Temporal trends of breast cancer mortality in Brazil between 1980 and 2023
DOI:
https://doi.org/10.29289/2594539420250003Keywords:
breast cancer, mortality, Brazil, epidemiologyAbstract
Introduction: Breast cancer (BC) is a neoplasm that represents one of the most prevalent and heterogeneous malignancies affecting individuals worldwide. Its epidemiological trends present important variations across periods and regions. Acquiring knowledge about BC is essential for promoting targeted interventions and effective public policies. The aim of this study was to evaluate the temporal trends and regional disparities of BC mortality in Brazil between 1980 and 2023. Methods: This ecological study analyzed temporal trends in BC mortality in Brazil using age-adjusted annual mortality rates from 1980 to 2023. Mortality data were obtained from the DATASUS. Data analysis included descriptive statistics using R 4.4.2®, with temporal trends assessed via annual percentage change (APC) calculated using Joinpoint 5.0®. APCs were adjusted for age and demographic variations, with statistical significance determined by 95% confidence intervals (p<0.05). Results: BC mortality in Brazil from 1980 to 2023 showed regional variations. While the Northeast and North experienced steady increases, the Southeast initially rose, declined, and then stabilized. The South followed a rise-decline-rise pattern, and the Midwest consistently increased. Nationally, mortality initially rose, briefly declined, and then increased moderately. Conclusion: This study highlights significant temporal trends in BC mortality across Brazil from 1980 to 2023, revealing notable regional disparities. These findings emphasize the critical need for equitable and region-specific public health strategies and targeted actions to improve BC outcomes and reduce mortality rates regionally and nationwide.
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