Conflict of Interest: None
A Nationwide Population-Based Study of Tension-Type Headache in Brazil
Article first published online: 12 SEP 2008
© 2008 the Authors. Journal compilation © 2008 American Headache Society
Headache: The Journal of Head and Face Pain
Volume 49, Issue 1, pages 71–78, January 2009
How to Cite
Queiroz, L. P., Peres, M. F.P., Piovesan, E. J., Kowacs, F., Ciciarelli, M. C., Souza, J. A. and Zukerman, E. (2009), A Nationwide Population-Based Study of Tension-Type Headache in Brazil. Headache: The Journal of Head and Face Pain, 49: 71–78. doi: 10.1111/j.1526-4610.2008.01227.x
- Issue published online: 5 JAN 2009
- Article first published online: 12 SEP 2008
- Accepted for publication June 19, 2008.
- associated factor;
- tension-type headache
Objectives.— To estimate the 1-year prevalence of tension-type headache (TTH) and the degree of the association of TTH with some sociodemographic characteristics of a representative sample of the adult population of Brazil.
Methods.— This was an observational, cross-sectional, population-based study. We conducted telephone interviews on 3848 people, aged 18-79 years, randomly selected from the 27 states of Brazil. Trained lay interviewers administered the structured questionnaire. It included questions about the sociodemographic characteristics of the population, as well as questions about headache. The degree of the association was calculated through prevalence ratios, adjusted with Poisson regression by gender, age, years of education, marital status, household income, job status, body mass index (BMI), and physical exercise.
Results.— The estimated 1-year gender- and-age-adjusted prevalence of TTH was 13.0% (95% CI: 11.8-14.2%); 15.4% in males and 9.5% in females. The prevalence of probable TTH was 22.6% (95% CI: 21.1-24.1%). Most (86.2%) subjects reported episodic TTH; 6.4% had chronic TTH. The prevalence was higher at 18-29 years of age (16.2%). TTH was 1.6 times more prevalent in men, and 1.54 times more in subjects with more than 11 years of education. There was no significant association of TTH with marital or job status, household income, BMI, and physical activity.
Conclusion.— This is the first nationwide epidemiological study of TTH in Brazil. The overall prevalence of TTH in Brazil is low, at 13%. TTH is significantly more prevalent in males and subjects with higher education level.