Spinocerebellar Ataxia Type 1
Spinocerebellar Ataxia Type 1 is indexed under Rare / Orphan Chronic, Hereditary Ataxias. Also known as SCA1, spinocerebellar ataxia 1, Schut disease, Schut-Haymaker type OPCA.
- US prevalence
- No US figure has cleared source review yet. Sources under review: GeneReviews; ClinicalTrials.gov.
- ICD-10-CM codes
- G11.1
- Typical onset
- Typically adult onset; age and progression vary by family and repeat expansion context
- Course
- progressive
- Body systems
- neurological
- Sex differences
- Equal (autosomal dominant)
- Racial and ethnic differences
- Limited epidemiological data; founder effects reported in some populations
What this page does not establish
These figures describe populations, not individuals, and none of them is a diagnosis or a treatment recommendation. Prevalence estimates are approximate and reflect published ranges. Disparity figures are reported patterns, not causes.
Taxonomy last reviewed 2026-05-19. Each figure on the interactive page carries its own source and retrieval date, which can be later than this review.
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