The article provides an overview of foreign and national studies of socio-demographic factors of patients' commitment to treatment in atrial fibrillation and other chronic diseases. Low adherence to treatment with long-term therapy is the main reason for the decline in treatment effectiveness. Socio-demographic predictors of commitment to treatment, such as gender, age, race, marital status, education and income, are considered. Analysis of the results of studies shows the ambiguity and frequently contradictory connection of these factors with the commitment to treatment. At the same time, adherence to treatment is studied in connection with individual-personal factors - personality traits, level of emotional intelligence, self-efficacy, motivational features. It is suggested that individual-personal and general socio-demographic factors interact and have an indirect effect on adherence to treatment in long-term therapy.