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Etiological data
| Group | Major etiologies | n |
|---|---|---|
| Neurodegenerative | 73 | |
| Frontotemporal dementia | 31 | |
| Huntington's disease | 18 | |
| AD | 4 | |
| Autoimmune/inflammatory | 50 | |
| Multiple sclerosis | 26 | |
| Autoimmune encephalopathya | 11 | |
| Neuropsychiatric lupus | 10 | |
| Vascular | 14 | |
| Vasculitis | 7 | |
| Metabolic | 25 | |
| Mitochondrial | 13 | |
| Storage disorders | 11 | |
| Infectious | 11 | |
| Prion disease | 6 | |
| HIV dementia | 3 | |
| Other | 18 | |
| Unknown | 44 |
Etiological groups were mutually exclusive.
Includes Hashimoto encephalopathy.
