BACKGROUND/ OBJECTIVES: In Brazil, several epidemiological studies on headache have been produced, most with an emphasis on prevalence and the association of primary headaches with some sociodemographic characteristics of the population. Data on the burden of headache, however, are scarce. The aim of this paper is to review all Brazilian population-based studies on headache, as well as to analyze the Migraine Disability Assessment Score (MIDAS) data collected with the PhD thesis of the senior author (LPQ). METHOD: A literature review was performed using the keywords ("headache" or "migraine") and ("epidemiology" or "prevalence") and (Brazil). Another part of this paper will look at unpublished data on disability (MIDAS), collected with the prevalence data of the Brazilian nationwide epidemiological study of headache. RESULTS: There are 6 published epidemiological studies of headache in Brazil. The mean 1-year prevalence of headache in Brazil is 70.6%, of migraine 15.8%, of tension-type headache (TTH) 29.5%, and of chronic daily headache (CDH) 6.1%. Disability is significantly higher: in females compared to males; in patients with migraine and CDH compared to patients with TTH; and in those with headaches ≥15 days per month rather than those with episodic headaches. There was also a positive relationship between pain intensity and severity of disability. Patients with higher disability used more both abortive and prophylactic medication. CONCLUSIONS: The mean prevalence of headache in Brazil, and some of its subtypes, is similar to the rates described in other countries of the world. Disability is higher in females, in patients with migraine, in individuals with headaches ≥15 days per month, and in those with severe head pain.
BACKGROUND/ OBJECTIVES: In Brazil, several epidemiological studies on headache have been produced, most with an emphasis on prevalence and the association of primary headaches with some sociodemographic characteristics of the population. Data on the burden of headache, however, are scarce. The aim of this paper is to review all Brazilian population-based studies on headache, as well as to analyze the Migraine Disability Assessment Score (MIDAS) data collected with the PhD thesis of the senior author (LPQ). METHOD: A literature review was performed using the keywords ("headache" or "migraine") and ("epidemiology" or "prevalence") and (Brazil). Another part of this paper will look at unpublished data on disability (MIDAS), collected with the prevalence data of the Brazilian nationwide epidemiological study of headache. RESULTS: There are 6 published epidemiological studies of headache in Brazil. The mean 1-year prevalence of headache in Brazil is 70.6%, of migraine 15.8%, of tension-type headache (TTH) 29.5%, and of chronic daily headache (CDH) 6.1%. Disability is significantly higher: in females compared to males; in patients with migraine and CDH compared to patients with TTH; and in those with headaches ≥15 days per month rather than those with episodic headaches. There was also a positive relationship between pain intensity and severity of disability. Patients with higher disability used more both abortive and prophylactic medication. CONCLUSIONS: The mean prevalence of headache in Brazil, and some of its subtypes, is similar to the rates described in other countries of the world. Disability is higher in females, in patients with migraine, in individuals with headaches ≥15 days per month, and in those with severe head pain.
Authors: Abrahão Fontes Baptista; Ana Mércia B L Fernandes; Katia Nunes Sá; Alexandre Hideki Okano; André Russowsky Brunoni; Argelia Lara-Solares; Aziza Jreige Iskandar; Carlos Guerrero; César Amescua-García; Durval Campos Kraychete; Egas Caparelli-Daquer; Elias Atencio; Fabián Piedimonte; Frantz Colimon; Fuad Ahmed Hazime; João Batista S Garcia; John Jairo Hernández-Castro; José Alberto Flores Cantisani; Kátia Karina do Monte-Silva; Luis Claudio Lemos Correia; Manuel Sempértegui Gallegos; Marco Antonio Marcolin; María Antonieta Ricco; María Berenguel Cook; Patricia Bonilla; Pedro Schestatsky; Ricardo Galhardoni; Valquíria Silva; William Delgado Barrera; Wolnei Caumo; Didier Bouhassira; Lucy S Chipchase; Jean-Pascal Lefaucheur; Manoel Jacobsen Teixeira; Daniel Ciampi de Andrade Journal: Pain Rep Date: 2019-01-09