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Epidemiologic study of cluster headache prevalence in a medium-size city in Brazil
Mauro E Jurno1, Bárbara S R Pereira1, Felipe A S Fonseca1
1Faculdade de Medicina de Barbacena, Barbacena, Brasil.
Insights
This study found a cluster headache (CH) prevalence of 41.4 per 100,000 people in Barbacena, Brazil. This rate is lower than many global estimates for this debilitating neurological condition.
Area of Science:
- Neurology
- Epidemiology
Background:
- Cluster headache (CH) is a severe primary headache disorder.
- Epidemiological data on CH prevalence in Brazil is limited.
Purpose of the Study:
- To determine the prevalence of cluster headache (CH) in Barbacena, Minas Gerais, Brazil.
- To provide epidemiological data on CH in a Brazilian urban population.
Main Methods:
- An observational, cross-sectional study was conducted in Barbacena, Brazil.
- 36,145 inhabitants were screened, with 181 health agents completing questionnaires.
- Diagnosis was confirmed by a headache specialist based on International Headache Society criteria.
Main Results:
- 15 patients were diagnosed with cluster headache (CH).
- The prevalence of CH was determined to be 0.0414% or 41.4 per 100,000 inhabitants.
- This prevalence is lower than reported in many international studies.
Conclusions:
- The prevalence of cluster headache in Barbacena is relatively low compared to global figures.
- Further research is needed to understand regional variations in CH prevalence.
Objective:
To determine the prevalence of cluster headache (CH) in Barbacena, a medium-size city in the State of Minas Gerais, Brazil.
Methods:
The total population of Barbacena is 126,284 inhabitants and the Family Health Strategy Program covers 84,610 of them. In order to identify patients with cluster headache, 36,145 of these inhabitants were screened, following which, a questionnaire was completed by 181 health agents distributed throughout the 28 health posts belonging to the Family Health Strategy network. The completed questionnaires were selected based on the clinical criteria established by the International Headache Society, and those patients (18 years of age or older) with a possible CH diagnosis were later assessed by a headache specialist. This was an observational, cross-sectional study.
Results:
In all, 15 patients were diagnosed as having CH, comprising a prevalence of 0.0414%; or 41.4/100,000 inhabitants.
Conclusion:
The prevalence of cluster headache in Barbacena was lower than that observed in many locations worldwide.
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