Concordance of four methods of disability assessment using performance in the home as the criterion method
Article first published online: 7 OCT 2003
Copyright © 2003 by the American College of Rheumatology
Arthritis Care & Research
Volume 49, Issue 5, pages 640–647, 15 October 2003
How to Cite
Rogers, J. C., Holm, M. B., Beach, S., Schulz, R., Cipriani, J., Fox, A. and Starz, T. W. (2003), Concordance of four methods of disability assessment using performance in the home as the criterion method. Arthritis & Rheumatism, 49: 640–647. doi: 10.1002/art.11379
- Issue published online: 7 OCT 2003
- Article first published online: 7 OCT 2003
- Manuscript Accepted: 21 OCT 2002
- Manuscript Received: 14 APR 2002
- National Institute on Aging
- Agency for Healthcare Policy and Quality. Grant Number: AG08947
- Functional assessment;
- Disability evaluation;
To determine the concordance of 4 methods of disability assessment with the criterion method. Performance testing in the home was selected as the criterion.
The task performance of 57 community-dwelling older women (≥70 years) with knee osteoarthritis was examined through self report, proxy report, clinical judgment based on impairment measures, performance testing in an occupational therapy clinic, and performance testing in participants' homes. The 26 tasks represented 4 domains of daily living activities: 5 functional mobility, 3 personal care, 14 cognitively oriented instrumental activities of daily living (IADL), and 4 physically oriented IADL.
In general, self reports and proxy reports had the highest concordance with in-home performance test results. Nonetheless, even for these methods, depending on task domain, the rate of discordance ranged from 31% to 54%, being least in personal care and greatest in the physically oriented IADL.
Disability estimates based on self reports, proxy reports, clinical judgments, and hospital performance-based assessments are not interchangeable with in-home task performance.