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Guimarães Ribeiro A, Ferlay J, Vaccarella S, Dias de Oliveira Latorre MDR, Tavares Guerreiro Fregnani JH, Bray F. Ethnic disparities in cancer mortality in the capital and northeast of the State of São Paulo, Brazil 2001-17. Cancer Causes Control 2024; 35:523-529. [PMID: 37917366 DOI: 10.1007/s10552-023-01812-w] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/21/2023] [Accepted: 10/04/2023] [Indexed: 11/04/2023]
Abstract
PURPOSE There is a paucity of studies investigating cancer disparities in groups defined by ethnicity in transitioning economies. We examined the influence of ethnicity on mortality for the leading cancer types in São Paulo, Brazil, comparing patterns in the capital and the northeast of the state. METHODS Cancer deaths were obtained from a Brazilian public government database for the Barretos region (2003-2017) and the municipality of São Paulo (2001-2015). Age-standardized rates (ASR) per 100,000 persons-years, by cancer type and sex, for five self-declared racial classifications (white, black, eastern origin (Asian), mixed ethnicity (pardo), and indigenous Brazilians), were calculated using the world standard population. RESULTS Black Brazilians had higher mortality rates for most common cancer types in Barretos, whereas in São Paulo, white Brazilians had higher rates of mortality from breast, colorectal, and lung cancer. In both regions, lung cancer was the leading cause of cancer death among white, black, and pardo Brazilians, with colorectal cancer deaths leading among Asian Brazilians. Black and pardo Brazilians had higher cervical cancer mortality rates than white Brazilians. CONCLUSION There are substantial disparities in mortality from different cancers in São Paulo according to ethnicity, pointing to inequities in access to health care services.
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Affiliation(s)
- Adeylson Guimarães Ribeiro
- Cancer Surveillance Branch, International Agency for Research On Cancer, 25 Avenue Tony Garnier, CS 90627, 69366, Lyon Cedex 07, France.
- Educational and Research Institute, Barretos Cancer Hospital, Barretos, Brazil.
| | - Jacques Ferlay
- Cancer Surveillance Branch, International Agency for Research On Cancer, 25 Avenue Tony Garnier, CS 90627, 69366, Lyon Cedex 07, France
| | - Salvatore Vaccarella
- Cancer Surveillance Branch, International Agency for Research On Cancer, 25 Avenue Tony Garnier, CS 90627, 69366, Lyon Cedex 07, France
| | | | | | - Freddie Bray
- Cancer Surveillance Branch, International Agency for Research On Cancer, 25 Avenue Tony Garnier, CS 90627, 69366, Lyon Cedex 07, France
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Lemos LLP, Souza MC, Guerra AA, Piazza T, Araújo RM, Cherchiglia ML. Racial disparities in breast cancer survival after treatment initiation in Brazil: a nationwide cohort study. Lancet Glob Health 2024; 12:e292-e305. [PMID: 38245117 DOI: 10.1016/s2214-109x(23)00521-1] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/28/2021] [Revised: 10/24/2023] [Accepted: 10/31/2023] [Indexed: 01/22/2024]
Abstract
BACKGROUND Breast cancer is a public health priority in Brazil and ensuring equity in health care is one of the cancer control plan goals. Our aim was to present the first assessment on the influence of race or skin colour on breast cancer survival at the national level. METHODS In this nationwide cohort study, data on women who initiated treatment for breast cancer in the public health-care system (Sistema Unico de Saúde), Brazil, were assembled through record linkage of administrative and mortality information systems. The administrative information systems were the Outpatient Information System (data from high complexity procedure authorisations) and the Hospital Information System (data from hospitalisation authorisations). We included women aged 19 years or older who started treatment between Jan 1, 2008, and Nov 30, 2010; self-identified as having White, Black, or Brown race or skin colour; had tumour stage I-IV; and were treated with chemotherapy or radiotherapy, or both. Patients were followed up until Dec 31, 2015. Patients with only hormone therapy records or who underwent only surgery were excluded. The Kaplan-Meier method was used to estimate crude overall survival for race or skin colour by time since treatment initiation, and Cox regression to estimate all-cause mortality hazard ratios (HRs) before and after adjustment for other covariates. FINDINGS We identified 59 811 women treated for stage I-IV breast cancer. 37 318 (62·4%) women identified themselves as White, 18 779 (31·4%) as Brown, and 3714 (6·2%) as Black. 5-year overall survival probability was higher for White women (74% [95% CI 73-74]) than Black women (64% [62-65]; p<0·0001). In adjusted regression models stratified by the absence of hormone therapy, Black women had a 24% (HR 1·24 [95% CI 1·16-1·34]; p<0·0001) higher risk of all-cause death than White women, and in the presence of hormone therapy Black women had a 25% (1·25 [1·14-1·38]; p<0·0001) higher risk of all-cause death than White women. INTERPRETATION Black skin colour was identified as a statistically significant risk marker for lower 5-year survival probability and higher risk of all-cause death among women treated for breast cancer by the Sistema Unico de Saúde. Actions to understand and mitigate this unfair difference in health results are urgently needed. FUNDING Conselho Nacional de Desenvolvimento Científico e Tecnológico and Coordenação de Aperfeiçoamento de Pessoal de Nível Superior and Pró-Reitoria de Pesquisa da Universidade Federal de Minas Gerais.
