The study was a cross-sectional single-center study, conducted at Renji Hospital, Shanghai Jiaotong university school of medicine. We retrieved the medical records of all patients who had undergone upper gastrointestinal endoscopy from January 1, 2013 through December 31, 2019. The medical records were analyzed for the prevalence of H. pylori infection in patients with peptic ulcers.
Study Type
OBSERVATIONAL
Enrollment
400,000
NO intervention
Renji Hospital, School of Medicine, Shanghai Jiao Tong University
Shanghai, Shanghai Municipality, China
the prevalence of Helicobacter pylori and peptic ulcer
the trends change from 2013 to 2019
Time frame: 2013.1.1-2019.12.31
the ration of Helicobacter pylori positive peptic ulcers
the trends change from 2013 to 2019
Time frame: 2013.1.1-2019.12.31
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