Home > Patients & Visitors > Health Library > Classification of Juvenile Arthritis
There used to be two ways to classify juvenile
arthritis. There was the European classification of juvenile chronic arthritis (JCA). And there was the American classification of
juvenile rheumatoid arthritis (JRA). Each system used different categories. This made it hard to use European and American
research findings and treatment guidelines together.
improve research and treatment, the International League of
Associations for Rheumatology (ILAR) has
devised a set of international criteria that uses the term "juvenile
idiopathic arthritis" (JIA). The word "idiopathic" means "of unknown cause." This approach is
now used by most researchers and health professionals.
The table below summarizes the three
JRA does not include similar types of childhood
arthritis (juvenile ankylosing spondylitis, juvenile psoriatic
No matter the classification, children who have
symptoms before age 16 are said to have juvenile
ByHealthwise StaffPrimary Medical ReviewerSusan C. Kim, MD - PediatricsE. Gregory Thompson, MD - Internal MedicineMartin J. Gabica, MD - Family MedicineKathleen Romito, MD - Family MedicineSpecialist Medical ReviewerJohn Pope, MD - Pediatrics
Current as ofOctober 31, 2016
Current as of:
October 31, 2016
Susan C. Kim, MD - Pediatrics & E. Gregory Thompson, MD - Internal Medicine & Martin J. Gabica, MD - Family Medicine & Kathleen Romito, MD - Family Medicine & John Pope, MD - Pediatrics
To learn more about Healthwise, visit Healthwise.org.
© 1995-2016 Healthwise, Incorporated. Healthwise, Healthwise for every health decision, and the Healthwise logo are trademarks of Healthwise, Incorporated.
Our interactive Decision Points guide you through making key health decisions by combining medical information with your personal information.
You'll find Decision Points to help you answer questions about:
Get started learning more about your health!
Our Interactive Tools can help you make smart decisions for a healthier life. You'll find personal calculators and tools for health and fitness, lifestyle checkups and pregnancy.
Feeling under the weather?
Use our interactive symptom checker to evaluate your symptoms and determine appropriate action or treatment.