title: Pilot Validation Study: Canadian Global Rating Scale for Colonoscopy Services.
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.
authors.affiliation: Division of Gastroenterology, McGill University and McGill University Health Center, Montreal, QC, Canada.
authors.forename: Stéphanie
authors.identifier: 0000-0002-0217-1925
authors.initials: S
authors.lastname: Carpentier
authors.affiliation: Division of Gastroenterology, McGill University and McGill University Health Center, Montreal, QC, Canada.
authors.forename: Nour
authors.identifier: 0000-0002-0647-7622
authors.initials: N
authors.lastname: Sharara
authors.affiliation: Division of Gastroenterology, McGill University and McGill University Health Center, Montreal, QC, Canada; Division of Clinical Epidemiology, Research Institute of the McGill University Health Centre, Montreal, QC, Canada.
authors.forename: Alan N
authors.identifier: 0000-0002-1798-5526
authors.initials: AN
authors.lastname: Barkun
authors.affiliation: Division of Gastroenterology, McGill University and McGill University Health Center, Montreal, QC, Canada.
authors.forename: Sara
authors.initials: S
authors.lastname: El Ouali
authors.affiliation: Division of Gastroenterology, McGill University and McGill University Health Center, Montreal, QC, Canada.
authors.forename: Myriam
authors.identifier: 0000-0001-8317-613X
authors.initials: M
authors.lastname: Martel
authors.affiliation: Division of Gastroenterology, McGill University and McGill University Health Center, Montreal, QC, Canada; Division of Clinical Epidemiology, Research Institute of the McGill University Health Centre, Montreal, QC, Canada.
authors.forename: Maida J
authors.identifier: 0000-0001-9630-6204
authors.initials: MJ
authors.lastname: Sewitch
mesh_terms: D002170:Canada; D002983:Clinical Competence; D003113:Colonoscopy / Q000592:standards*; D005762:Gastroenterology / Q000592:standards*; D006801:Humans; D010865:Pilot Projects; D011446:Prospective Studies; D019984:Quality Indicators, Health Care / Q000592:standards*; D015203:Reproducibility of Results; D011795:Surveys and Questionnaires / Q000592:standards*