Abstract
Objective: To define the main environmental risk factors present in patients hospitalized at a referral hospital in Belém-PA oncology, relating them to regional Amazonian peculiarities and to Helicobacter pylori (H. pylori) infection. Methods: This is a cross-sectional quantitative approach, where 32 patients were selected over a 2-month period. Results: A risk factor for gastric adenocarcinoma was found to be older than 50 years (46.87% from 51 to 60 years and 31.37% from 61 to 70 years, p = 0.0064), low schooling and (p-0.0016 and <0.0001), salt consumption in processed foods, especially salted dried meat, salted fish and barbecue (p-0.0004, 0.0003 and 0.0064) and daily consumption of foods of regional habits such as cassava flour ( p <0.0001) Conclusion: H. pylori infection was not reported as an important risk factor, as was smoking and alcohol consumption.