![]() Thus, in this study, I sought to verify models that can predict prescription adherence in terms of public health and to explore variables that moderate the model. Adherence or compliance is, therefore, essential to disease treatment or health promotion. However, even when the prescription is appropriate, treatment or prevention cannot succeed if the patient does not adhere to it. Park and colleagues also conducted a Focus Group Interview (FGI), and confirmed that the actual rate may be much lower than the rate of self-reported medication adherence.įor recovery from or prevention of disease, prescriptions need to be correct. However, the rate at which study participants were prescribed and purchased the drug was significantly lower than the self-report ratio. In a report by the Korea Institute for Health and Social Affairs (KIHASA), which studied Koreans’ adherence to the treatment of chronic diseases, the medication adherence ratio based on the self-report adherence scale was not exceptionally low. In addition, medication adherence rates reported in studies may be inflated. In a meta-analysis of over 500 studies, DiMatteo concluded that the proportion of people who do not adhere to prescription drugs for life-threatening diseases is around 25%. Even when they have a prescription from a medical care provider or health professional, Koreans often do not, in actuality, adhere to the prescription instructions in practice. ![]() Because of their high level of interest in health, it may seem likely that they intend to practice health behaviors to improve, maintain, or recover their health, but in fact, it is reported that they do not do so. Koreans’ interest in health has been heightened in the twenty-first century as their living standards have improved and their life expectancy has increased significantly. The findings of this study should provide useful information for future research and for medical or health professionals who wish to improve the medication adherence of their patients. ![]() This model was found to be moderated by optimistic or present bias. ResultsĪn alternative TPB model, including a direct path from attitude to behavior, a direct path from the perceived behavioral control to the behavior, and an insignificant path from behavioral intention to behavior, was validated for Korean adults’ medication adherence. The study examined TPB factors with modified items related to medication adherence and optimistic bias with items developed based on the concept and on previous studies. Their medication adherence was measured with the Morisky Green Levine Scale. The participants were 357 Korean male and female adults whose ages ranged from 18 to 76 ( M = 41.53, SD = 9.89). ![]() Therefore, this study verified the theory of planned behavior (TPB) model to predict medication adherence among Korean adults and examined the role of optimistic or present bias in that model. To prevent or recover from a disease, the prescriptions for medications must be correct, and the patient must comply with the medication’s instructions.
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