Cited by 77Health Systems, Economic Evaluations, Quality of LifeRheumatoid Arthritis Research and TherapiesMusculoskeletal pain and rehabilitation

The clinimetric properties of the World Health Organization Disability Assessment Schedule II in early inflammatory arthritis

Baron, Murray, Schieir, Orit, Hudson, Marie, Steele, Russell, Kolahi, Sousan, Berkson, Laeora, Couture, Francois, Fitzcharles, M. A. +11 more·2008·Arthritis Care & Research

Abstract

OBJECTIVE: To assess the clinimetric properties of a new health-related quality of life (HRQOL) instrument, the World Health Organization Disability Assessment Schedule II (WHODAS II), in patients with early inflammatory arthritis. METHODS: Internal consistency as well as criterion, construct, and discriminative validity of the WHODAS II were assessed in 172 patients with early inflammatory arthritis who completed the WHODAS II, the Medical Outcomes Study Short Form 36 (SF-36), and other measures of disease severity, functioning, pain, depression, and resource use. Test-retest reliability of the WHODAS II was assessed by having a subset of 20 patients complete the WHODAS II a second time, 1 week after the first assessment. RESULTS: The WHODAS II had high internal consistency (Cronbach's alpha = 0.96 for patients working or in school and 0.93 for patients not working or in school). Test-retest intraclass correlation coefficients of the WHODAS II total score and subscales ranged from 0.82-0.96. The WHODAS II total score was strongly correlated with the SF-36 physical component score (Kendall's tau-b 0.51, P < 0.001) and moderately correlated with the SF-36 mental component score (tau-b 0.43, P < 0.001). WHODAS II correlations with disease outcomes ranged from Kendall's tau-b 0.15-0.55. The WHODAS II significantly differentiated between every aspect of disease severity assessed with the exception of measures of health resource use. CONCLUSION: The WHODAS II is a valid and reliable measure of HRQOL in cross-sectional studies of patients with early inflammatory arthritis. Research is still required to investigate potential item redundancy and determine its usefulness in longitudinal studies.

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Crossref · 10.1002/art.23314

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Authors
Baron, M., Schieir, O., Hudson, M., Steele, R., Kolahi, S., Berkson, L., Couture, F., Fitzcharles, M. A., Gagné, M., Garfield, B., Gutkowski, A., Kang, H., Kapusta, M., Ligier, S., Mathieu, J., Ménard, H., Starr, M., Stein, M., & Zummer, M.
Affiliations
  • McGill University (CA)
  • Tabriz University of Medical Sciences (IR)
  • Hôpital Maisonneuve-Rosemont (CA)
Venue
Arthritis Care & Research
Publisher
Wiley
Published
2008-02-29
Volume
59
Issue
3
Pages
382-390
ISSN
  • 0893-7524 (ISSN-L)
  • 1529-0123
OpenAlex
W2063296091
Cited by
77
References
79
Citations by year
2026: 1 · 2025: 2 · 2024: 2 · 2023: 2 · 2022: 4 · 2021: 6 · 2020: 6 · 2019: 4 · 2018: 3 · 2017: 6 · 2016: 4 · 2015: 3 · 2014: 6 · 2013: 5 · 2012: 2
FWCI
16.19
Type
journal article
Language
en
Open access
closed
Locations
  • Arthritis Care & Research (publishedVersion)
  • PubMed (publishedVersion)
Topics
  • Social Sciences › Economics, Econometrics and Finance › Economics and Econometrics › Health Systems, Economic Evaluations, Quality of Life
  • Health Sciences › Medicine › Rheumatology › Rheumatoid Arthritis Research and Therapies
  • Health Sciences › Medicine › Pharmacology › Musculoskeletal pain and rehabilitation
Keywords
WHODAS II, early inflammatory arthritis, health-related quality of life, clinimetric properties, test-retest reliability, internal consistency, construct validity, criterion validity, SF-36, disease severity, disability assessment
MeSH terms
Activities of Daily Living, Adult, Aged, Arthritis, Rheumatoid, Cross-Sectional Studies, Disability Evaluation, Female, Humans, Male, Middle Aged, Quality of Life, Severity of Illness Index, World Health Organization

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