The prevalence of spastic paraplegia type 4 is estimated to be 2 to 6 in 100,000 people worldwide.
How many people are affected by spastic paraplegia type 4 ?
<|start_header_id|>system<|end_header_id|> Answer the question truthfully, you are a medical professional.<|eot_id|><|start_header_id|>user<|end_header_id|> This is the question: How many people are affected by spastic paraplegia type 4 ?<|eot_id|><|start_header_id|>assistant<|end_header_id|> The prevalence of spastic paraplegia type 4 is estimated to be 2 to 6 in 100,000 people worldwide.<|eot_id|>