[EPIDEMIOLOGICAL STUDIES IN GASTROENTEROLOGY: LONG-TERM SIBERIAN EXPERIENCE OF HELICOBACTER PYLORI AND RELATED DISEASES].

The paper presents the long-term experience of Siberian epidemiological studies in the field of gastroenterology (cross-sectional and prospective). High prevalence of Helicobacterpylori infection (75-85%) in the adult population of Siberia, and the association with dyspeptic symptoms in different age groups are shown. The dynamics of infection in children and adolescents, the high detection rates of CagA-positive strains, the prevalence of the different phenotypes of gastritis and the predictive value of gastric atrophy biomarkers in relation to gastric cancer were studied. The importance of epidemiological studies for the formation of groups at risk for a number of diseases and the development of prevention programs is demonstrated.