Children with Juvenile Idiopathic Arthritis (JIA) have swelling or pain ranging from very mild limited joint involvement to severe systemic disease associated with high fever, rash and lymph node enlargement. There are several types of JIA. The three major subtypes include:
- Systemic JIA
- Polyarticular JIA
- Oligoarticular JIA
Sometimes these diseases may be called “juvenile rheumatoid arthritis” or “JRA. Or they might be called "juvenile arthritis" or "juvenile chronic arthritis."
Juvenile idiopathic arthritis (JIA) is the most common type of arthritis in children. It is a chronic disease. This means it will probably last a long time. About 1 in 1,000 children have JIA. The number of new cases per year is estimated at 9 per 100,000 population. These numbers tell us that about 40-50 children in the Cincinnati area will be diagnosed with JIA each year.