Oncology, Epidemiology, Public Health, Environmental and Occupational Health
13
Scopus Publications
Scopus Publications
Quality of life of women who underwent breast cancer treatment relative to sociodemographic, behavioral, and clinical factors Angélica Atala Lombelo Campos, Maria Teresa Bustamante-Teixeira, Rafaela Russi Ervilha, Vivian Assis Fayer, Jane Rocha Duarte Cintra, Renata Mendes de Freitas, Daniela Pereira de Almeida, Maximiliano Ribeiro Guerra Einstein Sao Paulo Brazil, 2024 OBJECTIVE: Patients with cancer often undergo multiple extended treatments that decrease their quality of life. However, the quality of life of women with breast cancer after they undergo treatment remains underexplored in Brazil. Therefore, this study determined sociodemographic, behavioral, and clinical factors related to the post-treatment quality of life of women with breast cancer. METHODS: This cross-sectional study involved 101 women diagnosed with breast cancer between 2014 and 2016 and treated at a Brazilian Oncology Reference Service. Data were collected from them using face-to-face surveys. Quality of life was evaluated using the European Organization for the Research and Treatment of Cancer Core Quality of Life questionnaire (EORTC QLQ-C30) and EORTC Breast Cancer-specific Quality of Life questionnaire (EORTC QLQ-BR23). The data collected were analyzed using Student's t-test and Mann-Whitney U test. RESULTS: The median score on the global health, functional, and symptom scales of the EORTC QLQ-C30 was 75.00 (Interquartile range=33.33), 75.99 (Standard deviation [SD]=19.26), and 19.67 (SD=16.91), respectively. The mean score on the functional and symptom scales of the EORTC QLQ-BR23 was 61.89 (SD=17.21) and 20.12 (SD=16.94), respectively. Furthermore, higher post-treatment quality of life was found to be associated with being aged 50 or more, being Black, having eight or more years of education, having a partner, having a paying job, receiving treatment from the private healthcare system, having a higher income, living in the municipality where healthcare services are availed, engaging in physical activity, not smoking, being more religious, having more social support, not being overweight, having no comorbidities, and undergoing lumpectomy. CONCLUSION: Sociodemographic, behavioral, and clinical factors significantly impact the quality of life of women who undergo breast cancer treatment. Implementing interventions that improve health and reducing inequalities in the access to healthcare services can improve the quality of life of these patients. BACKGROUND: Sociodemographic, clinical, and lifestyle factors impact the quality of life of breast cancer survivors. BACKGROUND: Breast cancer therapy may affect future perspectives and emotional, cognitive, and sexual function. BACKGROUND: Some aspects of quality of life still require attention from health professionals. BACKGROUND: Higher post-treatment quality of life of women with breast cancer is linked to being aged 50 or more, being Black, having 8 or more years of education, having a partner, having a paying job, receiving care from private healthcare, having a high per capita income, residing in the municipality where the service is availed, engaging in physical activity, not smoking, greater religiosity, having more social support, having a normal weight, having no comorbidities, and undergoing lumpectomy.
Breast cancer survival and the health system in Brazil: an analysis of public and private healthcare Adriana de Souza Sérgio Ferreira, Jane Rocha Duarte Cintra, Vívian Assis Fayer, Mário Círio Nogueira, Cassimiro Baesso Júnior, Maria Teresa Bustamante-Teixeira, Alfredo Chaoubah, Arthur Duarte Cintra, Caroline Montes Simão, Maximiliano Ribeiro Guerra Frontiers in Oncology, 2023 BackgroundThe incidence of breast cancer is increasing globally; however, survival outcomes vary and are lower in developing countries.MethodsWe analyzed the 5- and 10-year survival rates for breast cancer according to the type of healthcare insurance (public vs. private) in a referral center for cancer care in the Brazilian southeast region. This hospital-based cohort study included 517 women diagnosed with invasive breast cancer between 2003 and 2005. The Kaplan–Meier method was used to estimate the probability of survival, and the Cox proportional hazards regression model was used to assess prognostic factors.ResultsThe 5- and 10-year breast cancer survival rates were as follows: private healthcare service survival rate of 80.6% (95% CI 75.0–85.0) and 71.5% (95% CI 65.4–77.1), respectively, and public healthcare service survival rate of 68.5% (95% CI 62.5–73.8) and 58.5% (95% CI 52.1–64.4), respectively. The main factors associated with the worst prognosis were lymph node involvement in both healthcare services and tumor size >2 cm only in public health services. The use of hormone therapy (private) and radiotherapy (public) was associated with the best survival rates.ConclusionsThe survival discrepancies found between health services can be explained mainly by the difference in the stage of the disease at the time of diagnosis, indicating inequalities in access to the early detection of breast cancer.
