Abstract
BACKGROUND: Multimorbidity, polypharmacy, and potentially inappropriate medication use in older adults are prevalent and affect their quality of life. This study investigates the interrelationship between potentially inappropriate medication use, comorbidity, and quality of life among older adults in Iran. METHODS: This cross-sectional study was conducted on 500 older adults in Isfahan City, Iran. The Beers Criteria for Potentially Inappropriate Medication Use in Older Adults, a health-related quality-of-life questionnaire for older adults, and the Charlson Comorbidity Index were used to gather data. RESULTS: Our findings related to older adults living in the Isfahan community showed that the prevalence of PIM was 61.6%, and the most common drug category was painkillers. The average quality of life score was (0.86 ± 0.08), and the worst category was related to sleep status. The average score of the CCI was 3.63 ± 1.40, with the most frequent diseases being hyperlipidemia, hypertension, and diabetes. After adjusting for confounding variables, a negative relationship between CCI (B = -0.009 [SE = 0.0027], P < 0.001) and PIM (B = -0.03 [SE = 0.007], P < 0.001) with quality of life was observed. CONCLUSION: Potentially inappropriate medication uses and comorbidities are high in our older population, and these variables are negatively associated with quality of life in this population. There are few family physicians trained in geriatrics in Iran. Policymakers should pay attention to these issues.