Demographic data of the respondents.

The key to effective patient care is the patient’s proper cooperation, so it is important to examine the beliefs about medicine and self-management among diabetes patients. Therefore, the primary aim of the study was to investigate the attitude toward metformin medication and self-management of adult patients with diabetes in Hungary. A total of 591 metformin-taking diabetes patients completed the Beliefs about Medicine Questionnaire, while 283 metformin-taking diabetes patients completed the Environmental Barrier Assessment Scale. Multivariate regression analysis was conducted to investigate which socio-demographic factors influence the beliefs regarding medicines and various environmental barriers to diabetes self-management. Participants who reported a good or very good financial status were more likely to feel the need to take metformin compared to those perceiving bad or very bad financial status (coef = 0.25; p = 0.020). Respondents between 55-64 years and those older than 65 were significantly less concerned about metformin than those aged 18-24 years (coef = -0.47; p = 0.028 and coef = -0.41; p = 0.047). Participants with secondary education were significantly less likely to think that metformin was harmful than those with primary education (coef = -0.50; p = 0.009). In addition, those aged 35 or older saw more barriers to taking medication than those aged 18-24 years (35-44: coef = -0.54; p = 0.020; 45-54: coef = -1.15; p