Histological and Immunohistochemical Characteristics for Hereditary Breast Cancer Risk in a Cohort of Brazilian Women Renata Mendes de Freitas, Maximiliano Ribeiro Guerra, Vívian Assis Fayer, Angélica Atala Lombelo Campos, Jane Rocha Duarte Cintra, Joan Warren, Rafaela Russi Ervilha, Camila Damasceno de Paula, Maria Teresa Bustamante-Teixeira Revista Brasileira De Ginecologia E Obstetricia, 2022 Objective The study aimed to characterize the clinical, histological, and immunohistochemical profile of women with invasive breast cancer, according to the risk for Hereditary Predisposition Breast and Ovarian Cancer Syndrome in a Brazilian population. Methods This is a retrospective study performed from a hospital-based cohort of 522 women, diagnosed with breast cancer treated at an oncology referral center in the Southeast region of Brazil, between 2014 and 2016. Results Among the 430 women diagnosed with invasive breast cancer who composed the study population, 127 (29.5%) were classified as at increased risk for hereditary predisposition to breast and ovarian cancer syndrome. There was a lower level of education in patients at increased risk (34.6%) when compared with those at usual risk (46.0%). Regarding tumor characteristics, women at increased risk had higher percentages of the disease diagnosed at an advanced stage (32.3%), and with tumors > 2cm (63.0%), with increased prevalence for both characteristics, when compared with those at usual risk. Furthermore, we found higher percentages of HG3 (43.3%) and Ki-67 ≥ 25% (64.6%) in women at increased risk, with prevalence being about twice as high in this group. The presence of triple-negative tumors was observed as 25.2% in women at increased risk and 6.0% in women at usual risk, with the prevalence of absence of biomarkers being 2.5 times higher among women in the increased risk group. Conclusion From the clinical criteria routinely used in the diagnosis of breast cancer, the care practice of genetic counseling for patients at increased risk of hereditary breast cancer in contexts such as Brazil is still scarce.
Time to diagnosis and treatment for breast cancer in public and private health services Angélica Atala Lombelo Campos, Maximiliano Ribeiro Guerra, Vívian Assis Fayer, Rafaela Russi Ervilha, Jane Rocha Duarte Cintra, Iara Renault de Medeiros, Matheus Calábria da Silveira, Maria Teresa Bustamante-Teixeira Revista Gaucha De Enfermagem, 2022 Objective: To analyze the time to diagnosis and treatment for breast cancer and the associated factors, according to the type of care (public vs. private). Methodology: Retrospective cohort study with 477 women diagnosed with breast cancer between 2014 and 2016. Data were collected in an oncology service in a municipality in Minas Gerais, in the 2018-2019 period. Analyzes were performed using the Kaplan-Meier method and Cox's proportional regression model. Results: The median time to diagnosis was 70 days, being shorter for women who discovered the disease through screening tests and who were diagnosed in early stages of the disease. The median time for treatment was 32 days, which was shorter for women assisted by private health service, with a high level of education and who were diagnosed in early stages. Conclusions: Private care and facilitators of access to breast cancer care were associated with shorter waiting times.
Assessment of a method for automatic match classification in probabilistic data linkage Daniela de Almeida Pereira Duarte, Camila Soares Lima Corrêa, Vívian Assis Fayer, Mário Círio Nogueira, Maria Teresa Bustamante-Teixeira Cadernos De Saude Publica, 2019 Resumo: O objetivo foi testar e avaliar a acurácia de um método para a seleção de escore em relacionamento probabilístico de banco de dados, de forma a viabilizar a automatização da identificação de pares verdadeiros dispensando a etapa de inspeção manual. Estudo de acurácia utilizando dados do Sistema de Informação do Câncer de Mama (SISMAMA) de Minas Gerais, Brasil, de 2009 e 2010. Após o processo de limpeza e padronização, foi realizado o relacionamento probabilístico dos bancos 2009 e 2010 utilizando 16 passos, sendo que cada passo foi inspecionado manualmente para se obter um padrão-ouro. Posteriormente, selecionaram-se amostras que foram inspecionadas e avaliadas para calcular a acurácia do método de seleção dos pares verdadeiros. Todos os passos e amostras com 200 e 300 pares apresentaram alta sensibilidade (recall) > 0,97, alto valor preditivo positivo (precision) > 0,95 e altas acurácia (> 0,97), medida F (> 0,96) e área sob a curva precision-recall (> 0,98). A amostra com 100 pares evidenciou altos valores para essas medidas, porém com escores mais baixos. Dos 16 passos avaliados, o uso de apenas três de forma combinada foi suficiente para identificar 99,24% dos pares verdadeiros no banco total. O método proposto permite automatizar o relacionamento das bases de dados, mantendo a acurácia do método. Facilita a utilização de relacionamento probabilístico no âmbito dos serviços de saúde, especialmente para a vigilância e gestão em saúde.
