Mortality from Circulatory System Diseases among Liquidators of the Consequences of the Chernobyl AOS Accident from among Employees of Nuclear Industry Enterprises

Summary. The aim of the study was to evaluate the mortality from circulatory system diseases (CSD) and its dynamics in liquidators of the Chernobyl accident consequences, workers of nuclear industry enterprises. Materials and research methods. The information base of the study was the data contained in the Industry Register of persons exposed to radiation as a result of the Chernobyl NPP accident (ORCh) functioning since 1987 in FGBU GSC FMBC named after A.I. Burnazyan FMBA of Russia. The database (DB) of the ORCH contains information about 21356 liquidators of the Chernobyl accident consequences. The study covers the period from 1987 to 2021. 304023 persons/years were accumulated in the register for the observation period. The material was processed using the Excel statistical package, the growth rate was calculated when assessing the dynamics of mortality. The results of the study and their analysis. In the structure of CSD mortality (ICD10: I00-I99,9) in liquidators of Chernobyl accident consequences the first rank place is occupied by chronic ischaemic heart disease unspecified (CIHD) (ICD10: I25,9), the second rank place – cerebrovascular diseases (CVD) (ICD10: I67,9), the third rank place – Unspecified cardiomyopathy (ICD10: I42,9). The growth rate of CSD mortality during the observation period is mainly positive, the highest in liquidators of working age.