Background.Infectious and non-infectious diseases of the digestive system are common in Russia and worldwide and have major social and economic significance, yet the importance of infectious diseases in development of chronic digestive disorders is not adequately studied. The study aims to define epidemiologic charateristics of non-infectious diseases of the digestive system and to assess the influence of enteric infections on chronic digestive disorders development.Materials and methods.The authors conducted a retrospective epidemiologic analysis of incidence and prevalence of infectious and non-infectious digestive diseases in Russia in the period between 2002 and 2017 and in-depth for 2010–2017. Statistical analysis was done using least square method, Pearson correlation and regression analysis and statistical processing was performed using the Microsoft Excel and IBM SPSS Statistics software. Findings. During the incidence growth period for non-infectious diseases (2010–2015) in Russia a strong positive correlation is detected between incidences of infectious and non-infectious digestive diseases. In particular, Hepatithis A, Enterovirus, Rotavirus and Norovirus infections have to most significant impact on liver, biliary tract diseases, pancreas and intestinal diseases.Conclusion.Enteric infections increase the risk of development of chronic digestive diseases. Prevention of infectious diseases will allow to decrease incidence of chronic digestive diseases

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Aim. To study the relationship of the incidence of infectious and non-infectious diseases of the digestive system.Materials and methods. A retrospective epidemiological analysis of the incidence of the population of the Russian Federation by diseases of the digestive system of an infectious and non-infectious nature for the period of 2002-2019. The data were sampled from state statistics forms No. 2, No. 23; determining the relationships between these disease groups using Pearson correlation methods and linear regression. A case-control study by questioning a sample of 107 people.Results. A parallel increase in the incidence of diseases of the digestive system of a non-infectious and infectious nature is observed. The most pronounced increase is in the incidence of viral infections. Strong correlation exists between rotavirus infection and diseases of the liver, pancreas, intestines; between norovirus infection and diseases of the liver, pancreas; enterovirus infection and pancreatic disease; as well as hepatitis A and gallbladder diseases. Patients suffering from chronic non-infectious diseases of the digestive system, with a reliably high chance, often suffer from acute intestinal infections, rotavirus infection, hepatitis A, and are also better aware of their etiology than those who do not have such diseases.Conclusion. Prevention of infectious diseases of the digestive system will reduce the incidence of noncommunicable diseases associated with them.