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Published in: BMC Geriatrics 1/2024

Open Access 01-12-2024 | Dementia | Research

Potentially inappropriate prescribing for people with dementia in ambulatory care: a cross-sectional observational study

Authors: Nahla A. Alageel, Carmel M. Hughes, Monira Alwhaibi, Walid Alkeridy, Heather E. Barry

Published in: BMC Geriatrics | Issue 1/2024

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Abstract

Background

Studies have shown that potentially inappropriate prescribing (PIP) is highly prevalent among people with dementia (PwD) and linked to negative outcomes, such as hospitalisation and mortality. However, there are limited data on prescribing appropriateness for PwD in Saudi Arabia. Therefore, we aimed to estimate the prevalence of PIP and investigate associations between PIP and other patient characteristics among PwD in an ambulatory care setting.

Methods

A cross-sectional, retrospective analysis was conducted at a tertiary hospital in Saudi Arabia. Patients who were ≥ 65 years old, had dementia, and visited ambulatory care clinics between 01/01/2019 and 31/12/2021 were included. Prescribing appropriateness was evaluated by applying the Screening Tool of Older Persons Potentially Inappropriate Prescriptions (STOPP) criteria. Descriptive analyses were used to describe the study population. Prevalence of PIP and the prevalence per each STOPP criterion were calculated as a percentage of all eligible patients. Logistic regression analysis was used to investigate associations between PIP, polypharmacy, age and sex; odds ratios (ORs) and 95% confidence intervals (CIs) were calculated. Analyses were conducted using SPSS v27.

Results

A total of 287 PwD were identified; 56.0% (n = 161) were female. The mean number of medications prescribed was 9.0 [standard deviation (SD) ± 4.2]. The prevalence of PIP was 61.0% (n = 175). Common instances of PIP were drugs prescribed beyond the recommended duration (n = 90, 31.4%), drugs prescribed without an evidence-based clinical indication (n = 78, 27.2%), proton pump inhibitors (PPIs) for > 8 weeks (n = 75, 26.0%), and acetylcholinesterase inhibitors with concurrent drugs that reduce heart rate (n = 60, 21.0%). Polypharmacy was observed in 82.6% (n = 237) of patients and was strongly associated with PIP (adjusted OR 24.1, 95% CI 9.0–64.5).

Conclusions

Findings have revealed a high prevalence of PIP among PwD in Saudi Arabia that is strongly associated with polypharmacy. Future research should aim to explore key stakeholders’ experiences and perspectives of medicines management to optimise medication use for this vulnerable patient population.
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Metadata
Title
Potentially inappropriate prescribing for people with dementia in ambulatory care: a cross-sectional observational study
Authors
Nahla A. Alageel
Carmel M. Hughes
Monira Alwhaibi
Walid Alkeridy
Heather E. Barry
Publication date
01-12-2024
Publisher
BioMed Central
Keywords
Dementia
Dementia
Published in
BMC Geriatrics / Issue 1/2024
Electronic ISSN: 1471-2318
DOI
https://doi.org/10.1186/s12877-024-04949-8

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