Introduction: Gastric cancer remains a significant public health challenge in Brazil, particularly in the Northern region, where barriers to early diagnosis and treatment persist. The disease disproportionately affects men over 50 and is often identified at advanced stages, complicating prospects for cure. Understanding regional incidence and mortality patterns is crucial to inform effective public health strategies. Objectives: This study aims to analyze the incidence and mortality of stomach cancer in Pará, with emphasis on sex differences, from 2020 to 2024. Additionally, it seeks to identify temporal trends using basic statistical methods, providing insights for cancer control policies. Methods: This is a descriptive, retrospective, and quantitative study based on secondary data from DATASUS. Data were analyzed in their raw form, without normalization or age-based thresholds, and included all reported ages. The study focused on three indicators: hospital admissions, deaths, and mortality rate (%), stratified by sex and year (2020–2024). Statistical analyses were performed using SPSS version 25.0, applying linear regression to analyze temporal trends, and Chi-square tests to assess proportional differences between sexes. All variables were modeled as categorical or continuous where appropriate, and due to data limitations, potential confounders such as comorbidities or socioeconomic status were not controlled for. Statistical significance was established at p < 0.05. Results: Between 2020 and 2024, 3,488 hospital admissions for stomach cancer were recorded in Pará, of which 67.3% were in male patients. There were 848 deaths, also predominantly among men (66.9%). The average mortality rate was 24.31%, being slightly higher among women (24.52%) compared to men (24.21%). Hospital admissions showed an increasing linear trend (p = 0.012), with the highest annual increase between 2020 and 2021, and an overall increase of 47.5% from 2020 (580 admissions) to 2024 (800 admissions). Mortality rates peaked in 2022 (27%) but showed a drop to 23% in 2024. The differences in hospital admissions between sexes were statistically significant (p < 0.01), and men experienced a more steady increase in admissions over time. Conclusion: This study aimed to analyze the incidence and mortality of stomach cancer in Pará, with emphasis on sex differences, from 2020 to 2024. The results demonstrate a significant and statistically validated increase in both hospital admissions and deaths from stomach cancer over this period, with a clear predominance among men. Persistently high mortality rates suggest ongoing challenges with late diagnosis and limited access to effective treatment. These findings highlight the urgent need for public health interventions—including early detection efforts, expanded screening, improved access to oncology care, and educational campaigns on risk factors—to mitigate the burden of stomach cancer in Northern Brazil and improve population health outcomes.
It is with great enthusiasm that we present the Annals of the Oncology International Symposium 2025, an event that continues to solidify its significance in the oncology landscape of northern Brazil. Held in Belém, Pará, Oncology 2025 centered around the theme "The cancer control challenge: better knowing it to best facing it," dedicating itself to exploring the latest frontiers in cancer treatment and prevention.
This year, the symposium provided a deep dive into the essential role of knowledge in the fight against cancer, presenting new perspectives and scientific advancements across various areas of oncology. Renowned global experts gathered to share their most recent research and innovative approaches, offering participants a comprehensive view of the challenges faced by healthcare professionals and patients worldwide.
Presentations and discussions during the event focused on critical topics such as the use of new technologies, advancements in personalized therapies, and more effective prevention strategies. Additionally, particular attention was given to the unique challenges faced by the Amazon region, with efforts aimed at developing region-specific solutions to meet local needs.
Beyond being a high-caliber academic event, Oncology 2025 stood out as a moment for integration and professional networking, with the warm hospitality of the city of Belém offering participants a unique experience. This event became a platform for exchanging ideas, where science, culture, and humanity came together in pursuit of a common goal: to improve cancer control both in Brazil and globally.
This collection of abstracts and articles presented during the event reflects the ongoing dedication to research and the development of innovative solutions, highlighting the importance of collaboration and shared knowledge in the fight against cancer.
General Submission Guidelines:
The presenting author, who does not have to be the first author, must be registered for Oncology 2025.
Each abstract may have up to 10 authors, including the main author and co-authors.
Only original, unpublished work will be accepted.
Submissions must be related to oncology. However, project descriptions, work proposals, experience reports, and literature reviews will not be considered.
Clinical case reports are allowed, provided the abstract addresses scientific questions, details clinical observations, and includes primary scientific data.
The abstract must be written in English, but presentations may be given in Portuguese.
Abstracts must be between 300 and 500 words.
Comissão Organizadora
Comissão Científica
See Annals of Oncology 2023 at:
https://www.even3.com.br/anais/oncology-2023-international-symposium/
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