AGE-RELATED CHARACTERISTICS OF ISCHEMIC HEART DISEASE INCIDENCE IN UKRAINE: A TWO-CENTER STUDY

Purpose of this study is to investigate the age-related characteristics of the incidence of coronary heart disease in Ukraine, considering sex differences. Materials and Methods: The study included patients with coronary heart disease who underwent coronary artery bypass surgery on a beating heart (n = 3,674), comprising 3,061 males and 613 females. The average age of the participants was 60.6 ± 0.8 years. The analysis was based on data obtained from primary medical documentation, including medical histories, anamnestic information, and extracts from patients’ outpatient cards. The research design categorized participants by age group according to the World Health Organization age classification and by sex. Results: The article presents the incidence rates of coronary artery disease based on patient age groups, classified according to the World Health Organization, and sex. The distribution of patients by age groups was analyzed while considering sex, and the frequencies and average ages of the patients were determined. It was found that the incidence of coronary artery disease was highest among the most prevalent age groups in Ukraine's population: middle-aged and elderly patients. The frequency of early postoperative mortality was 0.6%, and it correlated with age-related incidence rates of coronary heart disease. Notably, early postoperative mortality was significantly higher in age groups with the highest incidence of coronary heart disease, specifically among middle-aged and elderly patients (p = 0.03, χ² = 4.69). Conclusions: In this retrospective two-center study of patients with coronary heart disease, it was determined that male patients were affected five times more frequently than female patients. The most common age groups for patients with coronary heart disease were identified as middle-aged and elderly. Early postoperative mortality following coronary artery bypass surgery on a beating heart was found to be 0.6%, with the highest rates observed in elderly (54.6%) and middle-aged (31.8%) patients. The frequency ratios demonstrated statistical significance favoring elderly patients (p = 0.03, χ² = 4.69). The frequency of early postoperative mortality was significantly higher among male patients (p = 0.0001, χ² = 40.33).