Evidence map›Paper›PMID 37131862›Full record

ArticleThe Lancet regional health. Europe2023

Ambient air pollution exposure linked to long COVID among young adults: a nested survey in a population-based cohort in Sweden.

Zhebin Yu, Sandra Ekström, Tom Bellander, Petter Ljungman, Göran Pershagen, Kristina Eneroth, Inger Kull, Anna Bergström, Antonios Georgelis, Massimo Stafoggia and 3 more

Open access · goldAbstract read
In one paragraph

Article in The Lancet regional health. Europe, 2023. The graph could read no effect estimate from its abstract, so it casts no vote on the map. Cited by 22 papers, 1 of them a synthesis that pooled it.

0numbers the graph read from it
0cells of the map it votes in
22citing papers in PubMed, 1 pooled it
5.6field-weighted citation impact, top 4% 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

22 citing papers in PubMed, 1 synthesis or guideline pooled it, 27 citations in OpenAlex.

  1. Impact of air pollution on COVID-19 severity: a systematic review of underlying biological mechanisms.European respiratory review : an official journal of the European Respiratory Society · 2025
    Pooled it
  2. The triple-hit hypothesis: exploring pulmonary e-cigarette, PMEuropean respiratory review : an official journal of the European Respiratory Society · 2026
    Review
  3. Review
  4. Ambient Air Pollution and COVID-19 in California.Research report (Health Effects Institute) · 2026
    Article
  5. Article
  6. Article
  7. Article
  8. Article
  9. Article
  10. Article
  11. Article
  12. Article
  13. Article
  14. Article
  15. Article
  16. COVID-19 vaccine uptake among young adults: Influence of asthma and sociodemographic factors.The journal of allergy and clinical immunology. Global · 2024
    Article
  17. Review
  18. Investigating distributions of inhaled aerosols in the lungs of post-COVID-19 clusters through a unified imaging and modeling approach.European journal of pharmaceutical sciences : official journal of the European Federation for Pharmaceutical Sciences · 2024
    Article
  19. Article
  20. Review
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

13 authors at 2 institutions in 1 country.

Zhebin YuInstitute of Environmental Medicine, Karolinska Institutet, Stockholm, Sweden.
Sandra EkströmInstitute of Environmental Medicine, Karolinska Institutet, Stockholm, Sweden.
Tom BellanderInstitute of Environmental Medicine, Karolinska Institutet, Stockholm, Sweden.
Petter LjungmanInstitute of Environmental Medicine, Karolinska Institutet, Stockholm, Sweden.
Göran PershagenInstitute of Environmental Medicine, Karolinska Institutet, Stockholm, Sweden.
Kristina EnerothInstitute of Environmental Medicine, Karolinska Institutet, Stockholm, Sweden.
Inger KullDepartment of Clinical Sciences and Education, Södersjukhuset, Karolinska Institutet, Stockholm, Sweden.
Anna BergströmInstitute of Environmental Medicine, Karolinska Institutet, Stockholm, Sweden.
Antonios GeorgelisInstitute of Environmental Medicine, Karolinska Institutet, Stockholm, Sweden.
Massimo StafoggiaInstitute of Environmental Medicine, Karolinska Institutet, Stockholm, Sweden.
Olena GruzievaInstitute of Environmental Medicine, Karolinska Institutet, Stockholm, Sweden.
Erik MelénDepartment of Clinical Sciences and Education, Södersjukhuset, Karolinska Institutet, Stockholm, Sweden.
BAMSE COVID-19 Study Group
Karolinska Institutet · SEDanderyds sjukhus · SE

Funding

No grant is acknowledged in the PubMed record.

6 · The paper itself

Abstract

Background: Post COVID-19 conditions, also known as long COVID, are of public health concern, but little is known about their underlying risk factors. We aimed to investigate associations of air pollution exposure with long COVID among Swedish young adults. Methods: We used data from the BAMSE (Children, Allergy, Environment, Stockholm, Epidemiology [in Swedish]) cohort. From October 2021 to February 2022 participants answered a web-questionnaire focusing on persistent symptoms following acute SARS-CoV-2 infection. Long COVID was defined as symptoms after confirmed infection with SARS-CoV-2 lasting for two months or longer. Ambient air pollution levels (particulate matter ≤2.5 μm [PM Findings: A total of 753 participants with SARS-CoV-2 infection were included of whom 116 (15.4%) reported having long COVID. The most common symptoms were altered smell/taste (n = 80, 10.6%), dyspnea (n = 36, 4.8%) and fatigue (n = 34, 4.5%). Median annual PM Interpretation: Ambient long-term PM Funding: The study received funding from the Swedish Research Council (grant no. 2020-01886, 2022-06340), the Swedish Research Council for Health, Working life and Welfare (FORTE grant no. 2017-01146), the Swedish Heart-Lung Foundation, Karolinska Institute (no. 2022-01807) and Region Stockholm (ALF project for cohort and database maintenance).

Indexed as

Air pollutionLong COVIDPM2.5Young adults

Identifiers

PMID37131862
PMCPMC9989696
OpenAlexW4323572426

What OpenQuestion holds

Textmetadata
LicenceCC BY
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.