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Affiliation(s)
- Lívia Lovato Pires Lemos
- Programa de Pós-Graduação em Saúde Pública, Faculdade de Medicina, Universidade Federal de Minas Gerais, Belo Horizonte, Brazil.
| | - Mirian Carvalho Souza
- Divisão de Pesquisa Populacional, Coordenação de Prevenção e Vigilância, Instituto Nacional de Câncer, Ministério da Saúde, Rio de Janeiro, Brazil
| | - Augusto Afonso Guerra
- Programa de Pós-Graduação em Medicamentos e Assistência Farmacêutica, Faculdade de Farmácia, Universidade Federal de Minas Gerais, Belo Horizonte, Brazil
| | - Thais Piazza
- Programa de Pós-Graduação em Saúde Pública, Faculdade de Medicina, Universidade Federal de Minas Gerais, Belo Horizonte, Brazil
| | - Rodrigo Moura Araújo
- Hospital do Câncer III - Oncologia Clínica, Instituto Nacional de Câncer, Ministério da Saúde, Rio de Janeiro, Brazil
| | - Mariangela Leal Cherchiglia
- Programa de Pós-Graduação em Saúde Pública, Faculdade de Medicina, Universidade Federal de Minas Gerais, Belo Horizonte, Brazil
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Monteiro dos Santos D, Libonati R, Garcia BN, Geirinhas JL, Salvi BB, Lima e Silva E, Rodrigues JA, Peres LF, Russo A, Gracie R, Gurgel H, Trigo RM. Twenty-first-century demographic and social inequalities of heat-related deaths in Brazilian urban areas. PLoS One 2024; 19:e0295766. [PMID: 38265975 PMCID: PMC10807764 DOI: 10.1371/journal.pone.0295766] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/11/2023] [Accepted: 11/28/2023] [Indexed: 01/26/2024] Open
Abstract
Population exposure to heat waves (HWs) is increasing worldwide due to climate change, significantly affecting society, including public health. Despite its significant vulnerabilities and limited adaptation resources to rising temperatures, South America, particularly Brazil, lacks research on the health impacts of temperature extremes, especially on the role played by socioeconomic factors in the risk of heat-related illness. Here, we present a comprehensive analysis of the effects of HWs on mortality rates in the 14 most populous urban areas, comprising approximately 35% of the country's population. Excess mortality during HWs was estimated through the observed-to-expected ratio (O/E) for total deaths during the events identified. Moreover, the interplay of intersectionality and vulnerability to heat considering demographics and socioeconomic heterogeneities, using gender, age, race, and educational level as proxies, as well as the leading causes of heat-related excess death, were assessed. A significant increase in the frequency was observed from the 1970s (0-3 HWs year-1) to the 2010s (3-11 HWs year-1), with higher tendencies in the northern, northeastern, and central-western regions. Over the 2000-2018 period, 48,075 (40,448-55,279) excessive deaths were attributed to the growing number of HWs (>20 times the number of landslides-related deaths for the same period). Nevertheless, our event-based surveillance analysis did not detect the HW-mortality nexus, reinforcing that extreme heat events are a neglected disaster in Brazil. Among the leading causes of death, diseases of the circulatory and respiratory systems and neoplasms were the most frequent. Critical regional differences were observed, which can be linked to the sharp North-South inequalities in terms of socioeconomic and health indicators, such as life expectancy. Higher heat-related excess mortality was observed for low-educational level people, blacks and browns, older adults, and females. Such findings highlight that the strengthening of primary health care combined with reducing socioeconomic, racial, and gender inequalities represents a crucial step to reducing heat-related deaths.
