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Rheumatoid arthritis: epidemiology

Posted: 03 Dec 2012, 10:49
by meme nony
Rheumatoid arthritis: epidemiology

Epidemiology
•peak onset = 30-50 years, although occurs in all age groups
•F:M ratio = 3:1
•prevalence = 1%
•some ethnic differences e.g. high in Native Americans
•associated with HLA-DR4 (especially Felty's syndrome)