Evidence map›Paper›PMID 36128015›Full record

ArticleInternational journal of chronic obstructive pulmonary disease2022

The Influence of Influenza Virus Infections in Patients with Chronic Obstructive Pulmonary Disease.

Kuang-Ming Liao, Yi-Ju Chen, Chuan-Wei Shen, Shao-Kai Ou, Chung-Yu Chen

Open access · goldAbstract read
In one paragraph

Article in International journal of chronic obstructive pulmonary disease, 2022. The graph could read no effect estimate from its abstract, so it casts no vote on the map. Cited by 18 papers, 1 of them a synthesis that pooled it.

0numbers the graph read from it
0cells of the map it votes in
18citing papers in PubMed, 1 pooled it
3.5field-weighted citation impact, top 6% of its field
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

18 citing papers in PubMed, 1 synthesis or guideline pooled it, 26 citations in OpenAlex.

  1. Pooled it
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  7. A Proposed Checklist for Optimizing COPD Patient Discharge Processes in Italian Internal Medicine Wards.International journal of chronic obstructive pulmonary disease · 2026
    Review
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  11. Observational
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  18. Observational
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 at 2 institutions in 1 country.

Kuang-Ming LiaoDepartment of Internal Medicine, Chi Mei Medical Center, Chiali, Taiwan.ORCID 0000-0003-4364-8248
Yi-Ju ChenSchool of Pharmacy, Kaohsiung Medical University, Kaohsiung, Taiwan.ORCID 0000-0001-6106-0988
Chuan-Wei ShenSchool of Pharmacy, Kaohsiung Medical University, Kaohsiung, Taiwan.ORCID 0000-0003-4503-5795
Shao-Kai OuSchool of Pharmacy, Kaohsiung Medical University, Kaohsiung, Taiwan.
Chung-Yu ChenSchool of Pharmacy, Kaohsiung Medical University, Kaohsiung, Taiwan.ORCID 0000-0001-7206-3957
Kaohsiung Medical University · TWChi Mei Medical Center · TW

Funding

No grant is acknowledged in the PubMed record.

6 · The paper itself

Abstract

Introduction: Chronic obstructive pulmonary disease (COPD) is a common disease and is preventable and treatable. A previous study showed that influenza virus infections were also associated with the risk of acute exacerbation in patients with COPD, and other studies showed that the influenza virus might increase the risk of stroke. However, studies on the influence of influenza infection among COPD patients are limited. In this study, we review the role of influenza infection in contributing to mortality, pneumonia, respiratory failure, COPD acute exacerbation, and ischemic stroke among COPD patients. Materials and Methods: We performed a population-based cohort study of COPD patients using data from Taiwan between January 1, 2011, and December 31, 2019. We excluded patients with lung cancer, lung transplantation and asthma. We also excluded patients who lacked COPD medication prescriptions and those treated with anti-influenza drugs without flu diagnosis records. Patients with missing or incomplete data were also excluded from the study cohort. Results: After 1:1 matching by age, sex, COPD duration, diagnosed years and comorbidities, we enrolled 10,855 cases and controls for further analysis. The risks of pneumonia, respiratory failure, COPD acute exacerbation, and ischemic stroke were 1.770 (95% CI=1.638-1.860; P<0.0001), 1.097 (95% CI=1.008-1.194; P=0.0319), 1.338 (95% CI=1.248-1.435; P<0.0001), and 1.134 (95% CI=1.039-1.239, P=0.0051), respectively, in the influenza infection group compared with COPD patients without influenza infection. Conclusion: Influenza infections are linked to an increased risk of ischemic stroke, pneumonia, respiratory failure, and COPD acute exacerbation among COPD patients. In conclusion, patients with COPD need to be closely monitored after having an influenza infection.

Indexed as

Influenza, HumanIschemic StrokePneumoniaPulmonary Disease, Chronic ObstructiveRespiratory InsufficiencyCohort StudiesHumansacute exacerbationchronic obstructive pulmonary diseaseinfluenza viruspneumoniarespiratory failurestroke

Identifiers

PMID36128015
PMCPMC9482787
OpenAlexW4296804187

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.