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Affiliation(s)
| | - Renata Libonati
- Departamento de Meteorologia, Universidade Federal do Rio de Janeiro, Rio de Janeiro, Brazil
- Universidade de Lisboa, Faculdade de Ciências, Instituto Dom Luiz, Lisbon, Portugal
- Forest Research Centre, School of Agriculture, University of Lisbon, Lisbon, Portugal
| | - Beatriz N. Garcia
- Departamento de Meteorologia, Universidade Federal do Rio de Janeiro, Rio de Janeiro, Brazil
| | - João L. Geirinhas
- Universidade de Lisboa, Faculdade de Ciências, Instituto Dom Luiz, Lisbon, Portugal
| | - Barbara Bresani Salvi
- Escola Nacional de Saúde Pública Sergio Arouca - ENSP/ Fiocruz - Programa de Pós Graduação em Saúde Pública e Meio Ambiente
| | - Eliane Lima e Silva
- Departamento de Geografia, Universidade de Brasilia, Distrito Federal, Brazil
- LMI Sentinela, International Joint Laboratory “Sentinela” (Fiocruz, UnB, IRD), Distrito Federal, Brazil
| | - Julia A. Rodrigues
- Departamento de Meteorologia, Universidade Federal do Rio de Janeiro, Rio de Janeiro, Brazil
| | - Leonardo F. Peres
- Departamento de Meteorologia, Universidade Federal do Rio de Janeiro, Rio de Janeiro, Brazil
| | - Ana Russo
- Universidade de Lisboa, Faculdade de Ciências, Instituto Dom Luiz, Lisbon, Portugal
| | - Renata Gracie
- Instituto de Comunicação e Informação Científica e Tecnológica em Saúde - ICICT/Fiocruz Rio de Janeiro, Rio de Janeiro, Brazil
| | - Helen Gurgel
- Departamento de Geografia, Universidade de Brasilia, Distrito Federal, Brazil
- LMI Sentinela, International Joint Laboratory “Sentinela” (Fiocruz, UnB, IRD), Distrito Federal, Brazil
| | - Ricardo M. Trigo
- Departamento de Meteorologia, Universidade Federal do Rio de Janeiro, Rio de Janeiro, Brazil
- Universidade de Lisboa, Faculdade de Ciências, Instituto Dom Luiz, Lisbon, Portugal
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Góes EF, Guimarães JMN, Almeida MDCC, Gabrielli L, Katikireddi SV, Campos AC, Matos SMA, Patrão AL, Oliveira Costa ACD, Quaresma M, Leyland AH, Barreto ML, Dos-Santos-Silva I, Aquino EML. The intersection of race/ethnicity and socioeconomic status: inequalities in breast and cervical cancer mortality in 20,665,005 adult women from the 100 Million Brazilian Cohort. ETHNICITY & HEALTH 2024; 29:46-61. [PMID: 37642313 DOI: 10.1080/13557858.2023.2245183] [Citation(s) in RCA: 1] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Subscribe] [Scholar Register] [Received: 12/20/2022] [Accepted: 08/01/2023] [Indexed: 08/31/2023]
Abstract
OBJECTIVES There is limited evidence regarding the impact of race/racism and its intersection with socioeconomic status (SES) on breast and cervical cancer, the two most common female cancers globally. We investigated racial inequalities in breast and cervical cancer mortality and whether SES (education and household conditions) interacted with race/ethnicity. DESIGN The 100 Million Brazilian Cohort data were linked to the Brazilian Mortality Database, 2004-2015 (n = 20,665,005 adult women). We analysed the association between self-reported race/ethnicity (White/'Parda'(Brown)/Black/Asian/Indigenous) and cancer mortality using Poisson regression, adjusting for age, calendar year, education, household conditions and area of residence. Additive and multiplicative interactions were assessed. RESULTS Cervical cancer mortality rates were higher among Indigenous (adjusted Mortality rate ratio = 1.80, 95%CI 1.39-2.33), Asian (1.63, 1.20-2.22), 'Parda'(Brown) (1.27, 1.21-1.33) and Black (1.18, 1.09-1.28) women vs White women. Breast cancer mortality rates were higher among Black (1.10, 1.04-1.17) vs White women. Racial inequalities in cervical cancer mortality were larger among women of poor household conditions, and low education (P for multiplicative interaction <0.001, and 0.02, respectively). Compared to White women living in completely adequate (3-4) household conditions, the risk of cervical cancer mortality in Black women with 3-4, 1-2, and none adequate conditions was 1.10 (1.01-1.21), 1.48 (1.28-1.71), and 2.03 (1.56-2.63), respectively (Relative excess risk due to interaction-RERI = 0.78, 0.18-1.38). Among 'Parda'(Brown) women the risk was 1.18 (1.11-1.25), 1.68 (1.56-1.81), and 1.84 (1.63-2.08), respectively (RERI = 0.52, 0.16-0.87). Compared to high-educated White women, the risk in high-, middle- and low-educated Black women was 1.14 (0.83-1.55), 1.93 (1.57-2.38) and 2.75 (2.33-3.25), respectively (RERI = 0.36, -0.05-0.77). Among 'Parda'(Brown) women the risk was 1.09 (0.91-1.31), 1.99 (1.70-2.33) and 3.03 (2.61-3.52), respectively (RERI = 0.68, 0.48-0.88). No interactions were found for breast cancer. CONCLUSION Low SES magnified racial inequalities in cervical cancer mortality. The intersection between race/ethnicity, SES and gender needs to be addressed to reduce racial health inequalities.
