The influence of beliefs and health literacy on medication-related outcomes in older adults: A cross-sectional study

Older adults who perceive their medicines as necessary are more inclined to report use of multiple medicines, leading to polypharmacy. Additionally, older adults with stronger beliefs in the necessity of medicines and higher levels of health literacy demonstrate greater self-efficacy for adherence. Health professionals should consider evaluating necessity beliefs in older adults to manage potential non-adherence, reduce the risk of polypharmacy, and thereby mitigate the risk of suboptimal medicine use.