Headache epidemiology in Vitória, Espírito Santo.

This is the first headache survey in the region of Vitória, ES Brazil. A high prevalence of headache sufferers was found (52.8%). Headache was more common among women (63.9%) and less common among people older than 55 years old. The type of professional activity was not related with the headache prevalence. The most frequent causal attribution was stress. Most headache sufferers are not under regular medical treatment (9%), and most of them use analgesic drugs without proper orientation. The most used compounds are combinations with caffeine (33%) and simple analgesics (52.3%).