The relationship between Helicobacter pylori and gastric cancer based on epidemiology in public health

Helicobacter pylori is a common type of bacteria that is strongly associated with the development of gastric cancer. In this study, a case-control study was used based on an epidemiological perspective in public health. The presence of H. pylori infection was investigated in two groups of people, the healthy group and the gastric cancer group. This led to an analysis of the relationship between H. pylori and gastric cancer and methods of prevention and treatment based on epidemiological methods. It was concluded that there is a close relationship between H. pylori and gastric cancer, and that those infected with H. pylori are 13.49 times more likely to develop gastric cancer than those who are not. However, the exact mechanism needs to be further investigated.