Inequities in access to mammographic screening in Brazil Mário Círio Nogueira, Vívian Assis Fayer, Camila Soares Lima Corrêa, Maximiliano Ribeiro Guerra, Bianca De Stavola, Isabel dos-Santos-Silva, Maria Teresa Bustamante-Teixeira, Gulnar Azevedo e Silva Cadernos De Saude Publica, 2019 Our objectives with this study were to describe the spatial distribution of mammographic screening coverage across small geographical areas (micro-regions) in Brazil, and to analyze whether the observed differences were associated with spatial inequities in socioeconomic conditions, provision of health care, and healthcare services utilization. We performed an area-based ecological study on mammographic screening coverage in the period of 2010-2011 regarding socioeconomic and healthcare variables. The units of analysis were the 438 health micro-regions in Brazil. Spatial regression models were used to study these relationships. There was marked variability in mammographic coverage across micro-regions (median = 21.6%; interquartile range: 8.1%-37.9%). Multivariable analyses identified high household income inequality, low number of radiologists/100,000 inhabitants, low number of mammography machines/10,000 inhabitants, and low number of mammograms performed by each machine as independent correlates of poor mammographic coverage at the micro-region level. There was evidence of strong spatial dependence of these associations, with changes in one micro-region affecting neighboring micro-regions, and also of geographical heterogeneities. There were substantial inequities in access to mammographic screening across micro-regions in Brazil, in 2010-2011, with coverage being higher in those with smaller wealth inequities and better access to health care.
Mammographic over-screening: Evaluation based on probabilistic linkage of records databases from the breast cancer information system (SISMAMA) Thaís Barbosa Rodrigues, Bianca De Stavola, Maria Teresa Bustamante-Teixeira, Maximiliano Ribeiro Guerra, Mário Círio Nogueira, Vívian Asssis Fayer, Camila Soares Lima Corrêa, Isabel dos-Santos-Silva Cadernos De Saude Publica, 2019 Resumo: No Brasil, o Ministério da Saúde recomenda o rastreamento mamográfico bienal para mulheres entre 50-69 anos. Como o rastreamento é oportunístico no país, a periodicidade efetiva varia. Esse estudo visou a testar metodologia para a estimação do sobrerrastreio por periodicidade excessiva, definido como intervalo entre exames menores que o preconizado e sua associação com variáveis sociodemográficas. Trata-se de uma coorte de mulheres com mamografia de rastreamento de resultado normal em 2010, obtida por relacionamento probabilístico valendo-se das bases identificadas do SISMAMA. Foram utilizados dados referentes a mulheres residentes na microrregião de saúde de Juiz de Fora/Lima Duarte/Bom Jardim, Minas Gerais, Brasil, acompanhadas no Sistema até o fim de 2012. A taxa de sobrerrastreio foi de 150/mil mulheres/ano (IC95%: 144,9-155,9), atingindo 21% das mulheres. O sobrerrastreio aumentou 24% durante as campanhas Outubro Rosa (HR ajustada = 1,24; IC95%: 1,15-1,35). Quanto menor o tempo desde a última mamografia, maior foi a chance de sobrerrastreio. Em relação a mulheres que nunca tinham feito mamografia anterior a 2010, as que fizeram há 2 anos foram 2 vezes mais sobrerrastreadas (HR ajustada = 2,01; IC95%: 1,74-2,31) e há ≤ 1 ano 3 vezes mais (HR ajustada: 3,27; IC95%: 2,87-3,73). Nessa população, o sobrerrastreio foi substancial, expondo excessivamente as mulheres aos riscos do rastreamento sem benefício adicional e superestimando a cobertura mamográfica. A metodologia mostrou-se efetiva e deve ser aplicada em populações representativas para orientar políticas de controle de câncer de mama.
