Global prevalence of Helicobacter pylori infection between 1980 and 2022: a systematic review and meta-analysis

　　【财新网】

　　Publishing agency：The Lancet Gastroenterology and Hepatology

　　Published：April 19, 2023

　　Summary

　　Background

　　Few studies have examined the temporal trends of Helicobacter pylori prevalence worldwide. We aimed to identify the changes in global prevalence of H pylori infection between 1980 and 2022.