Long-term trends in the incidence of headache in Finnish schoolchildren.

  title={Long-term trends in the incidence of headache in Finnish schoolchildren.},
  author={Pirjo Anttila and Liisa Mets{\"a}honkala and Matti Sillanp{\"a}{\"a}},
  volume={117 6},
OBJECTIVE To study changes over time in the incidence of migraine and frequent headache. METHODS A population-based study on migraine and other headaches in Finnish children starting school at age 7 years in the city of Turku was conducted in 1974, 1992, and 2002. The study design used in each study was virtually identical. The study population included 1927 children in 1974, 1436 children in 1992, and 1066 children in 2002. The corresponding response rates were 90%, 96%, and 81%. RESULTS… CONTINUE READING