Evidence map›Paper›PMID 33844069›Full record

ArticleDiabetologia2021

Long-term metformin use and risk of pneumonia and related death in type 2 diabetes: a registry-based cohort study.

Aimin Yang, Mai Shi, Hongjiang Wu, Eric S H Lau, Ronald C W Ma, Alice P S Kong, Wing Yee So, Andrea O Y Luk, Juliana C N Chan, Elaine Chow

Open access · bronzeAbstract read
PubMed Publisher
In one paragraph

Article in Diabetologia, 2021. The graph could read no effect estimate from its abstract, so it casts no vote on the map. Cited by 17 papers.

0numbers the graph read from it
0cells of the map it votes in
17citing papers in PubMed
1.5field-weighted citation impact, top 17% 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

17 citing papers in PubMed, 26 citations in OpenAlex.

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  10. Diabetes Mellitus and Pneumococcal Pneumonia.Diagnostics (Basel, Switzerland) · 2024
    Review
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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

10 authors at 2 institutions in 2 countries.

Aimin YangDepartment of Medicine and Therapeutics, The Chinese University of Hong Kong, Prince of Wales Hospital, Shatin, Hong Kong Special Administrative Region, China.ORCID 0000-0003-2968-1762
Mai ShiDepartment of Medicine and Therapeutics, The Chinese University of Hong Kong, Prince of Wales Hospital, Shatin, Hong Kong Special Administrative Region, China.ORCID 0000-0002-2798-3268
Hongjiang WuDepartment of Medicine and Therapeutics, The Chinese University of Hong Kong, Prince of Wales Hospital, Shatin, Hong Kong Special Administrative Region, China.ORCID 0000-0003-2193-1114
Eric S H LauDepartment of Medicine and Therapeutics, The Chinese University of Hong Kong, Prince of Wales Hospital, Shatin, Hong Kong Special Administrative Region, China.ORCID 0000-0003-1581-5643
Ronald C W MaDepartment of Medicine and Therapeutics, The Chinese University of Hong Kong, Prince of Wales Hospital, Shatin, Hong Kong Special Administrative Region, China.ORCID 0000-0002-1227-803X
Alice P S KongDepartment of Medicine and Therapeutics, The Chinese University of Hong Kong, Prince of Wales Hospital, Shatin, Hong Kong Special Administrative Region, China.ORCID 0000-0001-8927-6764
Wing Yee SoHong Kong Hospital Authority Head Office, Kowloon, Hong Kong Special Administrative Region, China.ORCID 0000-0001-8078-7402
Andrea O Y LukDepartment of Medicine and Therapeutics, The Chinese University of Hong Kong, Prince of Wales Hospital, Shatin, Hong Kong Special Administrative Region, China.ORCID 0000-0002-5244-6069
Juliana C N ChanDepartment of Medicine and Therapeutics, The Chinese University of Hong Kong, Prince of Wales Hospital, Shatin, Hong Kong Special Administrative Region, China.ORCID 0000-0003-1325-1194
Elaine ChowDepartment of Medicine and Therapeutics, The Chinese University of Hong Kong, Prince of Wales Hospital, Shatin, Hong Kong Special Administrative Region, China. e.chow@cuhk.edu.hk.ORCID 0000-0002-4147-3387
Chinese University of Hong Kong · HKHospital Authority · HK

Funding

No grant is acknowledged in the PubMed record.

6 · The paper itself

Abstract

aims/hypothesisThe long-term effects of metformin in individuals with type 2 diabetes who are at increased risk of severe respiratory infections are unknown. This study aimed to evaluate the effects of metformin use on the risk of first pneumonia hospitalisation and pneumonia-related death in a cohort of Chinese individuals with type 2 diabetes.

methodsWe performed a retrospective analysis of a consecutive cohort of 22,638 individuals with type 2 diabetes in the Hong Kong Diabetes Register enrolled between 2001 and 2018, with follow-up until 31 December 2019. Overlap propensity-score weighting was performed to balance baseline characteristics.

resultsOf 22,638 individuals with type 2 diabetes, after excluding those who had not been prescribed any glucose-lowering drugs (GLDs) and/or with eGFR ≤30 ml min CONCLUSIONS/

interpretationLong-term use of metformin was associated with reduced risk of pneumonia and pneumonia-related death among Chinese individuals with diabetes. The relevance of these results to other respiratory infections merits further investigation.

Indexed as

Acidosis, LacticAdultAsian PeopleBlood GlucoseChinaCohort StudiesDiabetes Mellitus, Type 2FemaleFollow-Up StudiesGlomerular Filtration RateGlycated HemoglobinHospitalizationHumansHypoglycemic AgentsInfluenza VaccinesLipidsBlood GlucoseGlycated Hemoglobinhemoglobin A1c protein, humanHypoglycemic AgentsInfluenza VaccinesLipidsMetforminPneumococcal VaccinesDeathDiabetesMetforminOral glucose-lowering drugsPneumonia

Identifiers

PMID33844069
OpenAlexW3153727945

What OpenQuestion holds

Texttitle and abstract
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.