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Chronic daily headache in Brazil: a nationwide population-based study
L P Queiroz1, M F P Peres, F Kowacs
1Universidade Federal de Santa Catarina, Florianópolis, Brazil. lpqueiroz@floripa.com.br
Cephalalgia : an International Journal of Headache
|August 30, 2008
Summary
Chronic daily headache (CDH) affects 6.9% of Brazilian adults. This common headache disorder is more prevalent in women, the unemployed, and those with higher incomes or who don't exercise.
Area of Science:
- Epidemiology
- Neurology
- Public Health
Background:
- Chronic daily headache (CDH) represents a significant public health concern globally.
- Understanding the prevalence and associated factors of CDH is crucial for targeted interventions.
Purpose of the Study:
- To estimate the 1-year prevalence of chronic daily headache (CDH) in the adult population of Brazil.
- To determine the association between CDH and sociodemographic characteristics.
Main Methods:
- A cross-sectional, population-based study utilizing telephone interviews.
- 3848 adults aged 18-79 years were randomly selected across Brazil's 27 states.
- Prevalence ratios adjusted by Poisson regression were used to assess associations.
Main Results:
- The estimated 1-year prevalence of CDH was 6.9%.
- CDH was significantly more prevalent in women (2.4 times), the unemployed (1.72 times), individuals with high household income (1.63 times), and those who do not exercise (2 times).
Conclusions:
- The overall prevalence of CDH in Brazil is substantial.
- Specific sociodemographic factors, including gender, employment status, income, and physical activity, are significantly associated with CDH.
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