title: Prevalence of migraine and tension-type headache among school children in Yazd, Iran.
abstract: OBJECTIVE
  The etiology and pathogenesis of migraine and other types of headache are still under discussion. The aim of this study was to investigate the prevalence of migraine and tension-type headache and its association with demographic variables among schoolchildren.
  
  
  METHODS
  A cross-sectional study was performed on 930 school children (aged 12-14 years) through cluster sampling method. International Headache Society criteria were used for diagnosis. Descriptive statistics and logistic regression were used for data analysis.
  
  
  RESULTS
  The prevalence of migraine headache was 12.3% (95% CI: 10.2-14.4) and tension-type headache was 4.2% (95% CI: 2.9-5.6). The factor associated with migraine in multivariate analysis were age and sleep disturbances.
  
  
  CONCLUSIONS
  Migraine is common among school children, although it may be under-recognized. Because children with migraine and tension-type headache have a high prevalence of sleep disturbances, they should always be evaluated for the presence of sleep problems.
authors.affiliation: Department of Biostatistics and Epidemiology, Daneshjoo Boulevard, Health School, Shahid Sadoughi University of Medical Sciences-Yazd, Iran.
authors.forename: H
authors.initials: H
authors.lastname: Fallahzadeh
authors.forename: M
authors.initials: M
authors.lastname: Alihaydari