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Rheum Dis Clin North Am. 2001 May;27(2):269-81.

The epidemiology of rheumatoid arthritis.

Author information

  • 1Departments of Health Sciences Research and Internal Medicine, Division of Rheumatology, Mayo Foundation, Rochester, Minnesota, USA. gabriel.sherine@mayo.edu

Abstract

Studies of the descriptive epidemiology of RA indicate a population prevalence of 0.5% to 1% and a highly variable annual incidence (12-1200 per 100,000 population) depending on gender, race/ethnicity, and calendar year. Secular trends in RA incidence over time have been shown in several studies, supporting the hypothesis of a host-environment interaction. People with RA have a significantly increased risk of death compared with age- and sex-matched controls without RA from the same community. The determinants of this excess mortality remain unclear; however, reports suggest increased risk from gastrointestinal, respiratory, cardiovascular, infectious, and hematologic diseases among RA patients compared with controls. Despite extensive epidemiologic research, the etiology of RA is unknown. Several risk factors have been suggested as important in the development or progression of RA. These include genetics, infectious agents, oral contraceptives, smoking, and formal education. Epidemiologic research is an essential contributor to our understanding of RA.

PMID:
11396092
[PubMed - indexed for MEDLINE]
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