Development and preliminary evaluation of the OsteoArthritis Questionnaire (OA-Quest): a psychometric study Busija, L., Buchbinder, R. and Osborne, R.H. 2016, Development and preliminary evaluation of the OsteoArthritis Questionnaire (OA-Quest): a psychometric study, Osteoarthritis and cartilage, vol. 24, no. 8, pp. 1357-1366, doi: 10.1016/j.joca.2016.03.014. Attached Files Name Description MIMEType Size Downloads Title Development and preliminary evaluation of the OsteoArthritis Questionnaire (OA-Quest): a psychometric study Author(s) Busija, L. Buchbinder, R. Osborne, R.H. Journal name Osteoarthritis and cartilage Volume number 24 Issue number 8 Start page 1357 End page 1366 Total pages 10 Publisher Elsevier Place of publication Amsterdam, The Netherlands Publication date 2016-08 ISSN 1063-4584 1522-9653 Keyword(s) patient-reported outcome measures osteoarthritis exploratory factor analysis confirmatory factor analysis Rasch modelling DETERMINANTS Summary OBJECTIVE: This study reports the development of the OsteoArthritis Questionnaire (OA-Quest) - a new measure designed to comprehensively capture the potentially modifiable burden of osteoarthritis. DESIGN: Item development was guided by the a priori conceptual framework of the Personal Burden of Osteoarthritis (PBO) which captures 8 dimensions of osteoarthritis burden (Physical distress, Fatigue, Physical limitations, Psychosocial distress, Physical de-conditioning, Financial hardship, Sleep disturbances, Lost productivity). One hundred and twenty three candidate items were pretested in a clinical sample of 18 osteoarthritis patients. The measurement properties of the OA-Quest were assessed with exploratory factor analysis (EFA), Rasch modelling, and confirmatory factor analysis (CFA) in a community-based sample (n = 792). RESULTS: EFA replicated 7 of the 8 PBO domains. An exception was PBO Fatigue domain, with items merging into the Physical distress subscale in the OA-Quest. Following item analysis, a 42-item 7-subscale questionnaire was constructed, measuring Physical distress (seven items, Cronbach's α = 0.93), Physical limitations (11 items, α = 0.95), Psychosocial distress (seven items, α = 0.93), Physical de-conditioning (four items, α = 0.87), Financial hardship (four items, α = 0.93), Sleep disturbances (five items, α = 0.96), and Lost productivity (four items α = 0.90). A highly restricted 7-factor CFA model had excellent fit with the data (χ(2)(113) = 316.36, P < 0.001; chi-square/degrees of freedom = 2.8; comparative fit index [CFI] = 0.97; root mean square error of approximation [RMSEA] = 0.07), supporting construct validity of the new measure. CONCLUSIONS: The OA-Quest is a new measure of osteoarthritis burden that is founded on a comprehensive conceptual model. It has strong evidence of construct validity and provides reliable measurement across a broad range of osteoarthritis burden. Language eng DOI 10.1016/j.joca.2016.03.014 Field of Research 111799 Public Health and Health Services not elsewhere classified 1103 Clinical Sciences Socio Economic Objective 920499 Public Health (excl. Specific Population Health) not elsewhere classified HERDC Research category C1 Refereed article in a scholarly journal ERA Research output type C Journal article Copyright notice ©2016, Osteoarthritis Research Society International Free to Read? Yes Persistent URL http://hdl.handle.net/10536/DRO/DU:30085249 Document type: Journal Article Collections: Faculty of Health School of Health and Social Development Population Health Open Access Collection Related Links Link Description Link to full-text (open access)   Connect to published version Go to link with your DU access privileges     Unless expressly stated otherwise, the copyright for items in DRO is owned by the author, with all rights reserved. Every reasonable effort has been made to ensure that permission has been obtained for items included in DRO. If you believe that your rights have been infringed by this repository, please contact drosupport@deakin.edu.au. Versions Version Filter Type Tue, 09 Aug 2016, 05:00:43 EST Tue, 09 Aug 2016, 06:09:07 EST Thu, 18 Aug 2016, 13:27:27 EST Thu, 18 Aug 2016, 13:35:12 EST Thu, 18 Aug 2016, 13:45:23 EST Mon, 10 Oct 2016, 10:51:24 EST Mon, 10 Oct 2016, 10:54:17 EST Mon, 10 Oct 2016, 10:55:06 EST Mon, 11 Nov 2019, 06:40:56 EST Filtered Full Citation counts:   Cited 5 times in TR Web of Science Cited 7 times in Scopus Search Google Scholar Access Statistics: 405 Abstract Views, 2 File Downloads  -  Detailed Statistics Created: Thu, 18 Aug 2016, 13:27:25 EST

Every reasonable effort has been made to ensure that permission has been obtained for items included in DRO. If you believe that your rights have been infringed by this repository, please contact drosupport@deakin.edu.au.