The effect of seasonality on burn mortality in Brazil: a population-based study

This study aims to describe the seasonal pattern of burn-related mortality in Brazil from 2000 to 2022, using data from the Mortality Information System (SIM). Additionally, the study examines the place of occurrence and compares seasonality across different etiologies, months, and days of the week. It also evaluates the risk of death by etiology and the attributable risk of seasonality across the different regions of the country. An increase in burn-related mortality is observed during rainy periods, with the most significant impact in the Southeast and Northeast. The daily risk of death from thermal burns is substantially higher in the Southeast. Mortality peaks in January and February, with a decline in June. Thermal and electrical burns display distinct seasonal patterns at annual and weekly levels. Factors such as electrical infrastructure, occupational activities, and demographic indicators may help explain these trends. This study can enhance prevention strategies and guide the allocation of resources for burn treatment, as well as encourage further research into other factors associated with burn mortality.