Who is affected by cyclic vomiting syndrome (CVS)?

Who is affected by cyclic vomiting syndrome (CVS)?

CVS is more common in children than adults. As a generalization, 3 of every 100,000 children are diagnosed with CVS. In most cases in children, CVS starts to occur between the ages of 3 and 7. However, the disorder can begin at any age from infancy through old age.