Traumatic brain injury in Brazil: a comparative analysis between deaths and hospitalizations from 2015 to 2019
Background: Traumatic brain injury (TBI) is a type of head injury with great relevance to the health service, affecting an average of 100,000 Brazilians/year. It’s one of the main causes of trauma morbidity and mortality, becoming an important public health problem. Objectives: Analyze the evolution of deaths, mortality rate (MR) and hospitalizations by TBI in Brazil during 2015-2019. Methods: An epidemiological, retrospective, descriptive study was carried out, using data from the Information Technology Department of the Unified Health System (DATASUS), during 2015-2019. Results: 514,666 hospitalizations and 48,554 deaths from TBI were reported during 2015-2019 in Brazil. In hospitalizations, the year with the highest records was 2015 (20.8%, n=106,980), while the lowest was 2019 (18.3%, n=94,055). There was a progressive reduction in hospitalizations in the period, with a decrease of 12.1% of hospitalizations in the interval. The number of deaths varied from year to year, with peak prevalence in 2016 (21.1%, n=10,264), and a progressive reduction after that year about 15.3% until 2019 (17.9%, n=8,691). Most deaths occurred in the Southeast (45.6%, n=22,144), while the Midwest (6.5%, n=3,169) registered lower rates. However, the highest MR recorded was in the North (MR=6.9), exceeding the national average (MR=6.3) in the period, while the lowest belonged to the South (MR=6.1). Conclusion: Despite the variations between 2015-2019, there was a decrease in deaths and hospitalizations in the period. Deaths were concentrated in Southeast, however, the largest MR was in the North.