Tempo Spatial Analysis of Mortality due to Gastric Cancer in the State of Paraná, between 2011 and 2021
DOI:
https://doi.org/10.53843/bms.v11i15.1451Keywords:
spatio-temporal analysis, epidemiology , stomach neoplasmsAbstract
Introduction: Gastric cancer remains one of the neoplasms with the highest mortality rates in Brazil, particularly in states with wide socio-environmental diversity, such as Paraná. Its regional variations suggest the influence of socioeconomic factors, dietary habits, healthcare access, and population distribution, reinforcing the importance of spatiotemporal investigations. Methods: An ecological epidemiological study with spatial analysis of mortality from malignant gastric neoplasm (ICD C16) was conducted across municipalities in Paraná from 2011 to 2021. Mortality data were obtained from the Mortality Information System (SIM/DATASUS) and population estimates from the Brazilian Institute of Geography and Statistics (IBGE). Crude and age-standardized mortality rates were calculated, and the epidemiological profile was assessed according to sex, age, race, marital status, and education level. Temporal trends were analyzed using the Joinpoint Regression Program, while spatial analyses were performed in GeoDa with local empirical Bayesian smoothing and construction of thematic maps. Results: A total of 10,649 deaths were recorded during the study period. Most deaths occurred among males (66.2%), individuals aged 70–79 years (27.5%), Whites (77.2%), and those with 4 to 7 years of schooling (29.8%). The mean mortality rate was 8.66 per 100,000 inhabitants, peaking in 2015 (9.27/100,000) and reaching its lowest value in 2020 (7.73/100,000). Spatial analysis revealed significant clusters in the Centro Oriental, Norte Pioneiro, Sudoeste, and Noroeste regions. Discussion: The findings demonstrate persistent territorial inequalities, possibly related to disparities in healthcare access, prevalence of risk factors, and regional demographic characteristics. The identification of spatial clusters underscores the need for continuous surveillance and targeted public health policies. Conclusion: The study highlights priority areas for intervention within Paraná, contributing to the planning of prevention strategies, early diagnosis, and reduction of gastric cancer mortality.
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Copyright (c) 2026 Fernanda Ritt de Souza, Isabela Gusso Scremin, Carlos Roberto Naufel Junior, Giovana Derewlany Araujo, Leonardo Moreira Dias, Manoella Schveitzer Cardoso, Tailla Cristina Oliveira , Maria Carolina Xavier Westphalen
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