNs: 2291-2789

Abstract

Abstract : Background . The United Kingdom Global Rating Scale (GRS-UK) measures unit-level quality metrics processes in digestive endoscopy. We evaluated the psychometric properties of its Canadian version (GRS-C), endorsed by the Canadian Association of Gastroenterology (CAG). Methods . Prospective data collection at three Canadian endoscopy units assessed GRS-C validity, reliability, and responsiveness to change according to responses provided by physicians, endoscopy nurses, and administrative personnel. These responses were compared to national CAG endoscopic quality guidelines and GRS-UK statements. Results . Most respondents identified the overarching theme each GRS-C item targeted, confirming face validity. Content validity was suggested as 18 out of 23 key CAG endoscopic quality indicators (78%, 95% CI: 56–93%) were addressed in the GRS-C; statements not included pertained to educational programs and competency monitoring. Concordance ranged 75–100% comparing GRS-C and GRS-UK ratings. Test-retest reliability Kappa scores ranged 0.60–0.83, while responsiveness to change scores at 6 months after intervention implementations were greater (P < 0.001 ) in two out of three units. Conclusion . The GRS-C exhibits satisfactory metrics, supporting its use in a national quality initiative aimed at improving processes in endoscopy units. Data collection from more units and linking to actual patient outcomes are required to ensure that GRS-C implementation facilitates improved patient care.