Table 1.
Clinical and laboratory characteristics in patients with rheumatoid arthritis (RA) and osteoarthritis (OA), and healthy control (HC) subjects.
| Parameter | RA (n = 54) | OA (n = 20) | HC (n = 60) |
|---|---|---|---|
| Age (y) | 48.2 (17-65) | 61 (57-82) | 43.4 (24-64) |
| Sex (female/male) | 34/6 | 24/4 | 20/5 |
| Median age at onset (y) | 40 (13-63) | - | - |
| Median disease duration (m) | 36 (3-444) | - | - |
| Number of tender joints | 6.50 (0-28) | - | - |
| Number of swollen joints | 1.50 (0-28) | - | - |
| ESR (mm/h) | 37.5 (10-125) | - | - |
| CRP (mg/l) | 10.32 (2.97-84.5) | - | - |
| RF (U/I) | 76.4 (10.3-954) | - | - |
| DAS28-ESR | 4.58 ± 2.08 | - | - |
| BMI (kg/m2) | 22.45 (16.65-28.55) | - | 22.91 (17.33-26.17) |
| Total cholesterol (mmol/l) | 4.41 (2.55-6.16) | - | 5.19 (3.9-7.1) |
| Triglycerides (mmol/l) | 1.44 (0.49-2.15) | - | 1.46 (0.84-3.11) |
The values shown represent the median and the ranges. BMI, body mass index; CRP C-reactive protein; DAS28, 28-joint Disease Activity Score; ESR, erythrocyte sedimentation rate; RF, rheumatoid factor.