Evidence map›Paper›PMID 32912168›Full record

SynthesisBMC pulmonary medicine2020

The global impact of Aspergillus infection on COPD.

Emily E Hammond, Charles S McDonald, Jørgen Vestbo, David W Denning

Open access · goldAbstract readSystematic Review
In one paragraph

Synthesis in BMC pulmonary medicine, 2020. The graph could read no effect estimate from its abstract, so it casts no vote on the map. Cited by 61 papers.

0numbers the graph read from it
0cells of the map it votes in
61citing papers in PubMed
1.4field-weighted citation impact, top 10% 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

61 citing papers in PubMed, 98 citations in OpenAlex.

  1. Diagnostic criteria for invasive pulmonary aspergillosis in COPD patients.American journal of respiratory and critical care medicine · 2026
    Article
  2. Article
  3. Article
  4. Article
  5. Multiplex on-chip detection ofFrontiers in bioengineering and biotechnology · 2026
    Article
  6. Association betweenFrontiers in immunology · 2026
    Article
  7. Article
  8. Article
  9. Article
  10. Review
  11. Article
  12. Human immunity to fungal infections.The Journal of experimental medicine · 2025
    Review
  13. Global, Regional, and National Burden of Pulmonary Fungal Infections 1990-2021.American journal of respiratory and critical care medicine · 2025
    Article
  14. Article
  15. Article
  16. Correlation ofInternational journal of chronic obstructive pulmonary disease · 2025
    Article
  17. Review
  18. Non-invasive monitoring ofFrontiers in cellular and infection microbiology · 2025
    Observational
  19. Article
  20. Article

1 more citing papers are in PubMed but not listed here.

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

4 authors at 2 institutions in 1 country.

Emily E HammondSchool of Medicine, University of Manchester, Manchester, UK.
Charles S McDonaldSchool of Medicine, University of Manchester, Manchester, UK.
Jørgen VestboDivision of Infection, Immunity and Respiratory Medicine, Faculty of Biology, Medicine and Health, University of Manchester and Manchester Academic Health Science Centre, Manchester, UK.
David W DenningDivision of Infection, Immunity and Respiratory Medicine, Faculty of Biology, Medicine and Health, University of Manchester and Manchester Academic Health Science Centre, Manchester, UK. ddenning@manchester.ac.uk.ORCID http://orcid.org/0000-0001-5626-2251
Manchester Academic Health Science Centre · GBUniversity of Manchester · GB

Funding

No grant is acknowledged in the PubMed record.

6 · The paper itself

Abstract

backgroundAdvanced chronic obstructive pulmonary disease (COPD) often leads to hospitalisation and invasive aspergillosis (IA) is a serious complication. Aspergillus sensitisation may worsen symptoms in COPD.

methodsWe identified published papers between January 2000 and May 2019 with > 50 subjects and GOLD criteria for grade II, III or IV (FEV1/FVC < 70% and FEV1 < 80%) using standardised criteria in multiple countries, to re-estimate the prevalence of COPD. Hospitalised COPD patients develop IA in 1.3-3.9%, based on positive cultures of Aspergillus spp. and radiological findings. Given limited data on per-patient annual hospitalisation rates, we assumed a conservative 10.5% estimate. Annual IA mortality in COPD was estimated using the literature rates of 43-72%. A separate literature search assessed the impact of Aspergillus sensitisation on severity of COPD (by FEV1).

resultsWe re-estimated the global prevalence of COPD GOLD stages II-IV at 552,300,599 people (7.39% of the population) with 339,206,893 (8.58%) in Asia, 85,278,783 (8.52%) in the Americas, 64,298,051 (5.37%) in Africa, 59,484,329 (7.77%) in Europe and 4,032,543 (10.86%) in Oceania. An estimated 57,991,563 (10.5%) people with COPD are admitted to hospital annually and of these 753,073 (1.3%) - 2,272,322 (3.9%) develop IA and 540,451-977,082 deaths are predicted annually. Aspergillus sensitisation prevalence in COPD was 13.6% (7.0-18.3%) and not related to lower predicted FEV1% (P > 0.05).

conclusionsThe prevalence of COPD is much higher than previously estimated. Overall COPD mortality may be higher than estimated and IA probably contributes to many deaths. Improved rapid diagnosis of IA using culture and non-culture based techniques is required in COPD hospital admissions to reduce mortality.

Indexed as

AspergillosisGlobal HealthHumansPulmonary Disease, Chronic ObstructiveAspergillusEmphysemaFungal infectionIncidenceSurvival

Identifiers

PMID32912168
PMCPMC7488557
OpenAlexW3084463324

What OpenQuestion holds

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LicenceCC BY
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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.