Table 1.
Demographic, laboratory and clinical data for the RA patient group (n = 143)
| Parameters | Data | Median [IQR] | Range |
|---|---|---|---|
| Age (years) | 48 ± 12 | 48 [41 to 56] | 20 to 75 |
| Females, n (%) | 118 (82.5%) | ||
| Blacks, n (%) | 124 (86.7%) | ||
| DAS28-CRP | 5.6 ± 1.3 | 5.7 [4.8 to 6.7] | 2.3 to 8.7 |
| Disease duration (months) | 12 ± 7 | 10 [6 to 18] | 0 to 25 |
| Larsen radiographic scores | 23 ± 14 | 19 [14 to 28] | 1 to 66 |
| RF (IU/ml) | 490 ± 795 | 168 [38 to 595] | 4 to 5,350 |
| aCCP (U/ml) | 669 ± 636 | 492 [85 to 1,099] | 2 to 2,527 |
| CRP (μg/L) | 24 ± 32 | 14 [5 to 32] | 0 to 198 |
| SAA (μg/ml) | 62 ± 123 | 14 [5 to 65] | 1 to 882 |
aCCP = anticyclic citrullinated peptide antibodies; CRP = C-reactive protein; DAS28 = Disease Activity Score in 28 joints; RF = rheumatoid factor; SAA = serum amyloid A. Data are means ± SD, n (%), medians [25th to 75th IQR] or raw data as indicated.