BACKGROUND: Studies using resources of a public family health program to estimate the prevalence of chronic daily headaches (CDH) are lacking. OBJECTIVES: To estimate the 1-year prevalence of CDH, as well as the presence of associated psychiatric and temporomandibular disorders (TMD) comorbidities, on the entire population of a city representative of the rural area of Brazil. METHODS: This was a cross-sectional, population-based, 2-phase study. In the first phase, health agents interviewed all individuals older than 10 years, in a rural area of Brazil. In the second stage, all individuals who reported headaches on 4 or more days per week were then evaluated by a multidisciplinary team. CDH were classified according to the second edition of the International Classification of Headache Disorders (ICHD-2). Medication overuse headache was diagnosed, as per the ICHD-2, after detoxification trials. Psychiatric comorbidities and TMD were diagnosed based on the DSM-IV and on the Research Diagnostic Criteria for Temporomandibular Disorders criteria, respectively. RESULTS: A total of 1631 subjects participated in the direct interviews. Of them, 57 (3.6%) had CDH. Chronic migraine was the most common of the CDH (21, 36.8%). Chronic tension-type headache (10, 17.5%), medication overuse headache (13, 22.8%) and probable medication overuse headache (10, 17.5%) were also common. Psychiatric disorders were observed in 38 (67.3%) of the CDH subjects. TMD were seen in 33 (58.1)% of them. CONCLUSIONS: The prevalence of CDH in the rural area of Brazil is similar to what has been reported in previous studies. A significant proportion of them have psychiatric comorbidities and/or TMD. In this sample, comorbidities were as frequent as reported in convenience samples from tertiary headache centers.
BACKGROUND: Studies using resources of a public family health program to estimate the prevalence of chronic daily headaches (CDH) are lacking. OBJECTIVES: To estimate the 1-year prevalence of CDH, as well as the presence of associated psychiatric and temporomandibular disorders (TMD) comorbidities, on the entire population of a city representative of the rural area of Brazil. METHODS: This was a cross-sectional, population-based, 2-phase study. In the first phase, health agents interviewed all individuals older than 10 years, in a rural area of Brazil. In the second stage, all individuals who reported headaches on 4 or more days per week were then evaluated by a multidisciplinary team. CDH were classified according to the second edition of the International Classification of Headache Disorders (ICHD-2). Medication overuse headache was diagnosed, as per the ICHD-2, after detoxification trials. Psychiatric comorbidities and TMD were diagnosed based on the DSM-IV and on the Research Diagnostic Criteria for Temporomandibular Disorders criteria, respectively. RESULTS: A total of 1631 subjects participated in the direct interviews. Of them, 57 (3.6%) had CDH. Chronic migraine was the most common of the CDH (21, 36.8%). Chronic tension-type headache (10, 17.5%), medication overuse headache (13, 22.8%) and probable medication overuse headache (10, 17.5%) were also common. Psychiatric disorders were observed in 38 (67.3%) of the CDH subjects. TMD were seen in 33 (58.1)% of them. CONCLUSIONS: The prevalence of CDH in the rural area of Brazil is similar to what has been reported in previous studies. A significant proportion of them have psychiatric comorbidities and/or TMD. In this sample, comorbidities were as frequent as reported in convenience samples from tertiary headache centers.
Authors: Eric Schiffman; Richard Ohrbach; Edmond Truelove; John Look; Gary Anderson; Jean-Paul Goulet; Thomas List; Peter Svensson; Yoly Gonzalez; Frank Lobbezoo; Ambra Michelotti; Sharon L Brooks; Werner Ceusters; Mark Drangsholt; Dominik Ettlin; Charly Gaul; Louis J Goldberg; Jennifer A Haythornthwaite; Lars Hollender; Rigmor Jensen; Mike T John; Antoon De Laat; Reny de Leeuw; William Maixner; Marylee van der Meulen; Greg M Murray; Donald R Nixdorf; Sandro Palla; Arne Petersson; Paul Pionchon; Barry Smith; Corine M Visscher; Joanna Zakrzewska; Samuel F Dworkin Journal: J Oral Facial Pain Headache Date: 2014
Authors: Antonio Lucio Teixeira; Esther Angélica Coelho Costa; Ariovaldo Alberto da Silva; Igor Alvarenga Moreira dos Santos; Rodrigo Santiago Gómez; Arthur Kummer; Edward C Lauterbach Journal: J Headache Pain Date: 2012-09-01 Impact factor: 7.277