Evaluating quality of life in hip and knee replacement: psychometric properties of the World Health Organization Quality of Life short version instrument

Ackerman, Ilana, Graves, Stephen, Bennell, Kim and Osborne, Richard 2006, Evaluating quality of life in hip and knee replacement: psychometric properties of the World Health Organization Quality of Life short version instrument, Arthritis care and research, vol. 55, no. 4, pp. 583-590.

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Title Evaluating quality of life in hip and knee replacement: psychometric properties of the World Health Organization Quality of Life short version instrument
Author(s) Ackerman, Ilana
Graves, Stephen
Bennell, Kim
Osborne, Richard
Journal name Arthritis care and research
Volume number 55
Issue number 4
Start page 583
End page 590
Publisher John Wiley and Sons, Inc.
Place of publication Malden, Mass.
Publication date 2006-08-15
ISSN 0893-7524
2151-4658
Keyword(s) joint replacement
quality of life
outcomes assessment
Summary Objective: To evaluate the psychometric properties of the World Health Organization Quality of Life short version instrument (WHOQOL-BREF), and to determine its responsiveness in assessing early outcome after total hip or knee replacement surgery.

Methods:
At baseline (entry to an orthopedic waiting list), 279 participants completed the WHOQOL-BREF instrument, Western Ontario and McMaster Universities Osteoarthritis Index (WOMAC), Assessment of Quality of Life (AQOL) instrument, Kessler Psychological Distress (K10) scale, and the modified Health Assessment Questionnaire (MHAQ). A total of 74 patients completed reassessments 3 months after surgery.

Results: The WHOQOL-BREF demonstrated acceptable internal consistency for all domains (Cronbach's = 0.76-0.84) and moderate concurrent validity for the physical and psychological domains (r = 0.67 for physical versus AQOL; r = -0.71 for psychological versus K10). Minimal ceiling or floor effects were identified at baseline or 3 months, except for the social relationships domain. The disease-specific WOMAC subscales were most responsive to change (relative efficiency [RE] 0.66-1.00). Apart from social relationships, all WHOQOL-BREF scores improved significantly after surgery. The physical domain was more responsive than the AQOL (RE 0.50 versus 0.42) and was similar to the MHAQ (RE 0.55 for MHAQ). The responsiveness of the psychological domain was similar to that of the K10 scale (RE 0.11 versus 0.08).

Conclusion: The WHOQOL-BREF has good psychometric properties for use in persons with severe joint disease, and by providing complementary information, it offers clinicians and researchers an additional tool for comprehensively assessing quality of life in this patient group.
Language eng
Field of Research 110314 Orthopaedics
Socio Economic Objective 970111 Expanding Knowledge in the Medical and Health Sciences
HERDC Research category C1.1 Refereed article in a scholarly journal
Copyright notice ©2006, American College of Rheumatology
Persistent URL http://hdl.handle.net/10536/DRO/DU:30018636

Document type: Journal Article
Collection: School of Health and Social Development
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Created: Thu, 10 Sep 2009, 12:22:43 EST by Lorraine Driscoll

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