Factors associated with medication adherence among older adults with multimorbidity: A culture perspective.

Multimorbidity is a healthcare concern. To manage diseases, older adults with multimorbidity are expected to practice health behaviors, particularly medication adherence. Studies have examined adherence issues in older patients with multiple diseases, but it remains unclear which factors affect medication adherence. Therefore, this study aimed to identify the factors affecting medication adherence among older adults with multimorbidity. The participants were recruited from the outpatient departments of two hospitals in the Republic of Korea using convenience sampling. Data were collected using structured questionnaires and analyzed using multiple regression analysis. The results showed that those with a lower education level, no side effects, better health literacy, higher medication self-efficacy, and more social support exhibited better medication adherence. In addition, beliefs about medication were not related to medication adherence. These results suggest that providing individualized education, strengthening social support, and decreasing harmful side effects can improve medication adherence.