Table 1. Characteristics of the study group vs. the control group.
| Psoriasis group | Early-onset psoriasis (< age 40 years) | Late-onset psoriasis (> or = age 40 years) | Psoriasis patients with biopsies | Control group | Controls with biopsy | |
|---|---|---|---|---|---|---|
| Total number of subjects, n (%) | 97 (mild n = 22; moderate to severe n = 75) | 71 (73.2) | 26 (26.8) | 25 | 104 | 21 |
| Males, n (%) | 57 (58.8) | 43 (60.6) | 14 (53.8) | 14 (56) | 39 (37.5) | 10 (47.6) |
| Females, n (%) | 40 (41.2) | 28 (39.4) | 12 (46.2) | 11 (44) | 65 (62.5) | 11 (52.4) |
| Age at enrolment (years), Mean (SD) | 48.5 (15.9) | 44.0 (16.1) | 60.3 (7.1) | 49.9 (16.7) | 41.6 (16.3) | 47 (15.7) |
| Age at onset of symptoms (years), Mean (SD) | 27.3 (15.9) | 19.4 (8.1) | 50.9 (8.1) | 29.0 (16.5) | - | - |
| PASI, Mean (SD) | 17.2 (9.2) | 17.4 (9.3) | 16.6 (9.0) | 15.5 (6.4) | - | - |
| Positive family history, n (%) | 49 (50.5) | 38 (54.3) | 11 (40.7) | 16 (64) | 0 | 0 |
n-number of participants; SD- standard deviation; PASI—Psoriasis Area and Severity Index.