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Affiliation(s)
- Emanuelle F Góes
- Centre for Data and Knowledge Integration for Health (CIDACS), Gonçalo Moniz Institute, Oswaldo Cruz Foundation, Bahia, Brazil
| | - Joanna M N Guimarães
- Centre for Data and Knowledge Integration for Health (CIDACS), Gonçalo Moniz Institute, Oswaldo Cruz Foundation, Bahia, Brazil
| | | | - Ligia Gabrielli
- Centro de Diabetes e Endocrinologia da Bahia, Secretaria de Saúde do Estado da Bahia, Bahia, Brazil
- Instituto de Saúde Coletiva, Universidade Federal da Bahia, Salvador, Brazil
| | | | - Ana Clara Campos
- Centre for Data and Knowledge Integration for Health (CIDACS), Gonçalo Moniz Institute, Oswaldo Cruz Foundation, Bahia, Brazil
| | | | - Ana Luísa Patrão
- Center for Psychology, Faculty of Psychology and Education Science, University of Porto, Porto, Portugal
| | | | - Manuela Quaresma
- Faculty of Epidemiology and Population Health, London School of Hygiene & Tropical Medicine, London, UK
| | - Alastair H Leyland
- MRC/CSO Social & Public Health Sciences Unit, University of Glasgow, Glasgow, UK
| | - Mauricio L Barreto
- Centre for Data and Knowledge Integration for Health (CIDACS), Gonçalo Moniz Institute, Oswaldo Cruz Foundation, Bahia, Brazil
- Instituto de Saúde Coletiva, Universidade Federal da Bahia, Salvador, Brazil
| | - Isabel Dos-Santos-Silva
- Faculty of Epidemiology and Population Health, London School of Hygiene & Tropical Medicine, London, UK
| | - Estela M L Aquino
- Instituto de Saúde Coletiva, Universidade Federal da Bahia, Salvador, Brazil
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Xavier FD, de Farias DLC, Neto AEH, Ribeiro GN, de Araujo MAS, Carneiro TX, Baiocchi OCCG. Current perspectives on the management of refractory or relapsed classic hodgkin lymphoma in brazil: Balancing efficacy, safety, and tolerability. Oncotarget 2023; 14:977-994. [PMID: 38085126 PMCID: PMC10715043 DOI: 10.18632/oncotarget.28541] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/17/2023] [Accepted: 11/06/2023] [Indexed: 12/18/2023] Open
Abstract
Classic Hodgkin lymphoma (CHL), which accounts for 90-95% of all cases of Hodgkin lymphoma, is the most frequent cancer in adolescents and the most frequent lymphoma in adolescents and young adults. Despite progressive improvements over past decades and the general sensitivity of CHL to frontline chemotherapy, approximately 10-15% of patients have refractory disease that either does not respond to such therapy or progresses after an initial partial response. In patients with refractory or relapsed disease, standard treatment until recently consisted mainly of salvage chemotherapy, in many cases followed by high-dose chemotherapy and autologous stem-cell transplantation. However, improved understanding of the pathobiology of CHL, coupled with the introduction of novel agents, has markedly changed the treatment landscape in the past decade. Although refractory or relapsed CHL continues to be challenging, the therapeutic landscape is undergoing profound changes brought about by novel agents, particularly brentuximab vedotin and immunotherapy. In this review, we discuss the most salient treatment options for adult patients with refractory or relapsed CHL, with a special focus on the Brazilian healthcare setting, which is constrained by inherent characteristics of this system. In the attempt to balance efficacy, safety and tolerability, practicing physicians must rely on clinical trials and on results from real-world studies, and use their own point of view and experience, as well as patient characteristics and previous therapy, to make treatment decisions for refractory or relapsed CHL.
