Introduction: Head and neck cancer (HNC) comprises a heterogeneous group of malignant neoplasms that can affect the oral cavity, pharynx, larynx, nose, paranasal sinuses, orbit, neck and thyroid. It represents a major public health challenge due to its high incidence and mortality, with approximately 80% of cases diagnosed in advanced stages, which significantly reduces the chances of cure. It is estimated that approximately 900,000 new cases occur each year worldwide, especially in low- and middle-income countries. In Brazil, HNC is the fifth most common type of cancer, being more common in men. Among the main risk factors are smoking and alcoholism, associated with sociodemographic aspects such as sex, education and race/color. Objective: To investigate the associations between sociodemographic profile, risk behaviors and clinical characteristics in HNC patients treated at oncology centers in the North of Brazil. Methods: Observational study with adult patients diagnosed with HNC and treated at João de Barros Barreto University Hospital and Ophir Loyola Hospital, in Belém (PA), between July 2023 and August 2024. Data were extracted from electronic medical records, tabulated and analyzed using Jamovi software (v.2.2.1). The chi-square test was applied to verify associations between sociodemographic, clinical and outcome variables, with a significance level of p ? 5%. The study was approved by the Ethics Committee (CAAE: 68356923.4.0000.5634). Results: A significant association was identified between sex and alcohol consumption (p = 0.001), with a higher prevalence of alcoholism among men. Similarly, a relationship was observed between sex and smoking (p = 0.001), indicating that men also tend to have higher tobacco consumption in the studied group. A strong association was also observed between smoking and alcoholism (p < 0.001), revealing that, in the analyzed data, men who presented both habits had an increased risk of HNC. The most frequent tumor types were thyroid gland, larynx and other soft parts of the tongue. Among all registered HNC types, a significant difference was found according to education level (p < 0.001), suggesting that educational background may influence access to information and early diagnosis. Associations were also observed between tumor types and alcoholism (p = 0.020), as well as race/color (p < 0.001), evidencing social inequalities in case distribution. Finally, certain tumor types showed a greater association with death (p = 0.014), which may guide prevention strategies and clinical interventions. Conclusion: HNC is a serious condition, but with potential for cure when identified early. This study demonstrated that sociodemographic and behavioral factors directly influence disease profile and severity. Integrating this information is essential for developing more effective public policies, awareness campaigns and clinical strategies focused on prevention, early diagnosis and equity in cancer care.
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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