Risk factors for gastric precancerous and cancers lesions in Latin American counties with difference gastric cancer risk.

•Gastric cancer remains the leading cause of infection-related cancer in 2018.•1222 patients with various gastric pathology were recruited in Latin American•Seropositivity to H. pylori was associated with risk of pre-neoplastic lesions.•Grain/cereal intake and egg intake were related to gastric cancer.•Cigarette smoking was associated with risk of being infected by H. pylori.