Inequalities in the burden of female breast cancer in Brazil, 1990–2017

Abstract Background Breast cancer is the most frequently diagnosed cancer in women and the leading cause of cancer death among females worldwide. In recent decades, breast cancer death rates have been stable or decreasing in more developed regions; however, this has not been observed in less develop...

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Main Authors: Maximiliano Ribeiro Guerra, Mário Círio Nogueira, Deborah Carvalho Malta, Camila Soares Lima Côrrea, Maria de Fatima Marinho de Souza, Maria Paula Curado, Mariana Santos Felisbino-Mendes, Meghan Mooney, Mohsen Naghavi, Maria Teresa Bustamante-Teixeira
Format: Article
Language:English
Published: BMC 2020-09-01
Series:Population Health Metrics
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Online Access:http://link.springer.com/article/10.1186/s12963-020-00212-5
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author Maximiliano Ribeiro Guerra
Mário Círio Nogueira
Deborah Carvalho Malta
Camila Soares Lima Côrrea
Maria de Fatima Marinho de Souza
Maria Paula Curado
Mariana Santos Felisbino-Mendes
Meghan Mooney
Mohsen Naghavi
Maria Teresa Bustamante-Teixeira
author_facet Maximiliano Ribeiro Guerra
Mário Círio Nogueira
Deborah Carvalho Malta
Camila Soares Lima Côrrea
Maria de Fatima Marinho de Souza
Maria Paula Curado
Mariana Santos Felisbino-Mendes
Meghan Mooney
Mohsen Naghavi
Maria Teresa Bustamante-Teixeira
author_sort Maximiliano Ribeiro Guerra
collection DOAJ
description Abstract Background Breast cancer is the most frequently diagnosed cancer in women and the leading cause of cancer death among females worldwide. In recent decades, breast cancer death rates have been stable or decreasing in more developed regions; however, this has not been observed in less developed regions. This study aims to evaluate inequalities in the burden of female breast cancer in Brazil including an analysis of interregional and interstate patterns in incidence, mortality and disability-adjusted life years (DALYs) rates from 1990 to 2017, and mortality-to-incidence ratio (MIR), and their association with the Socio-demographic Index (SDI). Methods Using estimates from the global burden of disease (GBD) study, we applied a spatial exploratory analysis technique to obtain measurements of global and local spatial correlation. Percentage changes of breast cancer incidence, mortality, and DALYs rates between 1990 and 2017 were calculated, and maps were developed to show the spatial distribution of the variables. Spatial panel models were adjusted to investigate the association between rates and SDI in Brazilian states. Results In Brazil, while breast cancer mortality rate have had modest reduction (−4.45%; 95% UI: −6.97; −1.76) between 1990 and 2017, the incidence rate increased substantially (+39.99%; 95% UI: 34.90; 45.39). Breast cancer incidence and mortality rates in 1990 and 2017 were higher in regions with higher SDI, i.e., the most developed ones. While SDI increased in all Brazilian states between 1990 and 2017, notably in less developed regions, MIR decreased, more notably in more developed regions. The SDI had a positive association with incidence rate and a negative association with MIR. Conclusion Such findings suggest an improvement in breast cancer survival in the period, which may be related to a broader access to diagnostic methods and treatment. This study also revealed the inequality in breast cancer outcomes among Brazilian states and may guide public policy priorities for disease control in the country.
