Evidence map›Paper›PMID 40611439›Full record

SynthesisAlzheimer's & dementia : the journal of the Alzheimer's Association2025

The prevalence of apathy in Lewy body dementia: A systematic review and meta-analysis.

Jenny Jia Yu, Kai Sin Chin, Paula M Loveland, Leonid Churilov, Samantha M Loi, Nawaf Yassi, Rosie Watson

Abstract readSystematic ReviewMeta-Analysis
In one paragraph

Synthesis in Alzheimer's & dementia : the journal of the Alzheimer's Association, 2025. The graph could read no effect estimate from its abstract, so it casts no vote on the map. Cited by 3 papers, 1 of them a synthesis that pooled it.

0numbers the graph read from it
0cells of the map it votes in
3citing papers in PubMed, 1 pooled it
–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

3 citing papers in PubMed, 1 synthesis or guideline pooled it.

  1. The prevalence of apathy in Lewy body dementia: A systematic review and meta-analysis.Alzheimer's & dementia : the journal of the Alzheimer's Association · 2025
    Pooled it
  2. Article
  3. Article
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

7 authors.

Jenny Jia YuMelbourne Brain Centre @ The Royal Melbourne Hospital, Department of Medicine, University of Melbourne, Parkville, Victoria, Australia.ORCID 0000-0002-2322-4563
Kai Sin ChinMelbourne Brain Centre @ The Royal Melbourne Hospital, Department of Medicine, University of Melbourne, Parkville, Victoria, Australia.
Paula M LovelandMelbourne Brain Centre @ The Royal Melbourne Hospital, Department of Medicine, University of Melbourne, Parkville, Victoria, Australia.
Leonid ChurilovMelbourne Brain Centre @ The Royal Melbourne Hospital, Department of Medicine, University of Melbourne, Parkville, Victoria, Australia.
Samantha M LoiNeuropsychiatry Centre, The Royal Melbourne Hospital, Parkville, Victoria, Australia.
Nawaf YassiMelbourne Brain Centre @ The Royal Melbourne Hospital, Department of Medicine, University of Melbourne, Parkville, Victoria, Australia.
Rosie WatsonMelbourne Brain Centre @ The Royal Melbourne Hospital, Department of Medicine, University of Melbourne, Parkville, Victoria, Australia.

Funding

National Health and Medical Research CouncilNovo NordiskOtsuka and LundbeckYulgilbar Foundation
6 · The paper itself

Abstract

introductionApathy is an important syndrome in Lewy body dementia (LBD), although reported prevalences vary. We aimed to estimate the prevalence of apathy in LBD through systematic review and meta-analysis.

methodsFive databases were searched for articles reporting the prevalence of apathy in LBD (dementia with Lewy bodies [DLB] and Parkinson's disease dementia [PDD]) and prodromal/mild cognitive impairment (MCI) LBD. Linear mixed model random effect meta-analysis was performed to determine the prevalence of apathy.

resultsOf 7846 articles identified, 49 met inclusion criteria. The average pooled prevalence of apathy was 57% (95% confidence interval [CI] 52%-63%, I DISCUSSION: Apathy affects more than half of individuals with LBD. The high prevalence in prodromal DLB supports the notion that apathy may assist in more timely and accurate diagnosis of DLB. HIGHLIGHTS: Reported apathy prevalence in Lewy body dementia (LBD) varies widely in the existing literature. The pooled prevalence of apathy was > 50% in LBD and > 40% in prodromal disease stages. Apathy may have utility in earlier, more accurate diagnosis of dementia with Lewy bodies.

Indexed as

ApathyLewy Body DiseaseCognitive DysfunctionHumansParkinson DiseasePrevalenceapathybehavioral and psychological symptoms of dementiaLewy body dementianeuropsychiatric symptomsParkinson's disease dementiaprodromal dementia with Lewy bodiessystematic review

Identifiers

PMID40611439
PMCPMC12226429

What OpenQuestion holds

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LicenceCC BY
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Registered trials

None linked

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 OpenQuestion graph.