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Table 1 International League of Associations for Rheumatology criteria for enthesitis-related arthritis

From: Multicenter inception cohort of enthesitis-related arthritis: variation in disease characteristics and treatment approaches

Inclusion criteria

Exclusion criteria

Arthritis and enthesitis

â–ª Psoriasis or a history of psoriasis in the patient or a first degree relative

or

▪ Presence of IgM RF on at least two occasions at least 3 months apart

Arthritis or enthesitis with at least two of the following:

â–ª Systemic JIA in the patient

â–ª Sacroiliac joint tenderness and/or inflammatory spinal pain

â–ª Presence of HLA-B27

▪ Onset of arthritis in a male over 6 years of age

â–ª Family history in at least one first degree relative of ankylosing spondylitis, ERA, sacroiliitis with IBD, reactive arthritis or acute anterior uveitis

â–ª Acute anterior uveitis

 
  1. Abbreviations: ERA Enthesitis-related arthritis, HLA Human leukocyte antigen, IBD Inflammatory bowel disease, IgM Immunoglobulin M, RF Rheumatoid factor, JIA Juvenile idiopathic arthritis