Evidence map›Paper›PMID 32421537›Full record

SynthesisRespiratory medicine2020

Chronic obstructive pulmonary disease is associated with severe coronavirus disease 2019 (COVID-19).

Giuseppe Lippi, Brandon Michael Henry

Open access · bronzeAbstract readLetterMeta-Analysis
PubMed Full text at PMC Publisher
In one paragraph

Synthesis in Respiratory medicine, 2020. The graph could read no effect estimate from its abstract, so it casts no vote on the map. Cited by 203 papers, 11 of them syntheses that pooled it.

0numbers the graph read from it
0cells of the map it votes in
203citing papers in PubMed, 11 pooled it
9.2field-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

203 citing papers in PubMed, 11 syntheses or guidelines pooled it, 405 citations in OpenAlex.

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  9. Toxic metal exposure as a possible risk factor for COVID-19 and other respiratory infectious diseases.Food and chemical toxicology : an international journal published for the British Industrial Biological Research Association · 2020
    Pooled it
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  20. Long-Term Effects of COVID-19 on Chronic Obstructive Pulmonary Disease.International journal of chronic obstructive pulmonary disease · 2025
    Article

143 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

2 authors at 2 institutions in 2 countries.

Giuseppe LippiSection of Clinical Biochemistry, Department of Neuroscience, Biomedicine and Movement, University of Verona, Verona, Italy.
Brandon Michael HenryCardiac Intensive Care Unit, The Heart Institute, Cincinnati Children's Hospital Medical Center, Ohio, USA. Electronic address: Brandon.henry@cchmc.org.
Cincinnati Children's Hospital Medical Center · USUniversity of Verona · IT

Funding

No grant is acknowledged in the PubMed record.

6 · The paper itself

Abstract

PubMed holds no abstract for this paper.

Indexed as

BetacoronavirusCoronavirus InfectionsCOVID-19HumansOdds RatioPandemicsPneumonia, ViralPulmonary Disease, Chronic ObstructiveSARS-CoV-2Chronic obstructive pulmonary diseaseCOPDCoronavirusCOVID-19

Identifiers

PMID32421537
PMCPMC7154502
OpenAlexW3012796370

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.