MP54-08 THE GERMAN LINGUISTIC VALIDATION OF THE WISONSIN STONE QUALITY OF LIFE QUESTIONNAIRE (WISQOL)

Abstract

You have accessJournal of UrologyStone Disease: Epidemiology & Evaluation II (MP54)1 Sep 2021MP54-08 THE GERMAN LINGUISTIC VALIDATION OF THE WISONSIN STONE QUALITY OF LIFE QUESTIONNAIRE (WISQOL) Martin Gottstein, Manolis Pratsinis, Sabine Güsewell, Patrick Betschart, Dominik Abt, and Thomas Knoll Martin GottsteinMartin Gottstein More articles by this author , Manolis PratsinisManolis Pratsinis More articles by this author , Sabine GüsewellSabine Güsewell More articles by this author , Patrick BetschartPatrick Betschart More articles by this author , Dominik AbtDominik Abt More articles by this author , and Thomas KnollThomas Knoll More articles by this author View All Author Informationhttps://doi.org/10.1097/JU.0000000000002084.08AboutPDF ToolsAdd to favoritesDownload CitationsTrack CitationsPermissionsReprints ShareFacebookLinked InTwitterEmail Abstract INTRODUCTION AND OBJECTIVE: WisQoL (Wisconsin Stone Quality of Life questionnaire) is a disease specific, health related quality of life measure designed for patients who form kidney stones. The goal of this study was to develop and validate a German version of WisQoL. METHODS: The German version of the WisQoL was developed following a standardized multistep process. Patients were recruited prior to stone treatment, and completed the questionnaire as well as the SF-36v2 (36-Item Short Form Health Survey). This was repeated 1, 3 and 6 months after stone surgery. Scores of the 28 questionnaire items were summarized into sum scores for four domains and a total score. The psychometric properties of the questionnaire were statistically analyzed. RESULTS: The German WisQoL demonstrated excellent internal consistency (Cronbach’s α > 0.90 for all domains at all visits). All inter-domain associations were positive. The test-retest reliability for patients with unchanged self-reported health state was considered satisfactory (Spearman’s rho for total score 0.70 [95% CI 0.55 to – 0.80]). The German WisQoL demonstrated good convergent validity with the validated SF-36v2 (correlation between corresponding items 0.44 to 0.64). All domain scores showed significant sensitivity to change induced by stone treatment (p≤0.05). Total WisQoL scores generally improved during the first three months following stone treatment, and remained stable thereafter. CONCLUSIONS: The German WisQoL proved to be a reliable and robust instrument to evaluate health related quality of life measures of kidney stone patients in the clinical setting. It is expected to be of use for further research in patients with kidney stones. Source of Funding: Study costs were covered by unspecific internal research funds of the two recruiting study centers © 2021 by American Urological Association Education and Research, Inc.FiguresReferencesRelatedDetails Volume 206Issue Supplement 3September 2021Page: e951-e952 Advertisement Copyright & Permissions© 2021 by American Urological Association Education and Research, Inc.MetricsAuthor Information Martin Gottstein More articles by this author Manolis Pratsinis More articles by this author Sabine Güsewell More articles by this author Patrick Betschart More articles by this author Dominik Abt More articles by this author Thomas Knoll More articles by this author Expand All Advertisement Loading ...