Demographic, clinical and laboratory features of the patients and controls
| Psoriatic arthritis, n=97 | Healthy controls, n=57 | P value | |
|---|---|---|---|
| Median age (yrs) | 48 (25–65) | 43 (31–57) | 0.09 |
| Sex, M/F | 32/65 | 24/33 | 0.29 |
| Median disease duration (yrs) | 4 (0–43) | ||
| Smoking status, % | 28.9 | 40.4 | 0.15 |
| GLP-1 (pmol/L) | 15.2 (3.6–58.6) | 15.3 (3–56.3) | 0.77 |
| Insulin (μIU/ml) | 7.4 (2–24.7) | 5.7 (2.5–14.2) | 0.02 |
| HOMA-IR | 1.6 (0.4–5.6) | 1.3 (0.4–3.3) | 0.054 |
| ESR (mm/h) | 26 (2–100) | 12 (3–35) | <0.001 |
| hs-CRP (mg/L) | 4.9 (0.7–65.2) | 1.5 (0.2–6.8) | <0.001 |
* GLP-1: glucagon like polipeptid-1; HOMA-IR: insulin resistance; ESR: erythrocyte sedimentation rate; hs-CRP: high sensitive C-reactive protein.