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Introduction. The aim of this study was to assess adherence to treatment with use of the new scale in a population of patients with coronary artery disease (CAD) after myocardial infarction (MI) with respect to some socio-demographic and clinical factors.

Material and methods. The study was conducted in a population of 100 consecutive patients (40 women, 60 men) aged from 30 to 88 years (mean 63.4), six months after hospitalization for MI. Results. The results of the assessment with the Adherence in Chronic Diseases Scale (ACDS) comprise between 6 and 28 points; median 24 points (21–28). Twenty-four patients had high score (> 26 pts.), 53 patients had intermediate score (between 21–26 pts.) and 23—low score (< 21 pts.). For optimal model of multiple regression, the correlation coefficient R was 0.539; and the adjusted coefficient of determination R2= 0.26, p= 0.000002. Independent factors affecting adherence according to the ACDS scale were: subjective assessment of health status (b= 0.48±±0.23, p= 0.036), age of the respondents (b=–0.11±0.04, p= 0.004), more than one hospitalization due to CAD (b=–1.78±0.87, p= 0.044), and diabetes mellitus (b=–2.02±0.91, p= 0.029).

Conclusions. Subjective assessment of health status, age of patients, the number of hospitalizations due to CAD and diabetes affect the adherence in the course of long-term treatment after myocardial infarction.