Table 2.

Clinical characteristics of patients with RA.

CharacteristicMedian (range)
Disease duration, yrs5 (0.2–40)
Tender joint count5 (0–27)
Swollen joint count5 (0–26)
Patient’s global assessment of disease activity (100-mm VAS)36.5 (0–100)
DAS28-4ESR4.8 (1.5–8.5)
CRP, mg/dl1.3 (0.1–16.5)
ESR, mm/h39 (5–130)
MMP-3, mg/dl155 (31.3–703)
RF, mg/dl72 (1–1715)
Steinbrocker stage, no.I:25, II:14, III:13, IV:18
Steinbrocker class, no.1:23, 2:41, 3:6, 4:0
  • VAS: visual analog scale; DAS28: 28-joint count disease activity score; CRP: C-reactive protein; ESR: erythrocyte sedimentation rate; MMP-3: matrix metalloproteinase-3; RF: rheumatoid factor.