Cumulative and active organ involvement of the entire cohort
| Organ involvement | Cumulative, n (%) | Active, n (%) |
| Joint | 150 (67.6) | 36 (16.1) |
| Skin | 120 (54.1) | 27 (12.1) |
| Haematological | 114 (51.4) | 33 (14.8) |
| Renal | 100 (45.1) | 15 (6.7) |
| Serositis | 41 (18.5) | 1 (0.4) |
| Neuropsychiatric | 28 (12.7) | 0 |