[Adherence, methodology and studies in Hungary].
Adherence to therapies is a primary determinant of treatment success. Poor adherence has a negative impact on clinical benefits and therefore reduces the overall effectiveness of health care systems. Numerous methods have been used in attempts to adequately assess patient adherence. The choice of a method for measuring adherence should be based on the usefulness and reliability of the method in light of the researcher's or clinician's goals, taking into account the advantages and disadvantages of the method. The current paper aims to summarize the available measurement methods with their strengths and weaknesses and to present the published studies on adherence within the Hungarian population. The evaluated survey results suggest the importance to improve patient adherence in Hungary. Health care professionals, especially pharmacists have potential influence on adherence and patient's behaviour. It is hoped that this review will lead to help policy development and action to enhance adherence.