Authors: Bulich E.G., Muravov I.V.
The problem of chronic pathological conditions and chronic diseases (CD) in a paradoxical way combine both opposed and mutually exclusive points of view. The development of chronic pathological conditions is considered to be the greatest danger to the life of the population or protective reaction. The absence of the reliable epidemiological methods to assess CD significantly interferes with the description of the problem.
The suggested analysis allowed justifying the assessment method of development of chronic diseases based on the use of known epidemiological indicators. The proposed indicators allowed quantitatively evaluating the correlation between sub-populations "adapted" and "unadapted" among the population. The indicators could evaluate the ability of the population to separate the disease preserving the life span.
The assessment method was approved at one of the most mass illnesses CD – ischemic heart disease (IHD). We explained the protective influence of the development of chronic IHD in people of working age. That influence was not the passive "extension" of the pathological process but the active mechanism of danger resistance that favored reduction of mortality. Although the development of chronic pathological conditions become a biological process, but its implementation at various diseases may differ importantly.
Keywords:epidemiology, chronicpathologicalstates, morbidity, morbidityrate, mortality, protectiveeffect, pathogenesis, ischemicheartdisease.