Cardiovascular diseases remain the leading cause of death in the world, despite a gradual decline in recent decades, and that is largely associated with control of risk factors and improvement of acute phases treatment. These positive effects have led to significant increase in the prevalence of patients with cardiovascular diseases in population, which have high risk and benefit from the control of the highest risk and treatment. In addition, the progressive population ageing has contributed to an increase of number of patients with more frequent comorbid diseases and a higher risk of future cardiovascular events. Thus, it is relevant to study the impact of regular medical check-ups of subjects with coronary heart disease (CHD) on mortality from this disorder.

OBJECTIVE

To investigate the correlation between number of patients with CHD underwent regular medical check-up and mortality from CHD in the Russian Federation, Kursk and Kurgan Regions.

MATERIAL AND METHODS

Data from №12 form of statistical observation were used to deal with this purpose. In addition, the indices of adult population morbidity suffered from CHD were evaluated in dynamics as an important indicators of impact (influence) of healthcare system, sanitary-epidemiological and socio-economic well-being on health status of adult population in specific region and whole country. Mortality from CHD was assessed according to the data from «Medical and demographic indicators of the Russian Federation» collection of statistical materials. Mortality rate of adult population (over 18 years old), as well as of the population older than employable age (women over 55 years old and men over 60 years old) in Kurgan and Kursk Regions, as well as in the Russian Federation for the period from 2014 to 2020 yrs. was used to analyze the data. The cointegration of time series, describing the primary and overall CHD morbidities, as well as the proportion of subjects, who were under regular medical check-up, and timeliness of follow-up medical care registration were examined to identify the factors that cause mortality from CHD.

RESULTS

Indicators of primary and overall CHD morbidities in the Russian Federation are decreasing in dynamics, while proportion of primary CHD morbidity in Kursk region are increasing. Proportion of primary and overall CHD morbidity for the analized period from 2014 to 2020 yrs. in Kurgan region was risen. The coverage of subjects with CHD who were under regular medical check-up and timeliness of their follow-up medical care registration in examined areas was in the range from 80.6% (the Russian Federation) to 94.6% (Kursk region) and from 74.5% (the Russian Federation) to 81.8% (Kursk region) relatively. Mortality rates of adult population and population older than employable age from CHD in study areas were stable over time. They ranged from 411.9 per 100 thous. and 1193.6 per 100 thous. of population in 2020 yr. in the Russian Federation to 291.2 per 100 thous. and 729.7 per 100 thous. of population in 2020 yr. in Kurgan region. Tests for cointegration showed the correlation between mortality from CHD and overall CHD morbidity in examined areas for older than employable age subjects. At the same time, with the increase of adult population, who are under regular medical check-up, in Kursk region, the mortality rate from CHD rises. With the increase of overall CHD morbidity, the mortality from CHD decreases in Kurgan region. The existence of correlation is proved only between mortality from CHD and overall CHD morbidity for older than employable age population in Kurgan region. The correlation between slight increase of mortality from CHD and overall CHD morbidity for adult population was shown across whole Russia.

CONCLUSIONS

Tests for cointegration showed the correlation between overall coronary heart disease morbidity and mortality from this disorder in studied areas for subjects over employable age. This study doesn’t have the demonstration of positive impact of regular medical check-up on mortality of patients with coronary heart disease.