Table 3 Associated autoimmune and systemic disease (no. of patients, n (%))
Diffuse | Nodular | Necrotizing | Posterior | |
|---|---|---|---|---|
Number of patients | 75 (62.5) | 25 (20.8) | 7 (5.8) | 13 (10.8) |
Systemic autoimmune disease | 19 (25.3) | 2 (8.0) | 6 (85.7) | 4 (30.8) |
Rheumatoid arthritis | 6 (5.0) | 0 | 3 (42.9) | 0 |
Granulomatosis with polyangitis | 3 (4.0) | 0 | 0 | 2 (15.4) |
Relapsing polychondritis | 2 (2.7) | 1 (4.0) | 1 (14.3) | 0 |
Psoriatic arthropathy | 2 (2.7) | 0 | 0 | 0 |
Presumed infectious association | 4 (5.3) | 6 (24.0) | 0 (0) | 0 (0) |