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Table 1 Demographic and clinical features of JIA patients and controls

From: Frequency of CD19+CD24hiCD38hi regulatory B cells is decreased in peripheral blood and synovial fluid of patients with juvenile idiopathic arthritis: a preliminary study

Characteristics JIA patients Controls
Number 21a 11
Gender, Female:Male (n:n) 12:9 6:5
Age (years) 10.9 ± 1.1 12.4 ± 1.1
Duration of disease (years) 3.7 ± 0.7 NA
Treatment when sampled; n NSAID, MTX, anti-TNF;4
NSAID, Anti-TNF; 3
MTX, anti-TNF;1
Anti-TNF;4
NSAID; 7
None; 2b
None; 5
NSAID alone;6
RF Pos:Neg (n) 4:14c 0:11
PB White blood cell count (× 109/L) 7.62 ± 0.66 6.19 ± 0.54
PB Lymphocyte count (×109/L) 3.06 ± 0.31 2.24 ± 0.12
  1. aOne patient was sampled at both active and inactive phase
  2. bPatients were sampled when diagnosis was made and before treatment was given
  3. cRF was not tested in 3 patients
  4. JIA juvenile idiopathic arthritis, MTX methotrexate, NA not applicable, Neg negative, NSAID non-steroidal anti-inflammation drug, Pos positive, RF rheumatoid factor, TNF tumor necrosis factor, PB peripheral blood