Socio-economic determinants of risk of ischemic events: results of three-year clinical and epidemiological surveillance

The aim of the study is to identify social and economic factors associated with the development of coronary and cerebral ischemic events in urban residents based on the results of a three-year follow-up. Material and methods. The prospective non-interventional observational study included 431 patients. Data on the coronary and cerebral ischemic events in history, and social, economic and demographic data were collected at the baseline. Follow-up appointments were scheduled 3 years later to assess new cases of coronary and cerebral ischemic events. Taking into account the presence or absence of the adverse events in history at the baseline and follow-up visit, four groups of patients were formed. There were 350 (81.2 %) people without a coronary history (group 1), and 81 (18.8 %) with it (group 2). Respondents without a coronary history were divided into a subgroup with the absence of new ischemic (coronary and cerebral) events at the repeat stage, numbering 246 (57.1 %) people (1a), as well as a subgroup with their development – 104 (24.1 %) (1b). Similarly, respondents with a coronary history were divided into a subgroup with the absence of adverse events at the second stage, which included 35 (8.1 %) people (2a), as well as a subgroup with their occurrence – 46 (10.7 %) (2b). Results. At the baseline, only 18.8 % out of 431 patients had coronary events in history. At the follow-up visit, 150 (34.8 %) patients presented with new coronary or cerebral ischemic events: 10.7 % of those cases were fatal, 1.9 % – new cases of myocardial infarction, 3.5 % – cases of stroke, 13.5 % – new cases of angina pectoris, and 5.3 % – other diseases associated with coronary artery disease. One third out of 350 patients without coronary events in history and half of patients with coronary events in history presented with newly developed adverse events. Young respondents (35–49 years old) with no coronary history were 3 times more likely to have coronary and cerebral ischemic events over 3 years than people of the same age, but with previous diseases of the cardiovascular system. During the 3-year followup period, the risk of coronary and cerebral ischemic events in patients with coronary events in history was associated unemployment odds ratio (OR) 2.74 (95 % confidence interval (CI) 1.33; 5.66, p = 0.006), widowhood OR 2.98 (95 % CI 1.32; 6.74, p = 0.008), living in a rural area OR 2.30 (95 % CI 1.16; 4.55, p = 0.017) and female gender OR 2.63 (95 % CI 1.28; 5.43, p = 0.008). Conclusions. The risk of coronary and cerebral ischemic events during the 3-year follow-up period in the population of urban residents is associated with social and economic determinants such as female gender, unemployment, living in a rural area, and widowhood in the presence of a coronary history. 35–49-year-old men without a coronary history should also be considered as a group of special attention for the prevention of adverse events.

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