Evidence map›Paper›PMID 30953517›Full record

ArticleRespiratory research2019

Metformin use mitigates the adverse prognostic effect of diabetes mellitus in chronic obstructive pulmonary disease.

Te-Wei Ho, Chun-Ta Huang, Yi-Ju Tsai, Angela Shin-Yu Lien, Feipei Lai, Chong-Jen Yu

Open access · goldFull text read
In one paragraph

Article in Respiratory research, 2019. The graph could read no effect estimate from its abstract, so it casts no vote on the map. Cited by 37 papers, 3 of them syntheses that pooled it.

0numbers the graph read from it
0cells of the map it votes in
37citing papers in PubMed, 3 pooled it
7.5field-weighted citation impact, top 2% 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

37 citing papers in PubMed, 3 syntheses or guidelines pooled it, 61 citations in OpenAlex.

  1. Pooled it
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  10. Extrapulmonary Comorbidities Associated with Chronic Obstructive Pulmonary Disease: A Review.International journal of chronic obstructive pulmonary disease · 2024
    Review
  11. Hyperglycaemia and Chronic Obstructive Pulmonary Disease.Diagnostics (Basel, Switzerland) · 2023
    Review
  12. Metformin Use Is Associated With Lower Mortality in Veterans With Diabetes Hospitalized With Pneumonia.Clinical infectious diseases : an official publication of the Infectious Diseases Society of America · 2023
    Article
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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

6 authors at 4 institutions in 1 country.

Te-Wei HoGraduate Institute of Biomedical Electronics and Bioinformatics, College of Electrical Engineering and Computer Science, National Taiwan University, Taipei, Taiwan.
Chun-Ta HuangDepartment of Internal Medicine, National Taiwan University Hospital, No. 7, Chung-Shan South Road, Taipei, 100, Taiwan. huangct@ntu.edu.tw.ORCID http://orcid.org/0000-0002-5234-4986
Yi-Ju TsaiGraduate Institute of Biomedical and Pharmaceutical Science, College of Medicine, Fu Jen Catholic University, New Taipei City, Taiwan.
Angela Shin-Yu LienSchool of Nursing, College of Medicine, Chang Gung University, Taoyuan City, Taiwan.
Feipei LaiGraduate Institute of Biomedical Electronics and Bioinformatics, College of Electrical Engineering and Computer Science, National Taiwan University, Taipei, Taiwan.
Chong-Jen YuDepartment of Internal Medicine, National Taiwan University Hospital, No. 7, Chung-Shan South Road, Taipei, 100, Taiwan.
National Taiwan University · TWChang Gung University · TWFu Jen Catholic University · TWNational Taiwan University Hospital · TW

Funding

Ministry of Science and Technology, Taiwan MOST 108-2634-F-002-015
6 · The paper itself

Abstract

BACKGROUND AND

objectiveAmong patients with chronic obstructive pulmonary disease (COPD), diabetes mellitus (DM) is a common comorbidity and is probably associated with increased systemic inflammation and worse prognosis. Metformin, with its pleiotropic anti-inflammatory and antioxidant actions, may offer theoretical benefits in COPD patients with DM. Thus, this study aimed to investigate the effects of DM and metformin use on mortality in the clinical trajectory of COPD.

methodsThis was a retrospective cohort study comprising patients with spirometry-confirmed COPD and an age of ≥40 years from 2008 to 2014. The primary outcome of interest was all-cause mortality. We evaluated the effects of DM on mortality through the clinical course of COPD and we also assessed the impact of metformin use on survival of the COPD population.

resultsAmong 4231 COPD patients, 556 (13%) had DM, and these patients had 1.62 times higher hazards of 2-year mortality than those without DM (95% confidence interval [CI], 1.15-2.28) after adjusting for age, gender, COPD stage, comorbidities and prior COPD hospitalization. Over a 2-year period, metformin users had a significantly lower risk of death (hazard ratio, 0.46; 95% CI, 0.23-0.92) compared with non-metformin users in patients with coexistent COPD and DM. Moreover, metformin users had similar survival to COPD patients without DM.

conclusionsThis study shows that DM is associated with an increased risk of death in COPD patients and metformin use seems to mitigate the hazard. Our findings suggest a potential role of metformin in the management of DM in COPD.

Indexed as

AgedAged, 80 and overCohort StudiesComorbidityDiabetes MellitusFemaleHumansHypoglycemic AgentsMaleMetforminMiddle AgedPrognosisPulmonary Disease, Chronic ObstructiveRetrospective StudiesHypoglycemic AgentsMetforminChronic obstructive pulmonary diseaseComorbidityDiabetes mellitusMetforminOutcome

Identifiers

PMID30953517
PMCPMC6451256
OpenAlexW2944792289

What OpenQuestion holds

Textfull text, public
LicenceCC BY
Read underepoch 390

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.