ANALYSIS OF THE IMPORTANCE OF SURVIVAL PREDICTORS AFTER MYOCARDIAL INFARCTION USING THE CAPLAN-MEIER METHOD

This article analyzes the nature of the influence of some factors on the survival rate of patients after myocardial infarction (MI). This study is necessary for the subsequent development of algorithms for predicting the risk of mortality from myocardial infarction, as well as planning treatment and preventive measures. Cardiovascular diseases make the largest contribution to the mortality rate of the population, they account for about 33% of the total number of deaths. After analyzing the nature of the influence of some factors, it is possible to draw conclusions that contribute to the reduction of these mortality indicators. The analysis was carried out by the Kaplan-Meier method using the STATISTICA 12 software package, module “Survival Analysis”. For the analysis, a non-personalized sample of patients admitted to hospitals in the Voronezh Region diagnosed with MI in 2015–2017, was supplemented with information on registered deaths after discharge of patients. The study showed that the greatest risk of death in the first five days after the onset of myocardial infarction. At the same time, 20- day survival is observed in 86% of patients undergoing MI. The analysis showed that the history of the disease arterial hypertension does not affect mortality in myocardial infarction. Gender of the patient is also not important. The effect of thrombolytic therapy is controversial (does not affect or worsens the prognosis of survival).

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