Table 1.

Clinical characteristics of patients with juvenile rheumatoid arthritis

Parameter	Systemic onset JRA (n = 20)	Polyarticular JRA (n = 16) or pauciarticular JRA (n = 4)
Male/female	9/11	14/6
Mean age, years (range)	11.5 (2–23)	12.8 (3–22)
Mean disease duration, years (range)	4.1 (0.2–16)	5.8 (0.9–15)
No. with active arthritis (%)	17 (85)	17 (85)
No. with active systemic disease (%)	8 (40)	-
Mean ESR, mm/h (range)	30 (5–85)	21 (5–57)
No. (%) receiving
Prednisone	6 (30)	3 (15)
Methotrexate	12 (60)	10 (50)
TNF-blocking agent	3 (15)	5 (25)
Intra-articular steroids	1 (5)	4 (20)
NSAID	17 (85)	18 (90)

ESR, erythrocyte sedimentation rate; JRA, juvenile rheumatoid arthritis; NSAID, non-steroidal anti-inflammatory drugs; TNF, tumor necrosis factor.