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Affiliation(s)
- Flávia Dias Xavier
- Hospital Universitário de Brasília-Universidade de Brasília/Ebserh, Brasília, DF, Brazil
- Hospital DF Star, Oncologia D’Or, Rede D’Or, Brasília, DF, Brazil
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Ribeiro AG, Ferlay J, Vaccarella S, Latorre MDRDDO, Fregnani JHTG, Bray F. Cancer inequalities in incidence and mortality in the State of São Paulo, Brazil 2001-17. Cancer Med 2023; 12:16615-16625. [PMID: 37345901 PMCID: PMC10469722 DOI: 10.1002/cam4.6259] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/21/2023] [Revised: 06/02/2023] [Accepted: 06/05/2023] [Indexed: 06/23/2023] Open
Abstract
BACKGROUND Cancer disparities exist between and within countries; we sought to compare cancer-specific incidence and mortality according to area-level socioeconomic status (SES) in the State of São Paulo, Brazil. METHODS Cancer cases diagnosed 2003-2017 in the Barretos region and 2001-2015 in the municipality of São Paulo were obtained from the respective cancer registries. Corresponding cancer deaths were obtained from a Brazilian public government database. Age-standardized rates for all cancer combined and the six most common cancers were calculated by SES quartiles. RESULTS There were 14,628 cancer cases and 7513 cancer deaths in Barretos, and 472,712 corresponding cases and 194,705 deaths in São Paulo. A clear SES-cancer gradient was seen in São Paulo, with rates varying from 188.4 to 333.1 in low to high SES areas, respectively. There was a lesser social gradient for mortality, with rates in low to high SES areas ranging from 86.4 to 98.0 in Barretos, and from 99.2 to 100.1 in São Paulo. The magnitude of the incidence rates rose markedly with increasing SES in São Paulo city for colorectal, lung, female breast, and prostate cancer. Conversely, both cervical cancer incidence and mortality rose with lower levels of SES in both regions. CONCLUSIONS A clear SES association was seen for cancers of the prostate, female breast, colorectum, and lung for São Paulo. This study offers a better understanding of the cancer incidence and mortality profile according to SES within a highly populated Brazilian state.
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Affiliation(s)
- Adeylson Guimarães Ribeiro
- Cancer Surveillance BranchInternational Agency for Research on CancerLyonFrance
- Educational and Research InstituteBarretos Cancer HospitalBarretosBrazil
| | - Jacques Ferlay
- Cancer Surveillance BranchInternational Agency for Research on CancerLyonFrance
| | | | | | | | - Freddie Bray
- Cancer Surveillance BranchInternational Agency for Research on CancerLyonFrance
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Renna Junior NL, Azevedo E Silva GD. Socioeconomic status and cancer survival in Brazil: Analysis of population data from the municipalities of Aracaju and Curitiba, 1996-2012. Cancer Epidemiol 2023; 85:102394. [PMID: 37419053 DOI: 10.1016/j.canep.2023.102394] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/01/2022] [Revised: 05/20/2023] [Accepted: 05/23/2023] [Indexed: 07/09/2023]
Abstract
INTRODUCTION The association between socioeconomic status and cancer prognosis has been demonstrated in several countries. Despite the existence of indirect evidence of this phenomenon in Brazil, few studies in this regard are available. OBJECTIVES The objective of the present study is to analyse socioeconomic related survival gaps for patients diagnosed with breast, cervical, lung, prostate, and colorectal cancer in the cities of Aracaju (SE) and Curitiba (PR). METHODS Using population-based data, we estimated net survival by tumour site, year of diagnosis, socioeconomic status and local of residence. Net survival estimation was done with multilevel parametric model allowing flexible spline functions do estimate excess mortality hazards. RESULTS 28,005 cases were included in survival analysis. Five-year net survival showed positive association with SES. Intermunicipal survival gaps favouring Aracaju where prominent for breast (reaching 16,1% in 5 years) OBJECTIVES: Study the impact of socioeconomic factors on cancer survival in two Brazilian capitals. METHODS Survival analysis using population-based cancer data including patients diagnosed with breast, lung, prostate, cervical and colorectal cancer between 1996 and 2012 in Aracaju and Curitiba. Outcomes were excessive mortality hazard (EMH) and 5- and 8-years net survival (NS). The association of race/skin color and socioeconomic level (SES) with EMH and net survival were analyzed using a multilevel regression model with flexible splines. RESULTS 28,005 cases were included, 6636 from Aracaju and 21,369 from Curitiba. NS for all diseases studied increased more prominently for Curitiba population. We observed NS gap between the populations of Aracaju and Curitiba that increased or remained stable during the study period, with emphasis on the growth of the difference in NS of lung and colon cancer (among men). Only for cervical cancer and prostate cancer there was a reduction in the intermunicipal gaps. 5-year NS for breast cancer in Aracaju ranged from 55.2% to 73.4% according to SES. In Curitiba this variation was from 66.5% to 83.8%. CONCLUSION The results of the present study suggests widening of socioeconomic and regional inequalities in the survival of patients with colorectal, breast, cervical, lung and prostate cancers in Brazil during the 1990 s and 2000 s.
