Baseline demographic and disease activity data collected from GRACE CRFs
| Variables | N or mean (SD) | N (data available) |
|---|---|---|
| Demographic data | ||
| Age (year) | 50.8 (13.1) | 503 |
| Gender (M/F) | 286/217 | 503 |
| Ethnicity: North European (N, %) | 417 (82.9) | 503 |
| Duration Psoriasis (y) | 18.4 (13.7) | 478 |
| Duration psoriatic arthritis (y) | 9.8 (9.9) | 502 |
| Acute phase response markers | ||
| CRP (mg/l) | 12.8 (25.9) | 410 |
| ESR (mm/h) | 19.2 (20.6) | 429 |
| Spinal metrology | ||
| Bath spinal metrology index, range 0–10 15 | 2.3 (1.6) | 503 |
| Skin and nails | ||
| Psoriasis area and severity index (range 0–72)16 | 4.2 (6.5) | 503 |
| N (%) of people without active psoriasis | 102 (20.3) | 503 |
| % Body surface area of psoriasis involvement | 7.7 (11.6) | 248 |
| Modified nail psoriasis severity index (range 0–130)17 | 6.7 (11.3) | 503 |
| N (%) of people without nail involvement | 249 (49.5) | 503 |
| Enthesitis counts | ||
| N (%) of people with enthesitis | 244 (49.0) | 502 |
| ▸ Maastricht Enthesitis Score (range 0–13)18 | 1.1 (2.3) | 502 |
| ▸ Leeds Enthesitis Index (range 0–6)19 | 0.6 (1.1) | 502 |
| ▸ Spondyloarthropathy research consortium of Canada index (range 0–16)20 | 1.3 (2.4) | 502 |
| ▸ A combination of all above points, the TOTAL index, range 0–31) | 2.5 (4.4) | 502 |
| Dactylitis | ||
| Dactylitis count (0–20) | ||
| N (%) of people with dactylitis | 101 (20.0) | 502 |
| ▸ Tender digits | 0.3 (1.4) | 502 |
| ▸ All dactylitic digits (tender and non-tender) | 0.6 (2.0) | 502 |
| Peripheral joint counts | ||
| N (%) of people with peripheral joint involvement | 374 (75.0) | 500 |
| ▸ 66 swollen joint count | 3.4 (6.5) | 500 |
| ▸ 68 tender joint count | 7.2 (10.0) | 500 |
| Physician VAS scores | ||
| ▸ Global (0–100) | 31.3 (23.4) | 483 |
| ▸ Skin (0–100) | 22.7 (24.3) | 484 |
| ▸ Joints (0–100) | 27.4 (23.3) | 482 |
| ▸ Patient VAS scores | ||
| ▸ Global (0–100) | 47.2 (28.1) | 478 |
| ▸ Skin (0–100) | 35.0 (30.7) | 476 |
| ▸ Joints (0–100) | 47.3 (30.2) | 478 |
| Health-related quality-of-life and function | ||
| Dermatology life quality index (range 0–30)21 | 6.1 (6.8) | 487 |
| Ankylosing Spondylitis Quality-of-Life index (range 0–18)22 | 7.0 (5.9) | 466 |
| Psoriatic arthritis quality-of-life index (range 0–20)23 | 6.9 (6.6) | 460 |
| SF36 (range 0–100)24 | ||
| ▸ Physical functioning | 57.7 (29.5) | 494 |
| ▸ Role limitation due to physical problems | 46.9 (42.7) | 489 |
| ▸ Role limitation due to emotional problems | 59.3 (44.6) | 486 |
| ▸ Social functioning | 65.2 (28.1) | 493 |
| ▸ Bodily pain | 50.2 (26.3) | 489 |
| ▸ Mental health | 66.9 (21.1) | 489 |
| ▸ Vitality | 51.2 (23.8) | 490 |
| ▸ General health perception | 48.2 (23.0) | 485 |
| Physical component scale of SF36 0–100 | 37.5 (11.2) | 471 |
| Mental component scale of SF36 0–100 | 47.0 (11.7) | 471 |
| Health assessment questionnaire (range 0–3)25 | 0.7 (0.7) | 493 |
CRFs, case report forms; ESR, erythrocyte sedimentation rate; GRACE, GRAppa Composite Exercise.