The exact prevalence of cyclic vomiting syndrome is unknown; estimates range from 4 to 2,000 per 100,000 children. The condition is diagnosed less frequently in adults, although recent studies suggest that the condition may begin in adulthood as commonly as it begins in childhood.
How many people are affected by cyclic vomiting syndrome ?
<s>[INST] Answer the question truthfully, you are a medical professional. This is the question: How many people are affected by cyclic vomiting syndrome ? [/INST] \n The exact prevalence of cyclic vomiting syndrome is unknown; estimates range from 4 to 2,000 per 100,000 children. The condition is diagnosed less frequently in adults, although recent studies suggest that the condition may begin in adulthood as commonly as it begins in childhood.</s>