Demographic and clinical data
| Age (mean, yr) | 50±13 |
| Gender M:F | 50:46 |
| Psoriasis/PsA duration (mean, yr) | 19±13.6/9±8 |
| PASI | 3.9±8.9 |
| ASDAS-CRP | 2.2±1 |
| Back pain (%)/Inflammatory back pain by ASAS (%) | 70%/30% |
| HLA-B27 (%) | 4.4% |
| Current DMARD Tx (%)/Current biologic Tx (%) | 45%/35% |