Characteristics of the patient population.
| Variable | PAIR, n = 233 | PsA Cohort, n = 484 | p |
|---|---|---|---|
| Age, yrs, mean (SD) | 53.2 (12.7) | 52.3 (13.4) | 0.40 |
| Men | 145 (62.2) | 287 (59.3) | 0.45 |
| Women | 88 (37.8) | 197 (40.7) | |
| Disease duration, n (%) | 0.006 | ||
| ≤ 3 mo | 1 (0.4) | 29 (6.0) | |
| > 3 to ≤ 6 mo | 1 (0.4) | 0 (0.0) | |
| > 6 to ≤ 24 | 16 (6.9) | 28 (5.8) | |
| > 24 mo | 206 (88.4) | 403 (83.3) | |
| Unknown | 9 (3.9) | 24 (5.0) | |
| Smoking, n (%) | 0.41 | ||
| Current | 29 (12.5) | 50 (10.3) | |
| Ever | 50 (21.5) | 111 (22.9) | |
| Never | 133 (57.1) | 227 (46.9) | |
| Unknown | 21 (9) | 96 (19.8) |
PAIR: PsA Assessment in Rheumatology study; PsA: psoriatic arthritis.