Helicobacter pylori infection in hospital workers over a 5-year period: correlation with demographic and clinical parameters.

Background: We aimed to determine whether any of various groups of medical and nonmedical staff in a large acute care hospital were at increased risk of acquiring Helicobacter pylori infection over a 5-year period, and we also aimed to identify risk factors or symptoms related to H. pylori positivity and seroconversion.

Methods: A total number of 437 subjects, aged 36.