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Cancer survival in the northwestern of Sa?o Paulo State, Brazil: A population-based study

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Author(s):
Mafra, Allini ; Bardot, Aude ; Charvat, Hadrien ; Weiderpass, Elisabete ; Soerjomataram, Isabelle ; Fregnani, Jose Humberto Tavares Guerreiro
Total Authors: 6
Document type: Journal article
Source: CANCER EPIDEMIOLOGY; v. 83, p. 7-pg., 2023-02-28.
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 (Sa similar to o 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 oeso-phageal 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. (AU)

FAPESP's process: 19/21722-0 - Cancer survival on the northwest of São Paulo state, Brazil: a regional population-based study
Grantee:Allini Mafra da Costa
Support Opportunities: Scholarships abroad - Research Internship - Post-doctor
FAPESP's process: 18/22097-0 - Malignant neoplasms of the 18 cities of Barretos Regional Health District (RhD), Sao Paulo, Brazil: the importance of a population-based cancer registry
Grantee:Allini Mafra da Costa
Support Opportunities: Scholarships in Brazil - Post-Doctoral
FAPESP's process: 17/03787-2 - Malignant neoplasms of the 18 cities of Barretos regional health district (RhD), São Paulo, Brazil: the importance of a Population-Based Cancer Registry
Grantee:José Humberto Tavares Guerreiro Fregnani
Support Opportunities: Research Projects - Thematic Grants