Socioeconomic and geographic inequalities in headache disability in Brazil: The 2019 National Health Survey
Arão Belitardo Oliveira, Isabela M. Benseñor, Alessandra C. Goulart, Juliane Prieto Peres Mercante, Mário Fernando Prieto Peres
Abstract
OBJECTIVE: To map the socioeconomic and geographic inequalities in headache disability in Brazil. BACKGROUND: Headache disability and its social determinants are poorly investigated in Brazil. METHODS: This is a secondary, cross-sectional analysis of the 2019 National Health Survey database, a representative sample of the Brazilian population. Working-aged Brazilians (aged ≥14 years) were included in the analyses (n = 225,563). Headache disability was inquired through questions on the number of days the respondent was unable to perform customary daily activities in the past 2 weeks. Proportion estimates and the mean days lost were compared between socioeconomic categories. Sample weights were used. RESULTS: Among 14 disease-related disability groups, headache disability (n = 1228) was the second most prevalent disability in adolescents and fifth among adults aged <50 years. In the headache disability sample, there was a higher proportion of females at 72.4% (95% confidence interval [CI] 68.5%-75.9%), with a mean (95% CI) age of 41.1 (40.1-42.0) years and days lost due to disability of 3.4 (3.2-3.6) days. The sociodemographic distribution across income strata (quartiles) of the headache disability sample showed the highest proportions at the lowest income quartile in the Northeast region (15.4%, 95% CI 12.8%-18.4%), for people of Brown color (17.5%, 95% CI 14.7%-20.7%), and with the lowest education level (l3.6%, 95% CI 11.3%-16.2%). Black people, those from the North region, and those with the lowest education level had more days lost than White people (mean [95% CI] 4.1 [3.5-4.6] vs. 3.1 [2.8-3.4] days, p = 0.008), those from the Southeast region (mean [95% CI] 3.8 [3.4-4.2] vs. 2.8 [2.4-3.3] days, p = 0.022), and people with the highest education level (mean [95% CI] 3.9 [3.6-4.2] vs. 2.8 [2.3-3.3] days, p = 0.005), respectively. CONCLUSION: In Brazil, headache disability is one of the leading causes of disability and it is characterized by socioeconomic inequalities.