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0249/2025 - The Effect of Seasonality on Burn Mortality in Brazil: A Population-Based Study
Efeito da Sazonalidade na mortalidade por queimaduras no Brasil: estudo de base populacional

Author:

• Sérgio Eduardo Soares Fernandes - Fernandes, SES - <sergioesf001@gmail.com>
ORCID: https://orcid.org/0000-0002-2511-400X

Co-author(s):

• Derek Chaves Lopes - Lopes, DC - <derek.lopes5@gmail.com>
ORCID: https://orcid.org/0000-0002-4382-2528
• Erik Teixeira Lopes - Lopes, ET - <erik.lopes@algoritmi.uminho.pt>
ORCID: https://orcid.org/0000-0001-5034-8433
• Fábio Ferreira Amorim - Amorim, FF - <ffamorim@gmail.com>
ORCID: https://orcid.org/0000-0003-0929-5733
• Jose Adorno - Adorno, J - <adornog@gmail.com>
ORCID: https://orcid.org/0000-0002-4966-8859
• Luiz Philipe Molina Vana - Vana, LPM - <philipe@uol.com.br>
ORCID: https://orcid.org/0000-0002-7305-8399
• Edgar Merchan-Hamann - Merchan-Hamann, E - <merchan.hamann@gmail.com>
ORCID: https://orcid.org/0000-0001-6775-9466


Abstract:

INTRODUCTION: Burns are a complex trauma, caused by various agents and associated with multiple implications. Although mortality data are available, studies examining their seasonal patterns are lacking. OBJECTIVE: This study aims to describe the seasonal pattern of burn-related mortality in Brazil between the years 2000 and 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. RESULTS: An increase in burn-related mortality is observed during rainy periods, with the most significant impact in the Southeast and Northeast regions. 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 both annual and weekly levels. Factors such as electrical infrastructure, occupational activities, and demographic indicators may help explain these trends. CONCLUSION: This study has the potential to enhance prevention strategies and guide the allocation of resources for burn treatment, as well as to encourage further research into other factors associated with burn mortality.

Keywords:

Burns; Health Information Systems; Seasons; Mortality

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Fernandes, SES, Lopes, DC, Lopes, ET, Amorim, FF, Adorno, J, Vana, LPM, Merchan-Hamann, E. The Effect of Seasonality on Burn Mortality in Brazil: A Population-Based Study. Cien Saude Colet [periódico na internet] (2025/Jul). [Citado em 05/12/2025]. Está disponível em: http://cienciaesaudecoletiva.com.br/en/articles/the-effect-of-seasonality-on-burn-mortality-in-brazil-a-populationbased-study/19725



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