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Table 1 Demographics and baseline characteristics of patients with OA or RA and of asymptomatic organ donorsa

From: The role of synovial fluid markers of catabolism and anabolism in osteoarthritis, rheumatoid arthritis and asymptomatic organ donors

Patient demographics OA (n= 45) RA (n= 22) Donors (n= 20)
Mean age, yr (±SD) 53 ± 9 54 ± 11 52 ± 7
Sex, M/F 6/39 5/17 5/15
WOMAC score 95 to 1,828 NA NA
ESR, mm/hour NA 10 elevated, 12 normal NA
X-ray (K-L grade) 2-4 NA NA
RF, IU NA All positive NA
SF, WBC/μL <2,000 7,000 to 25,000 <2,000
  1. aOA, osteoarthritis; RA, rheumatoid arthritis; Donors, asymptomatic organ donor; ESR, erythrocyte sedimentation rate; WOMAC, Western Ontario and McMaster Universities (WOMAC) index; K-L grade, Kellgren-Lawrence grade; RF, rheumatoid factor; IU, international units; SF WBC, synovial fluid white blood cell count; NA, not applicable. The ages of patients and donors are mean age at study entry ± SD.