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Table 1 Clinical features of patients with juvenile idiopathic arthritis

From: An association between the acute phase response and patterns of antigen induced T cell proliferation in juvenile idiopathic arthritis

Subclass

n

Female/male

Age in years (median [range])

Disease duration in months (median [range])

B27+ (n)

ANA+ (n)

Oligoarthritis

13

8/5

8 (2–17)

34 (6–106)

1

6

Ext. oligoarthritis

2

2/0

12 (10–14)

98 (65–131)

0

1

Systemic arthritis

1

0/1

15

156

0

0

Psoriatic

8

4/4

13 (6–15)

42 (5–175)

2

6

ERA

7

1/6

13 (9–14)

12 (1–60)

3

2

Polyarthritis RF-

5

1/4

10 (5–14)

10 (4–129)

1

3

Polyarthritis RF+

1

1/0

15

12

0

0

Other

2

0/2

11 (9–13)

3 (3–3)

0

0

Total

39

17/22

11 (2–17)

27 (1–175)

7

18

  1. ANA, antinuclear antibody; RF, rheumatoid factor;