Table 2.
Demographic, clinical, and instrumental characteristics of 66 RA patients
| Mean | Median | SD | Q25–Q75 | |
|---|---|---|---|---|
| Age (years) | 55.56 | 57.50 | 12.21 | 47.00–65.00 |
| Educational level (years) | 10.59 | 10.00 | 3.64 | 6.50–13.00 |
| Disease duration (years) | 4.43 | 4.00 | 3.00 | 3.00–7.00 |
| Number of comorbidity | 1.71 | 1.00 | 1.51 | 1.00–2.00 |
| CRP (mg/dl) | 4.47 | 3.41 | 3.56 | 2.20–4.84 |
| TJC (0–28) | 13.43 | 11.00 | 8.21 | 6.00–20.00 |
| SJC (0–28) | 9.59 | 8.00 | 6.45 | 4.00–14.00 |
| GH (0–100) | 70.07 | 80.00 | 27.25 | 50.00–90.00 |
| DAS28-CRP (0–10) | 4.54 | 4.60 | 0.56 | 4.09–4.99 |
| CDAI (0–68) | 35.92 | 33.00 | 16.13 | 23.00–49.00 |
| SDAI (0–78) | 43.14 | 42.05 | 14.92 | 30.55–55.66 |
| HGs peak grip force (kg) | 20.35 | 16.77 | 9.17 | 11.82–30.27 |
| ROAD upper extremity function (0–10) | 5.35 | 6.00 | 2.80 | 3.00–7.50 |
| QuickDASH (0–100) | 26.66 | 24.00 | 11.89 | 14.00–37.00 |
| AIMS2-HFF | 4.02 | 4.00 | 1.90 | 2.50–5.00 |
| mod SAMIS-BME (0–30) | 7.77 | 7.91 | 4.90 | 3.00–12.00 |
| mod SAMIS-ERO (0–45) | 18.28 | 18.61 | 9.40 | 12.00–22.00 |
| mod SAMIS synovitis (0–6) | 3.55 | 3.29 | 1.87 | 2.00–5.00 |
| mod SAMIS total score (0–81) | 29.61 | 30.00 | 11.29 | 21.50–36.00 |
| US-CLARA (0–10) | 5.76 | 6.53 | 2.02 | 3.76–7.30 |
CRP C-reactive protein; TJC tender joint count; SJC swollen joint count; GH general health status; DAS28 Disease Activity Score 28 joints; CDAI Clinical Disease Activity Index; SDAI Simplified Disease Activity Index; HGs handgrip strength; ROAD Recent-Onset Arthritis Disability questionnaire; QuickDASH shortened Disability of Arm, Shoulder and Hand questionnaire; AIMS2-HFF Arthritis Impact Measurement Scale Hand and Finger Function; mod SAMIS modified Simplified Rheumatoid Arthritis Magnetic Resonance Imaging Score; BME bone marrow edema; ERO erosion; US-CLARA UltraSound-CLinical ARthritis Activity index