From: Association between the PTPN22+1858 C/T polymorphism and psoriatic arthritis
Age (years) | 52.2 ± 13.1 |
PsA duration (years) | 15.2 ± 11.7 |
Tender joints (mean ± SEM) | 6.6 ± 0.5 |
Swollen joint (mean ± SEM) | 4.4 ± 0.3 |
Duration of skin disease (years) | 25.3 ± 14.8 |
Duration of joint disease (years) | 14.3 ± 11.4 |
ESR mm/h | 16.2 ± 15.7 |
CRP mg/L | 10.5 ± 8.1 |
Arthritic joints (mean ± SEM) | 3.0 ± 0.2 |
Deformed joint (mean ± SEM) | 3.8 ± 0.5 |
Rheumatoid factor positive | 34 (11.9%) |
Anti-citrullinated protein/peptide antibodies positive | 21 (7.3%) |
Nail involvement | 121 (42.6%) |
DIP-joint involvement | 93 (33.2%) |
Dactylitis "ever" | 64 (23.4%) |
Fulfilling CASPAR | 247 (92.9%) |
Mono-/oligoarthritis | 117 (41.3%) |
Polyarthritis | 135 (47.7%) |
Axial involvement | 60 (20.8%) |