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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