Table 1 The ten most prevalent autoimmune conditions in individuals with metastatic melanoma
No. | Autoimmune conditions | ICD-9 codes | % in metastatic melanoma (N = 12,028) | % in non-metastatic melanoma (N = 127,184) | % in general population (N = 342,492,007) |
|---|---|---|---|---|---|
1 | Myositis | 729.1 | 3.6 | 3.1 | 2.2 |
2 | Peripheral neuropathy | 356.0, 356.8, 356.9 | 2.6 | 1.5 | 0.5 |
3 | Type 1 diabetes mellitus | 250.×1, 250.×3. | 2.4 | 1.6 | 1.1 |
4 | Rheumatoid arthritis | 714, 714.0, 714.1, 714.2, 714.3, 714.31, 714.32, 714.33, 714.4, 714.8, 714.81, 714.89, 714.9 | 1.7 | 1.4 | 0.8 |
5 | Psoriasis | 696, 696.0, 696.1, 696.2, 696.3, 696.4, 696.5, 696.8 | 1.1 | 1.5 | 0.8 |
6 | Autoimmune pancreatitis | 577.0, 577.1 | 1.1 | 0.3 | 0.2 |
7 | Autoimmune aplastic anemia | 284, 284.89, 284.9 | 1.0 | 0.1 | < 0.1 |
8 | Relapsing polychondritis | 733.99 | 0.9 | 0.3 | 0.2 |
9 | Hashimoto’s encephalitis | 348.30 | 0.9 | 0.2 | 0.2 |
10 | Ulcerative colitis | 556, 556.0, 556.1, 556.2, 556.3, 556.4, 556.5, 556.6, 556.8, 556.9 | 0.7 | 0.5 | 0.3 |