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Mafra A, Bardot A, Charvat H, Weiderpass E, Soerjomataram I, Fregnani JHTG. Cancer survival in the northwestern of São Paulo State, Brazil: A population-based study. Cancer Epidemiol 2023; 83:102339. [PMID: 36863216 DOI: 10.1016/j.canep.2023.102339] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/03/2022] [Revised: 12/26/2022] [Accepted: 02/10/2023] [Indexed: 03/04/2023]
Abstract
BACKGROUND Population-based cancer registry (PBCR) data provide crucial information for evaluating the effectiveness of cancer services and reflect prospects for cure by estimating population-based cancer survival. This study provides long-term trends in survival among patients diagnosed with cancer in the Barretos region (São Paulo State, Brazil). METHODS In this population-based study, we estimated the one- and five-year age-standardized net survival rates of 13,246 patients diagnosed with 24 different cancer types in Barretos region between 2000 and 2018. The results were presented by sex, time since diagnosis, disease stage, and period of diagnosis. RESULTS Marked differences in the one- and five-year age-standardized net survival rates were observed across the cancer sites. Pancreatic cancer had the lowest 5-year net survival (5.5 %, 95 %CI: 2.9-9.4) followed by oesophageal cancer (5.6 %, 95 %CI: 3.0-9.4), while prostate cancer ranked the best (92.1 %, 95 %CI: 87.8-94.9), followed by thyroid cancer (87.4 %, 95 %CI: 69.9-95.1) and female breast cancer (78.3 %, 95 %CI: 74.5-81.6). The survival rates differed substantially according to sex and clinical stage. Comparing the first (2000-2005) and last (2012-2018) periods, cancer survival improved, especially for thyroid, leukemia, and pharyngeal cancers, with differences of 34.4 %, 29.0 %, and 28.7 %, respectively. CONCLUSION To our knowledge, this is the first study to evaluate long-term cancer survival in the Barretos region, showing an overall improvement over the last two decades. Survival varied by site, indicating the need for multiple cancer control actions in the future with a lower burden of cancer.
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Affiliation(s)
- Allini Mafra
- Population-based Cancer Registry of Barretos Region, Barretos Cancer Hospital, Pio XII Foundation, Barretos, 14784-400 Sao Paulo, Brazil; Cancer Surveillance Branch, International Agency for Research on Cancer, 25 Avenue Tony Garnier, 69007 Lyon, France.
| | - Aude Bardot
- Cancer Surveillance Branch, International Agency for Research on Cancer, 25 Avenue Tony Garnier, 69007 Lyon, France.
| | - Hadrien Charvat
- Cancer Surveillance Branch, International Agency for Research on Cancer, 25 Avenue Tony Garnier, 69007 Lyon, France.
| | - Elisabete Weiderpass
- Director's Office, International Agency for Research on Cancer, 25 Avenue Tony Garnier, 69007 Lyon, France.
| | - Isabelle Soerjomataram
- Cancer Surveillance Branch, International Agency for Research on Cancer, 25 Avenue Tony Garnier, 69007 Lyon, France.
| | - José Humberto Tavares Guerreiro Fregnani
- Population-based Cancer Registry of Barretos Region, Barretos Cancer Hospital, Pio XII Foundation, Barretos, 14784-400 Sao Paulo, Brazil; Superintendence of Education and Research, A.C. Camargo Cancer Center, São Paulo 01525-001, Brazil.
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