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Disease-Modifying Antirheumatic Drugs in Children With Juvenile Idiopathic Arthritis

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Characteristics of JIA

To be considered JIA, onset must occur before 16 years of age.

JIA is heterogeneous: the presentation of the disease and its natural history vary among individuals and over time.

The disease is typically classified into categories based on the symptoms displayed and their severity:

  • Systemic arthritis
  • Oligoarthritis
  • Rheumatoid-factor positive (RF+) polyarthritis
  • Rheumatoid-factor negative (RF-) polyarthritis
  • Enthesitis-related arthritis (inflammation of tendons and ligaments at the site of connection to bone)
  • Psoriatic arthritis
  • Undifferentiated