Evidence map›Paper›PMID 40751465›Full record

ArticleJournal of clinical hypertension (Greenwich, Conn.)2025

Influenza Vaccination and Short-Term Risk of Stroke Among Elderly Patients With Chronic Comorbidities in a Population-Based Cohort Study.

Yuheng Wang, Wenli Xu, Chenyang Jin, Siyuan Wang, Qinghua Yan, Fei Wu, Zhuoying Huang, Kangpei Yu, Minna Cheng, Yan Shi

Abstract read
In one paragraph

Article in Journal of clinical hypertension (Greenwich, Conn.), 2025. 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

10 authors.

Yuheng WangDepartment of Chronic Non-Communicable Diseases and Injury, Shanghai Municipal Center for Disease Control & Prevention, Shanghai, China.
Wenli XuDepartment of Chronic Non-Communicable Diseases and Injury, Shanghai Municipal Center for Disease Control & Prevention, Shanghai, China.ORCID 0009-0000-1458-4797
Chenyang JinDepartment of Epidemiology, School of Public Health, Fudan University, Shanghai, China.
Siyuan WangDepartment of Chronic Non-Communicable Diseases and Injury, Shanghai Municipal Center for Disease Control & Prevention, Shanghai, China.ORCID 0009-0006-1826-9990
Qinghua YanDepartment of Chronic Non-Communicable Diseases and Injury, Shanghai Municipal Center for Disease Control & Prevention, Shanghai, China.
Fei WuDepartment of Chronic Non-Communicable Diseases and Injury, Shanghai Municipal Center for Disease Control & Prevention, Shanghai, China.
Zhuoying HuangDepartment of Chronic Non-Communicable Diseases and Injury, Shanghai Municipal Center for Disease Control & Prevention, Shanghai, China.
Kangpei YuDivision of Social Sciences, Duke Kunshan University, Shanghai, China.
Minna ChengDepartment of Chronic Non-Communicable Diseases and Injury, Shanghai Municipal Center for Disease Control & Prevention, Shanghai, China.
Yan ShiDepartment of Chronic Non-Communicable Diseases and Injury, Shanghai Municipal Center for Disease Control & Prevention, Shanghai, China.

Funding

Noncommunicable Chronic Diseases-National Science and Technology Major Project 2024ZD05242006Shanghai Municipal Health Commission 201840334Shanghai Municipal Health Commission GWVI-11.1-27
6 · The paper itself

Abstract

The protective effect of influenza vaccination on stroke risk has been inconclusive. In this study, we aimed to investigate the impact of influenza vaccination on the 1-year risk of stroke in individuals aged 60 years and older with COPD and hypertension or diabetes mellitus. We conducted a retrospective cohort study in four districts of Shanghai, China, from August 2017 to July 2019. Data were collected from various information systems related to chronic disease management, cardiovascular reporting, and immunizations. The incidence of stroke within 1 year was compared between vaccinated and unvaccinated chronic disease patients. Cox proportional hazards regression was used to calculate hazard ratios (HRs). Sensitivity analysis was performed using the Poisson regression model to examine the association between influenza vaccination and stroke incidence, and propensity score matching was employed to address confounding. We found that influenza vaccination was associated with a lower risk of stroke during the two influenza seasons, 2017-2018 (adjusted HR, 0.27; 95% CI, 0.10-0.73) and 2018-2019 (adjusted HR, 0.46; 95% CI, 0.21-1.02). The results from the Poisson regression model (RR, 0.26; 95% CI, 0.10-0.70) were consistent with those obtained from the Cox model analysis. The reduction in stroke risk associated with influenza vaccination ranged from 54% to 73%. Our findings suggest that influenza vaccination is associated with a lower 1-year risk of stroke in individuals with chronic illnesses, compared to those who are not vaccinated.

Indexed as

HypertensionInfluenza, HumanInfluenza VaccinesPulmonary Disease, Chronic ObstructiveStrokeVaccinationAgedAged, 80 and overChinaChronic DiseaseCohort StudiesComorbidityDiabetes MellitusFemaleHumansIncidenceInfluenza Vaccineschronic illnesselderlyinfluenza vaccinationstroke

Identifiers

PMID40751465
PMCPMC12317327

What OpenQuestion holds

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LicenceCC BY-NC-ND
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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.