Main clinical features of patients with psoriatic arthitis (n=104)
| Characteristic | Value |
| FIS-RA impairment subscale (0–21) | 10 (5) |
| FIS-RA disability subscale (0–30) | 15 (9) |
| Current foot care | 22 (21%) |
| History of foot surgery | 7 (7%) |
| Self-reported foot pain | 64 (62%) |
| Structural index – rearfoot deformity (0–7) | 1 (1) |
| Structural index – forefoot deformity (0–14) | 7 (3) |
| Enthesitis | |
| Achilles tendon | 19 (18%) |
| Plantar fascia | 27 (26%) |
| Tibialis posterior tendon | 35 (34%) |
| Swollen foot joint count (0–14) | 0 (1) |
| Tender foot joint count (0–14) | 3 (3) |
| Dactylitis (foot) | 25 (24%) |
| Skin psoriasis (foot) | 8 (8%) |
| Nail dystrophy (foot) | 13 (13%) |
| Global VAS pain (0–100 mm) | 36 (29) |
| Global health score (0–100 mm) | 42 (26) |
| DMARD therapy | 73 (70%) |
| Biological therapy | 12 (12%) |
Values are expressed as mean (SD) or n (%).
DMARD, disease-modifying antirheumatic drug; FIS-RA, Foot Impact Scale for Rheumatoid Arthritis; VAS, visual analogue scale.