National trends in mortality of gastric cancer among older adults (70+) from 1990 to 2021 across 204 nations: A global burden of disease study.

e16074 Background: Gastric cancer is a malignant disease characterized by the uncontrolled growth of cells in the stomach lining. It is a global health concern with regional variation in incidence and prevalence. This study examines the national mortality trends in adults aged 70 years and older from 1990 to 2021. Methods: GBD data was analysed to assess the mortality rates of Gastric cancer in individuals aged ≥ 70 years. The Estimated Annual Percentage Change (EAPC) was used to evaluate trends from 1990 to 2021, with p-values determining statistical significance. Results: From 1990 to 2021, the global prevalence of Gastric cancer increased, peaking in 2021. Japan recorded the highest prevalence (621.7379, UI: 525.93, 675.74), followed by the Republic of Korea and China.In 2021, Bolivia (Plurinational State of) had the highest mortality rate (309.7, CI: 400.9, 240.6), slightly lower than its 1990 rate (445.35, CI: 539.58, 362.14), which was the highest that year. Mongolia (303.15, CI: 378.8, 226.2) and Cabo Verde (265.1, CI: 322.6, 206.8) followed. The lowest mortality rates were observed in Morocco (20.9, CI: 25.9, 15.0), Namibia (20.93, CI: 25.93, 16.4), and Nigeria (23.27, CI: 32.3, 19.2).Countries with the largest EAPC increases included Egypt (0.98, CI: 1.84, -0.22), Honduras (0.31, CI: 0.7, -0.01), and Lesotho (0.16, CI: 0.597, -0.16). The greatest declines were seen in Austria (-0.72, CI: -0.68, -0.74), Czechia (-0.69, CI: -0.64, -0.74), and Hungary (-0.67, CI: -0.607, -0.72). Conclusions: Mortality rates associated with Gastric Cancer among individuals aged 70 and older increased globally from 1990 to 2021, notably in Egypt, Honduras and Lesotho, emphasizing the need for improved prevention, management, and research on underlying disparities. Mortality percent changes. Metric Region 1990 2021 EAPC with 95% CI (1990-2021) HIGHEST MORTALITY PERCENT CHANGE Egypt 30.43 60.44 0.98 (1.84, -0.22) Honduras 140.76 184.48 0.31 (0.7, -0.01) Lesotho 77.18 90.26 0.16 (0.59, -0.16) LOWEST MORTALITY PERCENT CHANGE Austria 177.25 49.48 -0.72 (-0.68, -0.74) Czechia 168.73 51.51 -0.69 (-0.64, -0.74) Hungary 184.88 60.55 -0.67 (0.607, -0.72)