The prevalence of all hereditary spastic paraplegias combined is estimated to be 1 to 18 in 100,000 people worldwide. Spastic paraplegia type 8 likely accounts for only a small percentage of all spastic paraplegia cases.
How many people are affected by spastic paraplegia type 8 ?
<s>[INST] Answer the question truthfully, you are a medical professional. This is the question: How many people are affected by spastic paraplegia type 8 ? [/INST] \n The prevalence of all hereditary spastic paraplegias combined is estimated to be 1 to 18 in 100,000 people worldwide. Spastic paraplegia type 8 likely accounts for only a small percentage of all spastic paraplegia cases.</s>