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dc.contributor.authorGandek, Barbara
dc.contributor.authorRoos, E. M.
dc.contributor.authorFranklin, Patricia D
dc.contributor.authorWare, John E. Jr.
dc.date2022-08-11T08:10:35.000
dc.date.accessioned2022-08-23T17:13:47Z
dc.date.available2022-08-23T17:13:47Z
dc.date.issued2019-05-01
dc.date.submitted2019-07-17
dc.identifier.citation<p>Osteoarthritis Cartilage. 2019 May;27(5):762-770. doi: 10.1016/j.joca.2019.01.011. Epub 2019 Feb 1. <a href="https://doi.org/10.1016/j.joca.2019.01.011">Link to article on publisher's site</a></p>
dc.identifier.issn1063-4584 (Linking)
dc.identifier.doi10.1016/j.joca.2019.01.011
dc.identifier.pmid30716536
dc.identifier.urihttp://hdl.handle.net/20.500.14038/46809
dc.description.abstractOBJECTIVE: To evaluate reliability, validity and responsiveness of KOOS-12, a 12-item short form of the 42-item Knee injury and Osteoarthritis Outcome Score (KOOS) that provides Pain, Function and Quality of Life (QOL) scale scores and a summary knee impact score. DESIGN: Data from 1,392 knee osteoarthritis (OA) patients from the FORCE-TJR research cohort who completed KOOS before and 6 and 12 months after total knee replacement (TKR) were analyzed. KOOS-12 includes a pain frequency item and three items measuring pain during increasingly difficult (sitting/lying, walking, stairs) activities; function items about standing, rising from sitting, getting in/out of a car, and twisting/pivoting; and the 4-item KOOS QOL scale. Percent computable scale scores, floor and ceiling effects, internal consistency reliability, validity (scale correlations, tests of known groups validity using one-way analysis of variance (ANOVA)) and responsiveness (effect sizes, standardized response means) were compared for the KOOS-12, full-length KOOS, KOOS-PS and KOOS, JR. RESULTS: Internal consistency reliability was above 0.70 for all KOOS-12 scales and > /=0.90 for the KOOS-12 Summary score. Validity and responsiveness of KOOS-12 Pain, Function and QOL scales was satisfactory and reached similar conclusions as comparable full-length KOOS scales. The KOOS-12 Summary score was most responsive in discriminating between groups who differed in global ratings of post-TKR change in physical capabilities and had the highest effect sizes and standardized response means. CONCLUSIONS: KOOS-12 was a reliable and valid alternative to KOOS in TKR patients with moderate to severe OA and provided three domain-specific and summary knee impact scores with substantially reduced respondent burden.
dc.language.isoen_US
dc.relation<p><a href="http://www.ncbi.nlm.nih.gov/entrez/query.fcgi?db=pubmed&cmd=Retrieve&list_uids=30716536&dopt=Abstract">Link to Article in PubMed</a></p>
dc.relation.urlhttps://doi.org/10.1016/j.joca.2019.01.011
dc.subjectKOOS
dc.subjectKnee
dc.subjectOsteoarthritis
dc.subjectPatient-reported outcome measures
dc.subjectPsychometrics
dc.subjectEpidemiology
dc.subjectHealth Services Administration
dc.subjectHealth Services Research
dc.subjectMusculoskeletal Diseases
dc.subjectMusculoskeletal, Neural, and Ocular Physiology
dc.subjectPathological Conditions, Signs and Symptoms
dc.titleA 12-item short form of the Knee injury and Osteoarthritis Outcome Score (KOOS-12): tests of reliability, validity and responsiveness
dc.typeJournal Article
dc.source.journaltitleOsteoarthritis and cartilage
dc.source.volume27
dc.source.issue5
dc.identifier.legacycoverpagehttps://escholarship.umassmed.edu/qhs_pp/1278
dc.identifier.contextkey14941815
html.description.abstract<p>OBJECTIVE: To evaluate reliability, validity and responsiveness of KOOS-12, a 12-item short form of the 42-item Knee injury and Osteoarthritis Outcome Score (KOOS) that provides Pain, Function and Quality of Life (QOL) scale scores and a summary knee impact score.</p> <p>DESIGN: Data from 1,392 knee osteoarthritis (OA) patients from the FORCE-TJR research cohort who completed KOOS before and 6 and 12 months after total knee replacement (TKR) were analyzed. KOOS-12 includes a pain frequency item and three items measuring pain during increasingly difficult (sitting/lying, walking, stairs) activities; function items about standing, rising from sitting, getting in/out of a car, and twisting/pivoting; and the 4-item KOOS QOL scale. Percent computable scale scores, floor and ceiling effects, internal consistency reliability, validity (scale correlations, tests of known groups validity using one-way analysis of variance (ANOVA)) and responsiveness (effect sizes, standardized response means) were compared for the KOOS-12, full-length KOOS, KOOS-PS and KOOS, JR.</p> <p>RESULTS: Internal consistency reliability was above 0.70 for all KOOS-12 scales and > /=0.90 for the KOOS-12 Summary score. Validity and responsiveness of KOOS-12 Pain, Function and QOL scales was satisfactory and reached similar conclusions as comparable full-length KOOS scales. The KOOS-12 Summary score was most responsive in discriminating between groups who differed in global ratings of post-TKR change in physical capabilities and had the highest effect sizes and standardized response means.</p> <p>CONCLUSIONS: KOOS-12 was a reliable and valid alternative to KOOS in TKR patients with moderate to severe OA and provided three domain-specific and summary knee impact scores with substantially reduced respondent burden.</p>
dc.identifier.submissionpathqhs_pp/1278
dc.contributor.departmentDepartment of Population and Quantitative Health Sciences
dc.source.pages762-770


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