title: [A study on the relationship between Helicobacter pylori and chronic gastritis and peptic ulcer by the case-control method and sequential analysis].
abstract: The association between Helicobacter pylori and the chronic gastritis and peptic ulcer was investigated by the case-control method, 1:1 matched study and sequential analysis. The results of three methods showed that the degree of association between Helicobacter pylori and the chronic gastritis and peptic ulcer was significant (chi 2 = 22.70, P < 0.001, OR = 15.63, 95% CI of OR was 5.05, 48.43), especially that between Helicobacter pylori and active chronic gastritis (OR = 20.92). The results indicate that Helicobacter pylori might be an etiological factor for patients with chronic gastritis and peptic ulcer.
authors.affiliation: Department of Epidemiology, Tongji Medical University, Wuhan.
authors.forename: Y
authors.initials: Y
authors.lastname: Guan
mesh_terms: D016022:Case-Control Studies; D002908:Chronic Disease; D005756:Gastritis / Q000453:epidemiology / Q000382:microbiology*; D016481:Helicobacter Infections / Q000453:epidemiology*; D016480:Helicobacter pylori; D006801:Humans; D016017:Odds Ratio; D010437:Peptic Ulcer / Q000453:epidemiology / Q000382:microbiology*