Demographic features of nine patients with PsA at baseline
| Characteristic | Number or mean (SD) |
|---|---|
| *Total number of joints counted 68; †total number of joints counted 66. | |
| Sex (M/F) | 4/5 |
| Age (years) | 41 (13) |
| Disease duration (years) | 10.5 (8.0) |
| DMARDs per patient (n) | 3.6 (1.3) |
| Current DMARD | Methotrexate |
| Mean dosage (mg/week) | 17.5 |
| Tender joint count* | 16.4 (8.6) |
| Swollen joint count† | 10.5 (3.8) |
| HLA-B27 positivity | 3 |