Survival Study of Triple-Negative and Non–Triple-Negative Breast Cancer in a Brazilian Cohort Homero Gonçalves, Maximiliano Ribeiro Guerra, Jane Rocha Duarte Cintra, Vívian Assis Fayer, Igor Vilela Brum, Maria Teresa Bustamante Teixeira Clinical Medicine Insights Oncology, 2018 Objective: To analyze the clinical, pathological, and sociodemographic aspects between triple-negative breast cancer (TNBC) and non-TNBC in a Brazilian cohort and identify potential prognostic factors. Methods: This hospital-based retrospective cohort study included 447 women with breast cancer treated at referral centers in Southeastern Brazil. Overall and disease-free survival were compared; prognostic factors were evaluated. Results: Triple-negative breast cancer corresponded to 19.5% of breast cancer diagnosis and was more prevalent among nonwhite and less educated women. The patients with TNBC tended to present with stage III cancer, high p53 expression, lymphocytic infiltration, and multifocality and treated with radical surgery and chemotherapy. The 5-year overall and disease-free survival were 62.1% and 57.5% for TNBC and 80.8% and 75.3% for non-TNBC, respectively ( P < .001). The TNBC recurrence was associated with multicentricity, whereas lymph node involvement increased the risk of both recurrence and death. Non-TNBC worse clinical course was associated with nonwhite ethnicity, lower education level, lymph node involvement, and advanced stage. Conclusions: Triple-negative breast cancer exhibited a more aggressive behavior, earlier and more frequent recurrence, and worse survival compared with non-TNBC. While biological and social variables were associated with poorer prognosis in non-TNBC, only lymph node involvement and multicentricity were correlated with worse clinical outcomes in TNBC.
Racial disparity in 10-year breast cancer survival: A mediation analysis using potential responses approach Mário Círio Nogueira, Maximiliano Ribeiro Guerra, Jane Rocha Duarte Cintra, Camila Soares Lima Corrêa, Vívian Assis Fayer, Maria Teresa Bustamante-Teixeira Cadernos De Saude Publica, 2018 Os objetivos foram investigar a associação entre raça/cor e a sobrevivência em 10 anos de mulheres com câncer de mama e o papel do estadiamento como mediador. Coorte hospitalar com 481 mulheres com câncer invasivo de mama, diagnosticadas entre 2003 e 2005. Foram feitas comparações entre mulheres brancas e negras quanto às características sociodemográficas e ao estadiamento, usando o teste qui-quadrado, e à sobrevivência em 10 anos, usando os métodos de Kaplan-Meier e regressão de Cox. Foram estimados para a variável raça/cor efeitos diretos e indiretos, mediados pelo estadiamento, com ajuste para a condição social da área de residência e idade, utilizando o modelo de respostas potenciais (contrafactual) e regressão múltipla de Cox. As mulheres negras residiam em setores censitários de menor renda, eram usuárias do setor público em maior proporção e foram diagnosticadas com estadiamentos mais avançados. A sobrevivência específica em 10 anos foi de 64,3% (IC95%: 60,0; 68,9), com diferença significativa entre brancas (69,5%; IC95%: 64,8; 74,6) e negras (44%; IC95%: 35,2; 55,1). Nos modelos múltiplos, ajustados para renda e idade, as negras tiveram pior prognóstico (HR = 2,09; IC95%: 1,76; 2,51), e a proporção mediada pelo estadiamento foi de 40% (IC95%: 37; 42). Há disparidade racial na sobrevivência do câncer de mama em 10 anos, mediada principalmente pelo estadiamento mais avançado da doença nas mulheres negras. Isso aponta para a necessidade de ampliar a cobertura e a qualidade do programa de rastreamento dessa doença e facilitar o acesso ao diagnóstico e tratamento precoces, com vistas à redução da iniquidade racial.
Rastreamento do câncer de mama em Minas Gerais: avaliação a partir de dados dos sistemas de informações do Sistema Único de Saúde Camila Soares Lima Corrêa, Luanna Couto Pereira, Isabel Cristina Gonçalves Leite, Vívian Assis Fayer, Maximiliano Ribeiro Guerra, Maria Teresa Bustamante-Teixeira, Camila Soares Lima Corrêa, Luanna Couto Pereira, Isabel Cristina Gonçalves Leite, Vívian Assis Fayer, Maximiliano Ribeiro Guerra, Maria Teresa Bustamante-Teixeira Epidemiologia E Servicos De Saude Revista do Sistema Unico De Saude do Brasil, 2017 OBJECTIVE: to assess the results of indicators related to the supply of mammography and level of adequacy of diagnostic confirmation for mammograms with suspicious findings of malignancy in Minas Gerais state and its health macroregions. METHODS: this is an evaluation study performed with data from the Breast Cancer Information System and the Outpatient Information System for the years 2010 and 2011. RESULTS: : the ratio of mammograms in women aged 50 to 69 years was of 0.14 in 2010 (goal: 0.12) and 0.15 in 2011 (goal: 0.16); most mammograms were performed on annual basis, and a high percentage of exams conducted in age groups which are not recommended by the Ministry of Health was observed; the ratio between biopsies and mammograms with suspicious findings of malignancy was of 0.31 (2010) and 0.42 (2011). CONCLUSION: the screening of breast neoplasms did not reach its goal in 2011 and there was a low rate of diagnostic confirmation for mammograms with suspicious findings of malignancy.
