Table 1.

Clinical Parameters.

	Healthy Controls (n=25)	RA Patients (n= 67)
Age, years	30.9 ± 2.5	47.4 ± 11.1
Female/male, no.s	21/4	62/5
Disease duration, years	N.A	7.5 ± 3.5
Rheumatoid factor-positive, n (%)	N.D	71.6
Anti-CCP positive, n (%)	N.D	55.2
CRP, mg/dl	N.D	49.7 ± 44.1
ESR, mm/hour	N.D	62.9 ± 33.2
DAS28	N.A	5.20 ± 0.9
Previous medications, n (%)
Corticosteroids	N.A	38(67)
DMARDS	N.A
Methotrexate		62(67)
HCQS		49(67)
Leflunomide		24(67)
NSAIDS	N.A	6(67)