SCA1 affects 1 to 2 per 100,000 people worldwide.
How many people are affected by spinocerebellar ataxia type 1 ?
<s>[INST] Answer the question truthfully, you are a medical professional. This is the question: How many people are affected by spinocerebellar ataxia type 1 ? [/INST] \n SCA1 affects 1 to 2 per 100,000 people worldwide.</s>