Evidence map›Paper›PMID 33568525›Full record

ReviewEuropean respiratory review : an official journal of the European Respiratory Society2021

The impact of outdoor air pollution on COVID-19: a review of evidence from

Thomas Bourdrel, Isabella Annesi-Maesano, Barrak Alahmad, Cara N Maesano, Marie-Abèle Bind

Open access · diamondAbstract readReview
In one paragraph

Review in European respiratory review : an official journal of the European Respiratory Society, 2021. The graph could read no effect estimate from its abstract, so it casts no vote on the map. Cited by 99 papers, 4 of them syntheses that pooled it.

0numbers the graph read from it
0cells of the map it votes in
99citing papers in PubMed, 4 pooled it
20.9field-weighted citation impact, top 1% 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

99 citing papers in PubMed, 4 syntheses or guidelines pooled it, 226 citations in OpenAlex.

  1. Pooled it
  2. Pooled it
  3. Pooled it
  4. Pooled it
  5. Trial
  6. Article
  7. Article
  8. Ambient Air Pollution and COVID-19 in California.Research report (Health Effects Institute) · 2026
    Article
  9. Observational
  10. Article
  11. Article
  12. Environmental Exposures and COVID-19 Experiences in the United States, 2020-2022.International journal of environmental research and public health · 2025
    Article
  13. Review
  14. Article
  15. Article
  16. Long-term air pollution exposure and the risk of primary graft dysfunction after lung transplantation.The Journal of heart and lung transplantation : the official publication of the International Society for Heart Transplantation · 2025
    Observational
  17. Review
  18. Article
  19. Review
  20. Fine particulate matter manipulates immune response to exacerbate microbial pathogenesis in the respiratory tract.European respiratory review : an official journal of the European Respiratory Society · 2024
    Review

39 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

5 authors at 4 institutions in 2 countries.

Thomas BourdrelMemory Resource and Research Center, Geriatrics Dept, University Hospital of Strasbourg, Strasbourg, France thomasbourdrel@yahoo.fr.
Isabella Annesi-MaesanoSorbonne Université, INSERM, Pierre Louis Institute of Epidemiology and Public Health, Epidemiology of Allergic and Respiratory Diseases Dept (EPAR), Saint-Antoine Medical School, Paris, France.
Barrak AlahmadDept of Environmental Health, Harvard T.H Chan School of Public Health, Boston, MA, USA.
Cara N MaesanoSorbonne Université, INSERM, Pierre Louis Institute of Epidemiology and Public Health, Epidemiology of Allergic and Respiratory Diseases Dept (EPAR), Saint-Antoine Medical School, Paris, France.
Marie-Abèle BindDept of Statistics, Faculty of Arts and Sciences, Harvard University, Cambridge, MA, USA.
Harvard University · USInserm · FRInstitut Pierre Louis d‘Épidémiologie et de Santé Publique · FRUniversité de Strasbourg · FR

Funding

Transporting established insights from classical experimental design to address causal questions in environmental epidemiology including the understanding of biological mediating mechanismsDP5OD021412 · OD · MASSACHUSETTS GENERAL HOSPITAL · PI BIND, MARIE-ABELE CATHERINE · 2016 to 2020
$2.1M
NIH HHS DP5 OD021412
6 · The paper itself

Abstract

Studies have pointed out that air pollution may be a contributing factor to the coronavirus disease 2019 (COVID-19) pandemic. However, the specific links between air pollution and severe acute respiratory syndrome-coronavirus-2 infection remain unclear. Here we provide evidence from

Indexed as

Air PollutantsAir PollutionAnimalsCOVID-19Environmental ExposureHost-Pathogen InteractionsHumansPrognosisRisk AssessmentRisk FactorsSARS-CoV-2Severity of Illness IndexAir Pollutants

Identifiers

PMID33568525
PMCPMC7879496
OpenAlexW3128253629

What OpenQuestion holds

Textmetadata
LicenceCC BY-NC
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.