Evidence map›Paper›PMID 40300576›Full record

SynthesisNeuroepidemiology2026

All-Cause and Cause-Specific Mortality in Parkinson's Disease: A Meta-Analysis.

Young Ho Lee, Gwan Gyu Song

Abstract readMeta-AnalysisSystematic Review
In one paragraph

Synthesis in Neuroepidemiology, 2026. The graph could read no effect estimate from its abstract, so it casts no vote on the map. Cited by 2 papers.

0numbers the graph read from it
0cells of the map it votes in
2citing 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

2 citing papers in PubMed.

  1. Article
  2. 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

2 authors.

Young Ho LeeDepartment of Rheumatology, Korea University College of Medicine, Seoul, Republic of Korea, lyhcgh@korea.ac.kr.
Gwan Gyu SongDepartment of Rheumatology, Korea University College of Medicine, Seoul, Republic of Korea.

Funding

No grant is acknowledged in the PubMed record.

6 · The paper itself

Abstract

<p>Objectives: This study aimed to assess the overall and cause-specific standardized mortality ratios (SMRs) in patients diagnosed with Parkinson's disease (PD).

methodsA systematic review was conducted, focusing on studies that evaluated SMRs for all-causes and specific causes in PD patients compared to the general population. Searches were performed extensively in Medline, Embase, and Cochrane databases to compile relevant literature. A meta-analysis was subsequently conducted to evaluate all-cause, sex-specific, region-specific, and cause-specific SMRs in individuals with PD.

resultsTwenty-one studies including 26,114 PD patients and 10,247 deaths from 12 European, 4 Asian, 3 Oceanian, 1 North American, and 1 Middle Eastern country met the inclusion criteria. The overall SMR analysis revealed that PD patients exhibited a 1.617-fold higher risk of all-cause mortality compared to the general population (SMR 1.617, 95% confidence interval [CI] 1.295-2.020, p < 0.001). Region-specific analysis showed significant SMR increases across all regions. Sex-specific analysis indicated elevated SMRs for both women (SMR 1.702, 95% CI 1.426-2.033, p < 0.001) and men (SMR 1.588, 95% CI 1.365-1.848, p < 0.001). PD onset before 60 years of age was associated with a higher, albeit not statistically significant, SMR compared to onset after 60 (SMR 1.991, 95% CI 1.313-3.021 vs. SMR 1.589, 95% CI 1.109-2.277). Cause-specific analyses revealed significantly increased SMRs for pneumonia (SMR 3.414, 95% CI 2.227-5.234, p < 0.001), cerebrovascular accidents (CVAs) (SMR 1.484, 95% CI 1.048-2.102, p = 0.026), cardiovascular disease (SMR 1.449, 95% CI 1.156-1.816, p = 0.001), and suicide (SMR 2.049, 95% CI 1.383-3.035, p < 0.001), with no significant increase observed for cancer-related mortality.

conclusionThese findings highlight the increased mortality risk in PD patients, particularly due to causes such as pneumonia and CVA. </p>.

Indexed as

Parkinson DiseaseCause of DeathFemaleHumansMaleCause of deathMeta-analysisMortalityParkinson’s diseaseStandardized mortality ratio

Identifiers

PMID40300576
PMCPMC12140589

What OpenQuestion holds

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LicenceCC BY-NC
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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.