Underlying conditions in patients with systemic AA amyloidosis
| Condition | No of patients (%) |
| Juvenile rheumatoid arthritis | 50 (36) |
| Rheumatoid arthritis | 40 (29) |
| Chronic sepsis | 9 (6.5) |
| Familial Mediterranean fever | 7 (5.1) |
| Tuberculosis | 6 (4.3) |
| Crohn’s disease | 5 (3.6) |
| Castleman’s disease1-150 | 3 (2.2) |
| Ankylosing spondylitis | 2 (1.4) |
| Epidermolysis bullosa congenita1-150 | 1 (0.7) |
| Familial Hibernian fever1-150 | 1 (0.7) |
| Intravenous drug misuse | 1 (0.7) |
| Paraplegia | 1 (0.7) |
| Psoriatic arthropathy | 1 (0.7) |
| Polyarteritis nodosa | 1 (0.7) |
| Peritoneal mesothelioma1-150 | 1 (0.7) |
| Muckle-Wells syndrome | 1 (0.7) |
| Systemic vasculitis | 1 (0.7) |
| Not known1-150 | 7 (5.1) |
↵1-150 Conditions in which systemic AA amyloidosis is not widely recognised as a complication.