Table 1.
Psoriatic arthritis | Rheumatoid arthritis | P value | |
---|---|---|---|
Patient N | 76 | 55 | NS |
Females (N/%) | 35 (46%) | 40 (73%) | 0.004 |
Males (N/%) | 41 (54%) | 15 (27%) | |
Age (years) | 46 ± 10.2 | 50 ± 11.6 | NS |
Disease duration (months) | 12 ± 8.3 | 16 ± 9.6 | NS |
Rheumatoid factor positive (N/%) | 0 | 48 (89%) | |
Psoriatic arthritis pattern | |||
Peripheral | 45 (59%) | ||
Axial | 7 (9%) | ||
Mixed | 24 (31.5%) | ||
Fatigue (VAS 0–100 mm) | 58 ± 14.3 | 62 ± 14.9 | NS |
Pain (VAS 1–100) | 66 ± 13.4 | 69 ± 10.8 | NS |
Articular morning stiffness (minutes) | 120 ± 46.2 | 132 ± 55.3 | NS |
Tender joint count (N) | 11 ± 4.1 | 12 ± 3.5 | NS |
Swollen joint count (N) | 5 ± 2.1 | 7 ± 3.3 | NS |
Erythrocyte sedimentation rate (mm/h) | 40 ± 15.2 | 46 ± 19.1 | NS |
C-reactive protein (mg/dL) | 4.4 ± 1.9 | 4.9 ± 2.2 | NS |
Patients with dactylitis (N/%) | 10 (13%) | 0 (0%) | 0.014 |
Patients with enthesitis/tenosynovitis (N/%) | 22 (29%) | 3 (5%) | 0.002 |
Patients with extra-articular features (N/%) | 8 (12%) | 5 (9%) | NS |
Disease activity score | 5.21 ± 0.87 | 5.48 ± 0.34 | NS |
Bath Ankylosing | 6.1 ± 1.1 | ||
Spondylitis Disease | |||
Activity Index | |||
Psoriatic Arthritis Severity | 8.7 ± 5.9 | ||
Index score | |||
Methotrexate (N/%) | 64 (84%) | 47 (85%) | NS |
Notes: Bath Ankylosing Spondylitis Disease Activity Index was calculated in patients with axial and mixed pattern PsA (31 patients). Except where otherwise indicated, data are expressed as mean ± SD.
Abbreviations: N, number; NS, not significant; SD, standard deviation; VAS, visual analog scale.