| Associated autoimmune disease | Maladie de Basedow (n = 6) | Hashimoto’s thyroiditis (n = 4) |
| Biermer disease | 3 | 2 |
| Slow adrenal insufficiency | 1 | 1 |
| Myasthenia | 1 | 0 |
| Lupus | 1 | 1 |