Table 1.
Age and clinical characteristics of the patients studied.
| Ps (n = 41) | PsA (n = 31) | Control (n = 30) | p | |
|---|---|---|---|---|
| male/female (number) | 22/19 | 15/16 | 14/16 | — |
| Age (years, mean ± SD) | 47.6 ± 9.6 | 49.7 ± 10.8 | 49.4 ± 12.7 | ns |
| Ps duration (years, median, IQR) | 17.5 ± 11.3 | 19.3 ± 6.6 | — | ns |
| PsA duration (years, median, IQR) | — | 7.8 ± 7.1 | — | — |
| DAS 28 (mean ± SD) | — | 3.3 ± 0.6 | — | — |
| PASI (mean ± SD) | 6.4 ± 3.6 | 4.7 ± 3.7 | — | 0.034 |
| mNAPSI (mean ± SD) | 21.8 ± 16.2 | 20.3 ± 15.2 | — | ns |
| ESR (mean ± SD) | 13.5 ± 6.8 | 25.7 ± 10.2 | — | 0.017 |
| CRP (mg/dl, mean ± SD) | 2.4 ± 2.5 | 9.4 ± 4.1 | — | <0.001 |
| TJC (number, mean ± SD) | — | 2.8 ± 1.4 | — | — |
| SJC (number, mean ± SD) | — | 2.3 ± 0.6 | — | — |
Results are presented as numbers, mean values and standard deviations (SD) or medians and interquartile ranges (IQR).
Ps: psoriasis, PsA: psoriatic arthritis, DAS: disease activity score, PASI: psoriasis area severity index, mNAPSI: modified nail psoriasis severity index; ESR: erythrocyte sedimentation rate, CRP: C-reactive protein, TJC: tender joint count; SJC: swollen joint count.