Table 1.
Characteristics of the subjects recruited in this study.
| HC (n = 28) | RA (n = 98) | P value | |
|---|---|---|---|
| Demographical features | |||
| Age (years); median (range) | 49.38 (35.17–60.17) | 52.93 (22.00–65.10) | 0.174 |
| Gender (f/m) | 20/8 | 79/19 | 0.334 |
| Disease features | |||
| Disease duration (years) | 4.00 (7.08) | ||
| Age at diagnosis (years); median (range) | 47.37 (19.00–65.00) | ||
| Disease activity (DAS28) | 4.01 (2.10) | ||
| Tender joint count | 3.00 (7.00) | ||
| Swollen joint count | 2.00 (5.00) | ||
| Patient global assessment (0–100) | 50.00 (35.00) | ||
| Erythrocyte sedimentation rate (mm/h) | 18.00 (29.00) | ||
| C-reactive protein (mg/l) | 2.30 (4.50) | ||
| Health assessment questionnaire (0–3) | 1.00 (1.16) | ||
| RF (+), n (%) | 58 (59.1) | ||
| ACPA (+), n (%) | 61 (62.2) | ||
| Erosive disease, n (%) | 41 (41.8) | ||
| Treatments, n (%) | |||
| None | 18 (18.3) | ||
| Glucocorticoids | 56 (57.1) | ||
| Methotrexate | 65 (66.3) | ||
| Tumor necrosis factor alpha blockers | 36 (36.7) | ||
Variables were summarized as median (interquartile range) or n (%), as appropriate, unless otherwise stated. Differences in demographic parameters were assessed by Mann–Whitney U-tests or χ2 tests, according to the distribution of the variables.