Evidence map›Paper›PMID 39236309›Full record

SynthesisEuropean journal of neurology2024

Risk of aspiration pneumonia and hospital mortality in Parkinson disease: A systematic review and meta-analysis.

Wei Yu Chua, Jia Dong James Wang, Claire Kar Min Chan, Ling-Ling Chan, Eng-King Tan

Abstract readSystematic ReviewMeta-Analysis
In one paragraph

Synthesis in European journal of neurology, 2024. The graph could read no effect estimate from its abstract, so it casts no vote on the map. Cited by 16 papers, 2 of them syntheses that pooled it.

0numbers the graph read from it
0cells of the map it votes in
16citing papers in PubMed, 2 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

16 citing papers in PubMed, 2 syntheses or guidelines pooled it.

  1. Pooled it
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  3. Patterns of spontaneous saliva swallowings during awake and sleep states in Parkinson's disease.Neurological sciences : official journal of the Italian Neurological Society and of the Italian Society of Clinical Neurophysiology · 2026
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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

5 authors.

Wei Yu ChuaYong Loo Lin School of Medicine, National University of Singapore, Singapore.ORCID 0000-0002-8580-4141
Jia Dong James WangLee Kong Chian School of Medicine, Nanyang Technological University, Singapore.
Claire Kar Min ChanYong Loo Lin School of Medicine, National University of Singapore, Singapore.ORCID 0000-0002-0265-2809
Ling-Ling ChanDepartment of Diagnostic Radiology, Singapore General Hospital Campus, Singapore.
Eng-King TanDepartment of Diagnostic Radiology, Singapore General Hospital Campus, Singapore.

Funding

National Medical Research Council OF-LCG000207
6 · The paper itself

Abstract

background and purposeThis study was undertaken to conduct a meta-analysis on the prevalence of aspiration pneumonia (AP) and hospital mortality in Parkinson disease (PD) as well as the risk of AP in PD patients compared to controls.

methodsWe searched MEDLINE and Embase from inception to 19 March 2024 to identify cross-sectional, cohort, and case-control studies comparing the frequency of AP and hospital mortality in PD patients. We computed risk ratios (RRs) with accompanying 95% confidence intervals (CIs) for each study and pooled the results using a random-effects meta-analysis.

resultsA total of 781 studies were initially screened, and 13 studies involving 541,785,587 patients were included. Patients with PD had >3 times higher risk of AP compared to controls (RR = 3.30, 95% CI = 1.82-6.00, p < 0.0001). This increased risk was similar in both cohort studies (RR = 3.01, 95% CI = 1.10-8.24, p = 0.03) and case-control studies (RR = 3.86, 95% CI = 3.84-3.87, p < 0.00001). The prevalence of AP in 12 studies was 2.74% (95% CI = 1.69-4.41), and hospital mortality was 10% in six studies (10.0%, 95% CI = 5.32-18.0). Prevalence of AP was higher in studies with smaller sample size (5.26%, 95% CI = 3.08-8.83 vs. 2.06%, 95% CI = 1.19-3.55, p = 0.02).

conclusionsOur meta-analysis showed that patients with PD had >3 times higher risk of AP, with an average 2.74% prevalence and 10.0% hospital mortality. Early recognition and treatment of AP in PD patients will help reduce morbidity and mortality. A multidisciplinary holistic approach is needed to address the multifactorial causes of AP.

Indexed as

Hospital MortalityParkinson DiseasePneumonia, AspirationHumansaspiration pneumoniahospital mortalitymeta‐analysisParkinson disease

Identifiers

PMID39236309
PMCPMC11555015

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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 OpenQuestion graph.