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Prevalence and Burden of Osteoarthritis: Results from a Population Survey in Norway MARGRETH GROTLE, KAARE BIRGER HAGEN, BAARD NATVIG, FREDRIK A. DAHL, and TORE KRISTIAN KVIEN
ABSTRACT. Methods. In 2004, postal questionnaires were sent to all people in a local community born in 1928-30, 1938-40, 1948-50, 1958-60, 1968-70, and 1978-80. A total of 3266 (56.7%) responded. The prevalence of hip, knee, and/or hand OA was obtained by the item "Have you ever been diagnosed with osteoarthritis in hip/knee/hand by a medical doctor or by x-ray?". Results. The overall prevalence of OA was 12.8% (95% CI 11.7-14.0), being significantly higher among women [14.7% (95% CI 13.1-16.4)] than men [10.5% (95% CI 9.0-12.1)]. The prevalence for hip OA was 5.5% (95% CI 4.7-6.3), knee OA 7.1% (95% CI 6.3-8.0), and for hand OA 4.3% (95% CI 3.6-5.0). OA was significantly (all p < 0.001) associated with higher age, less than 12 years of education, being out of work, pain duration > 1 year, pain in several body sites, sick leave for more than 8 weeks, emotional distress, poor sleeping quality, fatigue, and with frequent use of healthcare providers in primary health care. A significant (p = 0.001) dose-response relationship between increasing body mass index and OA was found. Conclusion. The overall prevalence of OA was 12.8% and higher prevalence was found among women and older people, people with less than 12 years of education, those out of work, and those overweight. OA was associated with pain, disability, and poor health status, and frequent use of healthcare providers. (J Rheumatol First Release Feb 15 2008) Key Indexing Terms:
PREVALENCE
From the National Resource Centre for Rehabilitation in Rheumatology, Department of Rheumatology, Diakonhjemmet Hospital, Oslo, Norway. Supported by the University of Oslo and the Trygve Gythfeldt Fund. M. Grotle, PhD; K.B. Hagen, PhD, National Resource Centre for Rehabilitation in Rheumatology; B. Natvig, PhD, MD, Institute of General Practice and Community Medicine, University of Oslo; F.A. Dahl, Medical Statistician, Helse Øst Health Services Research Centre, Akershus University Hospital, Lørenskog; T.K. Kvien, Professor, National Resource Centre for Rehabilitation in Rheumatology and Faculty of Medicine, University of Oslo, Oslo, Norway. Address reprint requests to Dr. M. Grotle, National Resource Centre for Rehabilitation in Rheumatology, Diakonhjemmet Hospital, Oslo, PO Box 23 Vinderen, 0319 Oslo, Norway. E-mail: margreth.grotle@medisin.uio.no Accepted for publication October 16, 2007.
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