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Division of Rheumatology

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Juvenile rheumatoid arthritis

Definition:

Juvenile rheumatoid arthritis (JRA) is a general term for the most common types of arthritis in children. It is a long-term (chronic) disease resulting in joint pain and inflammation, which may lead to joint damage.

Alternative Names:

Juvenile chronic polyarthritis; JRA; Still's disease; Juvenile idiopathic arthritis  

Causes, incidence, and risk factors:

JRA occurs in 50-100 per 100,000 children in the United States. It usually occurs before age 16.

JRA is divided into several categories:

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