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OBJECTIVE: To determine the prevalence, characteristics and impact of headache among university students. METHOD: The criteria established by the International Headache Society were used to define the primary headache subtypes and the Migraine Disability Assessment Questionnaire (MIDAS), to assess the disability. The students were then grouped into six categories:  migraine;  probable migraine;  tension-type headache;  probable tension-type headache;  non-classifiable headache;doi:10.1590/s0004-282x2010000600008 pmid:21243244 fatcat:xajl5ngzgvgv5akidu6wto2e7e