Evidence map›Paper›PMID 42426632›Full record

ArticleBMC geriatrics2026

Prevalence of delirium in German nursing homes: A cross-sectional study.

Alexandre Houdelet-Oertel, Jonas Dörner, Roberto Walter, Zafer Arslan, René Müller-Widmer, Petra Thürmann, Horst Christian Vollmar, Ina Otte, Rebecca Palm, Bernhard Holle

Abstract readMulticenter Study
In one paragraph

Article in BMC geriatrics, 2026. The graph could read no effect estimate from its abstract, so it casts no vote on the map. Not yet cited in PubMed.

0numbers the graph read from it
0cells of the map it votes in
0citing papers in PubMed
–field-weighted citation impact
1 · What the graph read from it

What it found

Each row is one number read from the abstract, on the scale the paper reported it, with its interval. Left of the dashed line favours the treatment, right favours the comparator. Under each row is the sentence it came from. New to these charts? A ten-minute tutorial.

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.

2 · The registry

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.

Neither the registry nor the abstract names a trial number. If this is a trial report, that itself is worth knowing.

3 · Its place in the literature

Who cites it

0 citing papers in PubMed.

No citing paper in PubMed yet.

4 · The record

Corrections and comments

PubMed lists nothing against this paper. Absence here is not a guarantee, only a check that was made.

5 · Who and what money

Authors and funding

10 authors.

Alexandre Houdelet-OertelGerman Center for Neurodegenerative Diseases (DZNE), Witten, Stockumer St. 12, Witten, 58453, Germany. Alexandre.Houdelet-Oertel@dzne.de.ORCID 0009-0007-1269-2074
Jonas DörnerGerman Center for Neurodegenerative Diseases (DZNE), Witten, Stockumer St. 12, Witten, 58453, Germany.ORCID 0000-0002-7631-9881
Roberto WalterGerman Center for Neurodegenerative Diseases (DZNE), Witten, Stockumer St. 12, Witten, 58453, Germany.ORCID 0000-0002-3350-8754
Zafer ArslanDepartment of Medicine, Chair of Clinical Pharmacology, Faculty of Health, Witten/Herdecke University, Alfred-Herrhausen-St. 45, Witten, 58455, Germany.ORCID 0000-0003-1021-7740
René Müller-WidmerGerman Center for Neurodegenerative Diseases (DZNE), Witten, Stockumer St. 12, Witten, 58453, Germany.
Petra ThürmannDepartment of Medicine, Chair of Clinical Pharmacology, Faculty of Health, Witten/Herdecke University, Alfred-Herrhausen-St. 45, Witten, 58455, Germany.ORCID 0000-0001-9724-1422
Horst Christian VollmarFaculty of Medicine, Institute of General Practice and Family Medicine (AM RUB), Ruhr University Bochum, Universitätsstr. 150, Bochum, 44801, Germany.ORCID 0000-0002-0117-7188
Ina OtteFaculty of Medicine, Department of Health Services Research, Institute for Diversity Medicine, Ruhr University Bochum, Universitätsstr. 150, Bochum, 44801, Germany.ORCID 0000-0003-0280-0899
Rebecca PalmSchool of Nursing Science, Faculty of Health, Witten/Herdecke University, Alfred- Herrhausen-St. 45, Witten, 58455, Germany.ORCID 0000-0002-4910-8413
Bernhard HolleGerman Center for Neurodegenerative Diseases (DZNE), Witten, Stockumer St. 12, Witten, 58453, Germany.ORCID 0000-0003-2549-7765

Funding

No grant is acknowledged in the PubMed record.

6 · The paper itself

Abstract

backgroundDelirium is a common geriatric syndrome. However, there is a lack of primary data regarding the prevalence of delirium in German nursing homes. The aim of this study was to assess the prevalence of delirium and its motor subtypes, and to identify factors associated with the prevalence of delirium among residents of German nursing homes.

methodsThis multicenter cross-sectional study was conducted in German nursing homes. Trained nurses collected data over a two-week period in April 2024. The participants were recruited via random sampling. The inclusion criteria were as follows: valid informed consent, age ≥ 65 years, and sufficient German language skills. The exclusion criteria were as follows: aphasia, coma, deafness, or end-of-life status. Delirium screening was conducted using the 4 'A's Test (4AT), and delirium subtypes were classified using the Delirium Motor Subtype Scale (DMSS).

resultsData from 415 residents across 33 of the 34 participating nursing homes were included in the analysis. Probable delirium (4AT score ≥ 4) was identified in 17.6% of the residents (95% confidence interval [CI]: 13.4-22.7). The results of the DMSS revealed that 43.1% of individuals with delirium presented with a nonmotor subtype (95% CI: 29.8-55.9), 25.0% presented with a hypoactive subtype (95% CI: 15.6-33.3), 18.1% presented with a hyperactive subtype (95% CI: 12.0-24.4), and 13.9% presented with a mixed subtype (95% CI: 6.5-21.3). Multivariate logistic regression analysis revealed that more severe neuropsychiatric symptoms (adjusted odds ratio [AOR] = 1.17, 95% CI: 1.04-1.32), prevalent pain behavior (AOR = 3.67, 95% CI: 1.51-8.93), a medical diagnosis of dementia (AOR = 2.01, 95% CI: 1.12-3.59), and living in the nursing home for ≥ 25 months (AOR = 2.74, 95% CI: 1.08-6.94) were associated with the prevalence of delirium.

conclusionThe findings of this study confirm previous research indicating that delirium is a widespread health issue among residents of nursing homes. Further research is needed to develop training programs focused on the detection and prevention of delirium in nursing homes as well as to enhance knowledge regarding the delirium subtypes. The routine use of simple and rapid screening tools by nurses should also be integrated into standard care.

Indexed as

DeliriumNursing HomesAgedAged, 80 and overCross-Sectional StudiesFemaleGermanyHumansMaleNursing Home ResidentsPrevalenceCross-Sectional StudiesDeliriumNursing homesPrevalenceRisk Factors

Identifiers

PMID42426632
PMCPMC13355355

What Socratic holds

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LicenceCC BY
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Registered trials

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Read under generation 80e0d062 · epoch 390. Bibliography from PubMed, PubMed Central and OpenAlex; grants from NIH RePORTER; trial links from ClinicalTrials.gov; estimates, votes and beliefs from the Socratic graph.