4.6 Article

Sources of medication omissions among hospitalized older adults with polypharmacy

Journal

JOURNAL OF THE AMERICAN GERIATRICS SOCIETY
Volume 70, Issue 4, Pages 1180-1189

Publisher

WILEY
DOI: 10.1111/jgs.17629

Keywords

best possible medication history; medication errors; polypharmacy

Funding

  1. National Institute on Aging of the National Institutes of Health [R01AG053264, UL1TR000445]
  2. National Center for Advancing Translational Sciences

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A multipronged approach was used to obtain the best possible medication history (BPMH) for hospitalized older adults, revealing high prevalence of medication discrepancies in the study cohort. Factors such as lower age, greater prehospital medication count, and admission from assisted living or skilled nursing facility were significantly associated with greater medication discrepancies. These findings highlight the importance of addressing medication discrepancies prior to hospital discharge in order to support safe prescribing practices for multimorbid older adults.
Background Hospitalized older adults have a high prevalence of polypharmacy and medication inaccuracies. Gathering the best possible medication history (BPMH) is necessary to accurately identify each medication for multimorbid older adults. The objective was to describe a multipronged approach to obtaining the BPMH for hospitalized older adults, quantify the medication discrepancies identified through these sources, and explore factors associated with these discrepancies. Methods Cross-sectional analysis of 372 hospitalized older adults (age >= 50) transitioning to post-acute care as part of a randomized controlled trial to reduce medication burden. We used four information sources to yield a BPMH. Medication discrepancies at hospital admission were categorized as omissions, additions, and dose discrepancies after comparing alternate sources with the electronic medical record (EMR). Multivariate regression analysis, including patient factors (e.g., age, prehospital medication count, number of pharmacies), was performed to identify factors associated with the total count of medication discrepancies. Results Ninety percent of participants had at least one medication discrepancy and 46% used more than one pharmacy. The majority of discrepancies were omissions. Among the entire cohort, there was a median of two omitted medications per patient across two alternate sources-pharmacy refill history and bedside interview. Lower age, greater total number of prehospital medications, and admission from assisted living or skilled nursing facility were significantly associated with greater medication discrepancies. Conclusion A multipronged and consistent approach to obtain a BPMH during hospitalization for multimorbid older adults revealed medication discrepancies that should be addressed prior to hospital discharge to support safe prescribing practices.

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