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Research Article
Diama Bhadra Vale
Universidade Estadual de Campinas
Corresponding Author
ORCiD: https://orcid.org/0000-0003-2423-0225
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This work is licensed under a CC BY 4.0 License. Read Full License
Purpose To evaluate the influence of race on breast cancer mortality, this work aims to demonstrate the evolution of rates in the state of São Paulo, from 2000 to 2017, contextualizing with other causes of death.
Methods A retrospective cross-sectional time-series study using age and race as variables. Information on deaths was collected from the Ministry of Health Information System. Only white and black/brown categories were used. Mortality rates were age-adjusted by the standard method. For statistical analysis trend-tests were carried out.
Results In the period there were 60,940 deaths registered as breast cancer deaths, 46,365 in white and 10,588 in black women. The rates for 100,000 women in 2017 were 16.46 in white and 9.57 in black women, a trend to reduction in white (p=0.002), and to increase in black women (p=0.010). This effect was more significant for white women (p<0.001). The trend to reduction was consistent in all age-groups in white women, and the trend to increase was observed only in the 40-49 years group in black women. For ‘all-cancer causes’ the trend was to a reduction in white (p=0.031) and to increase in black women (p<0.001). For ‘ill-defined causes’ and ‘external causes’, the trend was to a reduction in both races (p<0.001).
Conclusion Mortality rates due to breast cancer in São Paulo were influenced by race. The divergences observed between white and black women may indicate differentiated access to health resources, contributing to the inequities that exist in the health of the black population in our setting.
Keywords
Breast neoplasms, Mortality, Race/Ethnicity, Racial disparities, Black women, Healthcare Disparities
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This is a preprint, a preliminary version of a manuscript that has not completed peer review at a journal. Research Square does not conduct peer review prior to posting preprints. The posting of a preprint on this server should not be interpreted as an endorsement of its validity or suitability for dissemination as established information or for guiding clinical practice.
Research Article
Diama Bhadra Vale
Universidade Estadual de Campinas
Corresponding Author
ORCiD: https://orcid.org/0000-0003-2423-0225
Badges
Prescreen
This manuscript passed our Prescreen assessment
Complete author information
Appropriate declaration statements
Potential risks to human health
Prescreen
History
CURRENT STATUS: Posted
Version 1
Posted 23 Feb, 2021
No community comments so far
Metrics
Comments: 0
PDF Downloads: ...
HTML Views: ...
Subject Areas
Cancer Biology
License:
This work is licensed under a CC BY 4.0 License. Read Full License
Purpose To evaluate the influence of race on breast cancer mortality, this work aims to demonstrate the evolution of rates in the state of São Paulo, from 2000 to 2017, contextualizing with other causes of death.
Methods A retrospective cross-sectional time-series study using age and race as variables. Information on deaths was collected from the Ministry of Health Information System. Only white and black/brown categories were used. Mortality rates were age-adjusted by the standard method. For statistical analysis trend-tests were carried out.
Results In the period there were 60,940 deaths registered as breast cancer deaths, 46,365 in white and 10,588 in black women. The rates for 100,000 women in 2017 were 16.46 in white and 9.57 in black women, a trend to reduction in white (p=0.002), and to increase in black women (p=0.010). This effect was more significant for white women (p<0.001). The trend to reduction was consistent in all age-groups in white women, and the trend to increase was observed only in the 40-49 years group in black women. For ‘all-cancer causes’ the trend was to a reduction in white (p=0.031) and to increase in black women (p<0.001). For ‘ill-defined causes’ and ‘external causes’, the trend was to a reduction in both races (p<0.001).
Conclusion Mortality rates due to breast cancer in São Paulo were influenced by race. The divergences observed between white and black women may indicate differentiated access to health resources, contributing to the inequities that exist in the health of the black population in our setting.
Figure 1
Figure 2
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