Observational studyInternational journal of clinical pharmacy2023
Association of drug burden index with delirium in community-dwelling older adults with dementia: a longitudinal observational study.
Observational study in International journal of clinical pharmacy, 2023. The graph could read no effect estimate from its abstract, so it casts no vote on the map. It is linked to trial NCT04973709 (Gulhane Training and Research Hospital), which is not on this map. Cited by 7 papers, 1 of them a synthesis that pooled it.
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The abstract states no effect estimate the extractor could read, or names no intervention and outcome on the map, so this paper lights no cell and moves no belief. It is still indexed, cited and linked below.
The trial behind it
Trials whose registry record cites this paper, or whose number appears in the abstract. A trial that started after this paper was published is citing it as background, not reporting it.
Gulhane Training and Research Hospital
Who cites it
7 citing papers in PubMed, 1 synthesis or guideline pooled it, 8 citations in OpenAlex.
- Delirium among older adults living at home: a systematic review of prevalence, incidence, and risk factors.The British journal of general practice : the journal of the Royal College of General Practitioners · 2025Pooled it
- Cumulative Anticholinergic Burden and Risk of Delirium Among Older Adults with Alzheimer's Disease.Pharmacy (Basel, Switzerland) · 2026Article
- Theoretical impact of a mobile team dedicated to patients with Alzheimer's disease and related dementias on medication exposure in community-dwelling older patients (MEMORIAS study).BMC geriatrics · 2026Article
- Prevalence of delirium in German nursing homes: protocol for a cross-sectional study.BMJ open · 2025Article
- Article
- Novel opportunities for clinical pharmacy research: development of a machine learning model to identify medication related causes of delirium in different patient groups.International journal of clinical pharmacy · 2024Article
- The prevalence and incidence of delirium superimposed on dementia in community settings: A systematic review and meta-analysis.Alzheimer's & dementia (Amsterdam, Netherlands)Review
Corrections and comments
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Authors and funding
3 authors at 1 institution in 2 countries.
Funding
No grant is acknowledged in the PubMed record.
Abstract
backgroundThe Drug Burden Index (DBI) is a validated tool for assessing the dose-dependent cumulative exposure to sedative and anticholinergic medications. However, the increased risk of delirium superimposed dementia (DSD) with high DBI levels has not yet been investigated.
aimThis study aimed to examine the potential association between DBI scores and delirium in community-dwelling older adults with dementia.
methodA total of 1105 participants with cognitive impairment underwent a comprehensive geriatric assessment. Experienced geriatricians made the final diagnosis of delirium based on DSM-IV-TR and DSM-V. We calculated the DBI as the sum of all sedatives and anticholinergics taken continuously for at least four weeks before admission. Polypharmacy was defined as regular use of five or more medications. We classified the participants as having no exposure (DBI = 0), low exposure (0 < DBI < 1), and high exposure (DBI ≥ 1).
resultsOf the 721 patients with dementia, the mean age was 78.3 ± 6.7 years, and the majority were female (64.4%). In the whole sample, low and high exposures to anticholinergic and sedative medications at admission were 34.1% (n = 246) and 38.1% (n = 275), respectively. Patients in the high-exposure group had higher physical impairment (p = 0.01), higher polypharmacy (p = 0.01), and higher DBI scores (p = 0.01). In the multivariate Cox regression analysis, high exposure to anticholinergic and sedative medications increased the risk of delirium 4.09-fold compared to the no exposure group (HR = 4.09, CI: 1.63-10.27, p = 0.01).
conclusionHigh exposure to drugs with sedative and anticholinergic properties was common in community-dwelling older adults. A high DBI was associated with DSD, highlighting the need for an optimal prescription in this vulnerable population.
trial registrationThe trial was retrospectively registered at ClinicalTrials.gov. Identifier: NCT04973709 Registered on 22 July 2021.
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