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Table 2 Comparison between ASAS criteria for peripheral spondyloarthritis and current revised ILAR classification criteria for ERA

From: Clinical features of children with enthesitis-related juvenile idiopathic arthritis / juvenile spondyloarthritis followed in a French tertiary care pediatric rheumatology centre

  ASAS criteria for peripheral SpA ILAR criteria for ERA or PsA p
1st consultation (%)
 All patients 83 (73%) 55 (48%) <  0.01
 Boys 55 (76%) 43 (60%) 0.03
 Girls 28 (67%) 12 (29%) < 0.01
Last follow up (%)
 All patients 105 (92%) 85 (75%) < 0.01
 Boys 65 (90%) 56 (78%) 0.04
 Girls 40 (95%) 32 (76%) 0.01
  1. ASAS Assessment of Spondyloarthritis International Society, ILAR International League of Association for Rheumatology, ERA enthesitis related arthritis
  2. In our cohort, the ASAS criteria more efficiently diagnosed juvenile spondyloarthritis than the ILAR criteria. Furthermore, the ILAR criteria performed more poorly in the diagnosis of the disease during the first year in girls than boys (p = 0.001)