Characteristics of the 290 patients at baseline. Values are % or mean (SD). Demographic characteristics.
| Variables | EFP, n = 36 | EPP, n = 254^ |
|---|---|---|
| Age at diagnosis of psoriasis, yrs | 22.5 (14.7) | 27.6 (12.1) |
| Age at diagnosis of PsA, yrs | 34.1 (12.9) | 34.3 (11.1) |
| Age at baseline, first visit to clinic, yrs | 38.8 (12.1) | 41.6 (11.7) |
| Duration of psoriasis, yrs | 16.3 (12.3) | 13.9 (11.5) |
| Duration of PsA, yrs | 4.8 (6.6) | 7.2 (8.1) |
| Male | 58.3 | 58.7 |
| White vs others | 86.1 | 91.7 |
| Employed, yes | 100 | 69.8 |
| Education status: college/university vs ≤ high school | 90.9/9.1 | 60.0/40.0 |
| Smoking status, ever/never | 61.5/38.5 | 47.6/52.4 |
| Alcohol status, ever/never | 70.4/29.6 | 61.0/39.0 |