ABSTRACT
According to domestic and foreign studies, diabetes mellitus (DM) is a significant risk factor for infection with the SARS-CoV-2 vi-rus, a severe course of the disease, and an adverse outcome. Trend analysis of epidemiological and clinical characteristics of DM patients living in the Samara region in the initial period of the spread of the new coronavirus infection can help to assess the effectiveness of medical care for DM patients in a challenging epidemiological setting and to determine the directions for its improvement. Objective. To assess the trends in the prevalence, incidence, and mortality of DM patients living in the Samara region and to iden-tify the changes in the structure of vascular complications and the status of glycemic control from 2018 to 2020. Material and methods. The study of the medical and epidemiological DM indicators was performed according to the design of a continuous retrospective observational study covering the period from 2018 to 2020;the object was the adult population of the Samara region. Results. The total number of DM patients in the Samara region in 2020 was 118,623 people (3.73% of the population), of which type 1 diabetes was detected in 5.2% (6118 people) and type 2 diabetes in 94.2% (111,700 people). The trends of the prevalence of type 1 DM were 186.3->192.4/100,000 population, type 2 DM 3132.5->3153.1/100,000 population;the dynamics of primary morbidity with type 1 diabetes mellitus 8.8->6.2/100,000 population, with type 2 DM 259.1->196.4/100,000 population;mortality with type 1 diabetes mellitus 3.2->4.2/100,000 population, with type 2 diabetes mellitus 120.7->174.5/100,000 population. The most common causes of death were cardiovascular diseases: 30.3% in type 1 DM, 39.7% in type 2 DM;there is a trend towards increasing in death <<from DM>> without indicating the immediate cause of death for both types of DM;<<from COVID-19>> 3.8% with type 1 DM and 3.7% with type 2 DM. The incidence of vascular complications in type 1 and type 2 DM was 31.4% and 11.5% for reti-nopathy, and 21.4 and 11.5% for nephropathy, respectively. Trends in the proportion of patients with HbA1c <7%: 28.1%->51.1% in type 1 DM, 15.7%->62.4% in type 2 DM;with HbA1c >=9.0%: 25.4%->12.1% in type 1 DM, 39.8%->7.1% in type 2 DM. Conclusion. The study demonstrates the importance of a comparative sequential assessment of the epidemiological characteristics of diabetes mellitus and the clinical status of patients living in the Samara region in challenging epidemiological settings to assess the prospects for optimizing follow-up.Copyright © 2023, Media Sphera Publishing Group. All rights reserved.