Table 1.

The clinical and laboratory features of patients with ankylosing spondylitis, rheumatoid arthritis, gout, and osteoarthritis

Parameters	Ankylosing spondylitis	Rheumatoid arthritis	Gout	Osteoarthritis
No. of patients	10	10	10	10
Age (years)	32.6 ± 10.6	59.6 ± 11.6	62.8 ± 12.8	64.8 ± 8.5
Sex (M/F)	9/1	0/10	10/0	1/9
ESR (mm/h)	59.5 ± 39.7	32.7 ± 17.0	69 ± 21.3 (n = 5)	27.5 ± 15.2 (n = 4)
CRP (mg/dL)	4.9 ± 4.3	0.5 ± 3.7	3.4 ± 3.7 (n = 6)	0.1 ± 0.04 (n = 4)

CRP: C-reactive protein; ESR: erythrocyte sedimentation rate; F: female; M: male