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spelling doaj.art-dd12dc93f36d4041adc6973c863b55702022-12-22T01:15:13ZengBMCPopulation Health Metrics1478-79542020-09-0118S111310.1186/s12963-020-00212-5Inequalities in the burden of female breast cancer in Brazil, 1990–2017Maximiliano Ribeiro Guerra0Mário Círio Nogueira1Deborah Carvalho Malta2Camila Soares Lima Côrrea3Maria de Fatima Marinho de Souza4Maria Paula Curado5Mariana Santos Felisbino-Mendes6Meghan Mooney7Mohsen Naghavi8Maria Teresa Bustamante-Teixeira9Graduate Program in Public Health, Universidade Federal de Juiz de Fora (UFJF)Graduate Program in Public Health, Universidade Federal de Juiz de Fora (UFJF)Department of Maternal and Child Nursing and Public Health, Nursing School, Universidade Federal de Minas Gerais (UFMG)Graduate Program in Public Health, Universidade Federal de Juiz de Fora (UFJF)Graduate Program of the Preventive Medicine Department, Medical School, Universidade Federal de Minas Gerais (UFMG)AC Camargo Cancer Center, AC Camargo HospitalDepartment of Maternal and Child Nursing and Public Health, Nursing School, Universidade Federal de Minas Gerais (UFMG)Institute for Health Metrics and Evaluation (IHME), University of WashingtonInstitute for Health Metrics and Evaluation (IHME), University of WashingtonGraduate Program in Public Health, Universidade Federal de Juiz de Fora (UFJF)Abstract Background Breast cancer is the most frequently diagnosed cancer in women and the leading cause of cancer death among females worldwide. In recent decades, breast cancer death rates have been stable or decreasing in more developed regions; however, this has not been observed in less developed regions. This study aims to evaluate inequalities in the burden of female breast cancer in Brazil including an analysis of interregional and interstate patterns in incidence, mortality and disability-adjusted life years (DALYs) rates from 1990 to 2017, and mortality-to-incidence ratio (MIR), and their association with the Socio-demographic Index (SDI). Methods Using estimates from the global burden of disease (GBD) study, we applied a spatial exploratory analysis technique to obtain measurements of global and local spatial correlation. Percentage changes of breast cancer incidence, mortality, and DALYs rates between 1990 and 2017 were calculated, and maps were developed to show the spatial distribution of the variables. Spatial panel models were adjusted to investigate the association between rates and SDI in Brazilian states. Results In Brazil, while breast cancer mortality rate have had modest reduction (−4.45%; 95% UI: −6.97; −1.76) between 1990 and 2017, the incidence rate increased substantially (+39.99%; 95% UI: 34.90; 45.39). Breast cancer incidence and mortality rates in 1990 and 2017 were higher in regions with higher SDI, i.e., the most developed ones. While SDI increased in all Brazilian states between 1990 and 2017, notably in less developed regions, MIR decreased, more notably in more developed regions. The SDI had a positive association with incidence rate and a negative association with MIR. Conclusion Such findings suggest an improvement in breast cancer survival in the period, which may be related to a broader access to diagnostic methods and treatment. This study also revealed the inequality in breast cancer outcomes among Brazilian states and may guide public policy priorities for disease control in the country.http://link.springer.com/article/10.1186/s12963-020-00212-5Breast neoplasmIncidenceMortalityGlobal burden
spellingShingle Maximiliano Ribeiro Guerra
Mário Círio Nogueira
Deborah Carvalho Malta
Camila Soares Lima Côrrea
Maria de Fatima Marinho de Souza
Maria Paula Curado
Mariana Santos Felisbino-Mendes
Meghan Mooney
Mohsen Naghavi
Maria Teresa Bustamante-Teixeira
Inequalities in the burden of female breast cancer in Brazil, 1990–2017
Population Health Metrics
Breast neoplasm
Incidence
Mortality
Global burden
title Inequalities in the burden of female breast cancer in Brazil, 1990–2017
title_full Inequalities in the burden of female breast cancer in Brazil, 1990–2017
title_fullStr Inequalities in the burden of female breast cancer in Brazil, 1990–2017
title_full_unstemmed Inequalities in the burden of female breast cancer in Brazil, 1990–2017
title_short Inequalities in the burden of female breast cancer in Brazil, 1990–2017
title_sort inequalities in the burden of female breast cancer in brazil 1990 2017
topic Breast neoplasm
Incidence
Mortality
Global burden
url http://link.springer.com/article/10.1186/s12963-020-00212-5
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