“…10 In a study of 11-to 14 year-old migraine sufferers (n ¼ 42), the 10-year rates were 36%, 38%, and 23%, respectively 18 ; the 5-year rates were 28% (headache-free) and 56% (persistent migraine). 12 Migraine prevalence seems to decrease gradually over time to a level that nevertheless remains high. Reported rates are 60%, 56%, 49%, 45%, 38%-55%, 49%, and 54% at 3, 5, 6, 8, 10, 20, and 40 years, respectively.…”