The Concept of ʺEpidemiological Transitionʺ (Abdel Rahim Omran, 1971) and its Role in Research Regulating Problems of Natural Movement and Quantitative Population Reproduction: Realities Today

Introduction. It is an axiom that demographic processes were and are an urgent problem, since, despite the political and socio-economic development, the countries of the world remain in the process of continuous qualitative restoration and change of human generations, which has a direct impact on the state of labor, educational and defense resources and population health in both spatial and temporal certainty. As a result, the analysis of the essence of the concept of "epidemiological transition" (Аbdel Omran, 1971) and the outline of its role in the practical solution of the problems of regulation of natural movement and quantitative reproduction of the population make this research relevant in its own content.. The aim of the study. To analyze the components of the concept of "epidemiological transition" (Аbdel Rahim Omran, 1971) and its role in the study of problems regarding the regulation of natural movement and quantitative reproduction of the population. Materials and methods. Epidemiological, single-moment, continuous, retrospective scientific research of the available and accessible array of scientific and informational literary sources was carried out, in relation to the outlined topic of the scientific work, where methods were used: retrospective, comparison, generalization and abstract methods of research, as well as deductive awareness, structural and logical analysis taking into account the principles of systematicity. Results. It was established that the concept of "epidemiological transition" (Abdel Omran, 1971), without undermining the significance of other theories of "demographic revolutions" worked out before that, directly outlined the scientific direction for solving the problem of natural movement and quantitative reproduction of the population. It is proved that the significance of the analyzed scientific innovation of Abdel Omran lies in the statement about a radical change in the structure of mortality due to the reasons when the predominance of exogenous causes of death (infectious diseases) was replaced by the primacy of endogenous and quasi-endogenous (non-epidemic diseases), which, testified to the epidemiological transition in the state of morbidity and mortality, when non-infectious pathology appeared to be the main cause in solving the problems of natural movement and quantitative reproduction of the population. It is argued that according to the established exogenous and endogenous nature of the causes of Abdel Omran mortality, both stages, models, and factors/determinants on which society or individual citizens have a direct influence in preventing the occurrence of non-communicable diseases are outlined. It is substantiated that only after 30 years the world medical community was able to recommend the scientific achievements of Abdel Omran for practical implementation in health care at the WHO level, which has become a "cornerstone" today in the development of motives for the prevention of non-infectious diseases. Conclusion. The concept of "epidemiological transition" (Abdel Omran, 1971) scientifically convincingly points to a direct path for the societies of the world in solving the problem of natural movement and quantitative reproduction of the population, where the main role in the state of morbidity and mortality is played by endogenous and quasi-endogenous determinants, which, in fact, form group of non-infectious pathology among the population. For democratic Ukraine, this is of urgent importance, since non-communicable diseases are dominant in morbidity and mortality among European countries, which requires uncompromising implementation of the measures of the WHO General Action Plan on "Prevention and control of non-communicable diseases for the period up to 2030".