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

Table 1 Demographics and baseline characteristics of patients with OA or RA and of asymptomatic organ donors^a

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

^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.

ISSN: 1478-6362