Baseline characteristics and health of the study participants (n = 323). Group A: patients with PsA. Group B: patients with arthritis and no psoriatic—any type of arthrosis—any type of dermatitis. Group C: healthy controls.
| Characteristics | Group A, n = 209 | Group B, n = 71 | Group C, n = 43 |
|---|---|---|---|
| Sociodemographic features | |||
| Age, yrs*, mean (SD) | 48.7 (11.8) | 46.5 (15.2) | 42 (8.2) |
| Female*, n (%) | 89 (42.6) | 43 (75.7) | 32 (74.4) |
| Educational level*, n (%) | |||
| No education | 6 (2.9) | 3 (4.3) | 0 |
| Primary education | 94 (45) | 34 (48.6) | 7 (16.4) |
| Secondary education | 72 (34.3) | 13 (18.6) | 12 (27.9) |
| University studies | 37 (17.7) | 20 (28.6) | 24 (55.8) |
| Total | 209 (100) | 70 (100) | 43 (100) |
| Employment status*, n (%) | |||
| Working | 105 (50.5) | 31 (44.9) | 40 (93) |
| Unemployed | 16 (7.6) | 5 (7.3) | 0 |
| Student | 3 (1.4) | 3 (4.3) | 0 |
| Retired | 46 (22.1) | 11 (15.9) | 0 |
| Housekeeper | 26 (12.5) | 16 (23.2) | 3 (7) |
| Other | 12 (5.8) | 3 (4.3) | 0 |
| Total | 208 (100) | 69 (100) | 43 (100) |
| Health assessments | |||
| EQ-5D VAS*, mean (SD) | |||
| VAS (0–100)† | 65.4 (22.1) | 65.1 (26.4) | 91.4 (14.1) |
| EQ-5D descriptive system*, % | |||
| Mobility problems | 44.3 | 26.9 | 2.5 |
| Self-care problems | 28.6 | 27 | 0 |
| Daily activities problems | 47.8 | 19.1 | 0 |
| Pain/discomfort | 68.6 | 56.5 | 4.9 |
| Anxiety/depression | 50 | 39.1 | 0 |
| Perceived health state*, % | |||
| Good/very good | 39.1 | 45.5 | 97.1 |
| VITACORA-19*, mean (SD) | |||
| Global score‡ | 56.24 (24.8) | 69.23 (24.8) | 93.7 (9.1) |
| Clinical features | |||
| Time from diagnosis, yrs, mean (SD) | 8 (7.5) | 8 (7.7) | — |
| Psoriasis/other dermatitis diagnosis, n (%) | 203 (98.5) | 40 (56.3) | — |
| Comorbidities, n (%) | 96 (45.9) | 30 (43.2) | — |
| BSA, % (SD) | 22.4 (28.1) | — | — |
| BASDAI, 0–10, mean (SD) | 2.2 (6.3) | — | — |
| DAS28, 2–10, mean (SD) | 2.7 (1.5) | — | — |
↵* p < 0.001.
↵† Range from 0 (worst health status) to 100 (best health status).
↵‡ Global score range from 0 (worst health-related quality of life) to 100 (best health-related quality of life). Statistical significant differences between study groups after adjusting by sociodemographic differences. PsA: psoriatic arthritis; EQ-5D: EuroQol questionnaire 5-Dimensional; VAS: visual analog scale; VITACORA-19: PsA quality of life questionnaire; BSA: body surface area; BASDAI: Bath Ankylosing Spondylitis Disease Activity Index; DAS28: 28-joint Disease Activity Score.