Arthritis affects approximately one child in every thousand in a given year. Fortunately, most of these cases are mild. However, approximately one child in every 10,000 will have more severe arthritis that doesn't just go away. There are three important issues for every child or adolescent with arthritis:
JRA is the most common type of arthritis. There are three main forms of JRA - pauciarticular, polyarticular, and systemic onset, which differ in the way that the arthritis first manifests itself in the patient and the disease progression.
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