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To explore which regularly prescribed medications are most commonly administered to older adults in aged care facilities in Australia, by whom and when, and to identify the prevalence of polypharmacy in this population group.
Retrospective descriptive study.
This study involved exploratory analysis of de-identified medication administration records from March 17, 2023–March 18, 2024. Older adults' demographic and medication administration data were requested from two electronic medication chart providers in Australia. For inclusion, older adults must have been living in an aged care facility for the entire timeframe. Data were analysed using descriptive statistics, activity pattern analysis, Welch two sample t-tests, ANOVA and independent sample t-tests. The STROBE checklist was used to report this study.
In all, 12,438 older adults were included, with a median age of 87, spanning 287 aged care facilities across Australia. Nervous system medications (over 16 million doses) and alimentary tract/metabolism medications (over 12 million doses) were the most administered. Within these, paracetamol 500 mg tablets and docusate sodium 50 mg + sennoside B 8 mg tablets were the most common. Quetiapine, a strong anticholinergic medication, was also present in the top 30 most administered medications. Certified nursing staff were the primary administrators of medication (66% of actions), followed by non-nursing staff (27%). Medications were predominantly administered before 10 am and after 10 pm. With a median of 8 regular medications administered per older adult per day, 78% experienced polypharmacy.
The most common regular medications administered in aged care facilities were non-opioid analgesics and laxatives. Many medications were administered in the late evening, where staffing levels were likely to be limited. There was a high prevalence of polypharmacy, and non-nursing staff were involved in medication administration.
This study offers important insights and new knowledge around use of regular medications in aged care facilities, using a nationally representative sample from Australia. It highlights the high volume of non-opioid analgesics and laxatives administered to older adults, some of which may be optimised, modified or replaced with nonpharmacological alternatives to reduce medication burden. This study also notes that not all regular medications are being administered in Australia by certified nursing staff, and that medication administration activity peaks during both breakfast and late evening rounds. These are important considerations for aged care facilities when assessing staffing ratios, rostering, and how to reduce competing demands for aged care staff. Although much attention has been placed on reducing polypharmacy and optimising medications for older adults, this study also identifies that polypharmacy is prevalent, with 78% of older adults experiencing this through use of regular medications alone. The findings of this study will enable more informed discussions between nursing staff, prescribers, pharmacy and potentially older adults and their families around regular medication and its administration in aged care facilities.
The STROBE checklist was followed.
No patient or public contribution.
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