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Variations in reporting doctor-diagnosed osteoarthritis reflect contemporaneous severity of symptoms and functioning.
MedLine Citation:
PMID:  23281307     Owner:  NLM     Status:  Publisher    
Abstract/OtherAbstract:
OBJECTIVE: Osteoarthritis is acknowledged as an enduring condition, however, in epidemiological studies, half the participants who report having osteoarthritis at one time may report not having it at a subsequent time. The aim of this study was to examine whether variations in reporting doctor-diagnosed osteoarthritis reflected concurrent fluctuations in indicators of disease severity in mid-age women. METHODS: Data were from 7,623 participants (aged 50-55 years in 2001) in the Australian Longitudinal Study on Women's Health. Based on self-report of doctor-diagnosed osteoarthritis at surveys in 2001, 2004, 2007 and 2010, the participants were classified according to pattern of osteoarthritis reporting (e.g. 0-0-0-0='no' on all surveys, 0-1-0-1='no-yes-no-yes'). Indicators of disease severity included frequency of joint pain/stiffness, use of anti-inflammatory medications, and physical functioning assessed with the SF-36. Bar graphs were used to show concurrent variations in osteoarthritis and markers, and associations were examined using log-linear models. RESULTS: In this sample, 46% reported having osteoarthritis on at least one survey, with half these cases reporting not having osteoarthritis at a later survey. Odds of reporting joint pain/stiffness often (odds ratio (OR) 7.26, 95% confidence interval (CI) 7.06-7.47) and using anti-inflammatory drugs (OR 4.44, CI 2.37-8.33) were higher, and physical functioning scores were lower (OR 3.75, CI 3.56-3.95) when participants reported having osteoarthritis. CONCLUSION: Variations in reporting osteoarthritis coincided with episodic fluctuations in symptoms and functioning. Inconsistent reporting of osteoarthritis could therefore reflect presence of symptoms rather than reporting error and should be considered in longitudinal studies. © 2012 by the American College of Rheumatology.
Authors:
Geeske Peeters; Lynne Parkinson; Elizabeth Badley; Mark Jones; Wendy J Brown; Annette J Dobson; Gita D Mishra
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Publication Detail:
Type:  JOURNAL ARTICLE     Date:  2012-12-21
Journal Detail:
Title:  Arthritis care & research     Volume:  -     ISSN:  2151-4658     ISO Abbreviation:  Arthritis Care Res (Hoboken)     Publication Date:  2012 Dec 
Date Detail:
Created Date:  2013-1-2     Completed Date:  -     Revised Date:  -    
Medline Journal Info:
Nlm Unique ID:  101518086     Medline TA:  Arthritis Care Res (Hoboken)     Country:  -    
Other Details:
Languages:  ENG     Pagination:  -     Citation Subset:  -    
Copyright Information:
Copyright © 2012 by the American College of Rheumatology.
Affiliation:
The University of Queensland, School of Population Health, Brisbane, Queensland, Australia; The University of Queensland, School of Human Movement Studies, Brisbane, Queensland, Australia. g.peeters@uq.edu.au.
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