Objective: Stomach cancer ranked sixth among the most common cancers in 2020, with approximately 1.1 million new cases and approximately 76,900 deaths. Therefore, estimations of the incidence and mortality, and burden of stomach cancers are needed to plan for cancer control. In this study, the updated distribution of incidence, mortality, and global burden of stomach cancer based on different classifications was investigated according to the Global Burden of Disease (GBD) 2019 Study.

Materials and Methods: Epidemiological data have been derived from the study of the GBD in 2019. Data were extracted globally for 204 countries and groups based on a sociodemographic index (SDI), world health organization (WHO) regions, continents, World Bank regions, and 21 GBD regions. The correlations with SDI were investigated by Spearman's rho correlation coefficient and SPSS 2016 software.

Results: The global distribution of incidence, mortality, and burden of stomach cancers varies in different geographical areas. Mortality and burden of stomach cancer are related to sociodemographic indicators of countries. No correlation was detected between the incidence of stomach cancer and SDI. Gender is also one of the effective factors in the death and incidence of stomach cancer.