Evidence map›Paper›PMID 32972986›Full record

ArticleThe European respiratory journal2021

A high-risk airway mycobiome is associated with frequent exacerbation and mortality in COPD.

Pei Yee Tiew, Alison J Dicker, Holly R Keir, Mau Ern Poh, Sze Lei Pang, Micheál Mac Aogáin, Branden Qi Yu Chua, Jiunn Liang Tan, Huiying Xu, Mariko Siyue Koh and 7 more

Open access · bronzeAbstract readMulticenter Study
PubMed Publisher
In one paragraph

Article in The European respiratory journal, 2021. The graph could read no effect estimate from its abstract, so it casts no vote on the map. Cited by 59 papers.

0numbers the graph read from it
0cells of the map it votes in
59citing papers in PubMed
5.8field-weighted citation impact, top 3% 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

59 citing papers in PubMed, 79 citations in OpenAlex.

  1. Review
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  4. Differences in Clinical Characteristics of AECOPD Patients with or withoutInternational journal of chronic obstructive pulmonary disease · 2026
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  19. Correlation ofInternational journal of chronic obstructive pulmonary disease · 2025
    Article
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4 · The record

Corrections and comments

5 · Who and what money

Authors and funding

17 authors at 7 institutions in 3 countries.

Pei Yee TiewLee Kong Chian School of Medicine, Nanyang Technological University Singapore, Singapore.
Alison J DickerScottish Centre for Respiratory Research, University of Dundee, Ninewells Hospital and Medical School, Dundee, UK.
Holly R KeirScottish Centre for Respiratory Research, University of Dundee, Ninewells Hospital and Medical School, Dundee, UK.
Mau Ern PohDept of Medicine, Faculty of Medicine, University of Malaya, Kuala Lumpur, Malaysia.
Sze Lei PangDept of Biological Sciences, National University of Singapore, Singapore.ORCID https://orcid.org/0000-0001-8877-7532
Micheál Mac AogáinLee Kong Chian School of Medicine, Nanyang Technological University Singapore, Singapore.
Branden Qi Yu ChuaLee Kong Chian School of Medicine, Nanyang Technological University Singapore, Singapore.
Jiunn Liang TanDept of Medicine, Faculty of Medicine, University of Malaya, Kuala Lumpur, Malaysia.
Huiying XuDept of Respiratory and Critical Care Medicine, Tan Tock Seng Hospital, Singapore.
Mariko Siyue KohDept of Respiratory and Critical Care Medicine, Singapore General Hospital, Singapore.ORCID https://orcid.org/0000-0002-1230-0129
Augustine TeeDept of Respiratory and Critical Care Medicine, Changi General Hospital, Singapore.
John Arputhan AbisheganadenDept of Respiratory and Critical Care Medicine, Tan Tock Seng Hospital, Singapore.
Fook Tim ChewDept of Biological Sciences, National University of Singapore, Singapore.ORCID https://orcid.org/0000-0003-1337-5146
Bruce E MillerMedical Innovation, GSK R&D, Collegeville, PA, USA.
Ruth Tal-SingerMedical Innovation, GSK R&D, Collegeville, PA, USA.ORCID https://orcid.org/0000-0002-5275-8062
James D ChalmersScottish Centre for Respiratory Research, University of Dundee, Ninewells Hospital and Medical School, Dundee, UK.
Sanjay H ChotirmallLee Kong Chian School of Medicine, Nanyang Technological University Singapore, Singapore schotirmall@ntu.edu.sg.ORCID https://orcid.org/0000-0003-0417-7607
Nanyang Technological University · SGUniversity of Dundee · GBNational University of Singapore · SGTan Tock Seng Hospital · SGUniversity of Malaya · MYChangi General Hospital · SGSingapore General Hospital · SG

Funding

No grant is acknowledged in the PubMed record.

6 · The paper itself

Abstract

introductionThe chronic obstructive pulmonary disease (COPD) bacteriome associates with disease severity, exacerbations and mortality. While COPD patients are susceptible to fungal sensitisation, the role of the fungal mycobiome remains uncertain.

methodsWe report the largest multicentre evaluation of the COPD airway mycobiome to date, including participants from Asia (Singapore and Malaysia) and the UK (Scotland) when stable (n=337) and during exacerbations (n=66) as well as nondiseased (healthy) controls (n=47). Longitudinal mycobiome analysis was performed during and following COPD exacerbations (n=34), and examined in terms of exacerbation frequency, 2-year mortality and occurrence of serum specific IgE (sIgE) against selected fungi.

resultsA distinct mycobiome profile is observed in COPD compared with controls as evidenced by increased α-diversity (Shannon index; p<0.001). Significant airway mycobiome differences, including greater interfungal interaction (by co-occurrence), characterise very frequent COPD exacerbators (three or more exacerbations per year) (permutational multivariate ANOVA; adjusted p<0.001). Longitudinal analyses during exacerbations and following treatment with antibiotics and corticosteroids did not reveal any significant change in airway mycobiome profile. Unsupervised clustering resulted in two clinically distinct COPD groups: one with increased symptoms (COPD Assessment Test score) and

conclusionThe airway mycobiome in COPD is characterised by specific fungal genera associated with exacerbations and increased mortality.

Indexed as

MycobiomePulmonary Disease, Chronic ObstructiveAsiaDisease ProgressionHumansMalaysiaScotlandSingapore

Identifiers

PMID32972986
OpenAlexW3087860294

What OpenQuestion holds

Textmetadata
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.