Evidence map›Paper›PMID 42210238›Full record

ArticleRespiratory research2026

Asthma exacerbation risk after short-term air pollution exposure varies by age, sex, severity, and eosinophil count: East London cohort study.

Hajar Hajmohammadi, Paul E Pfeffer, Ian S Mudway, Christopher J Griffiths

Abstract read
In one paragraph

Article in Respiratory research, 2026. The graph could read no effect estimate from its abstract, so it casts no vote on the map. Not yet cited in PubMed.

0numbers the graph read from it
0cells of the map it votes in
0citing papers in PubMed
–field-weighted citation impact
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

0 citing papers in PubMed.

No citing paper in PubMed yet.

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.

Hajar HajmohammadiAsthma UK Centre for Applied Research, Centre for Primary Care, Wolfson Institute of Population Health, Faculty of Medicine and Dentistry, Queen Mary University of London, London, UK. h.hajmohammadi@qmul.ac.uk.
Paul E PfefferDepartment of Respiratory Medicine, Barts Health NHS Trust, London, UK.
Ian S MudwayMRC Centre for Environment and Health, School of Public Heath, Imperial College London, London, UK.
Christopher J GriffithsAsthma UK Centre for Applied Research, Centre for Primary Care, Wolfson Institute of Population Health, Faculty of Medicine and Dentistry, Queen Mary University of London, London, UK.

Funding

NIHR, school of primary care research (SPCR) 627
6 · The paper itself

Abstract

backgroundAir pollution is associated with asthma mortality and hospital admissions, yet few studies have focused on exacerbations managed in the community or which subgroups of asthma patients are most vulnerable. Identifying these groups is crucial for targeted public health interventions and clinical guidance.

methodsWe developed Poisson generalised regression models examining associations between short-term exposure to air pollutants (NO

resultsFor every interquartile range (IQR) increase in the preceding week's average exposure, the risk of OCS prescription increased by 5% for NO

conclusionShort-term exposure to NO

Indexed as

Air PollutantsAir PollutionAsthmaEnvironmental ExposureEosinophilsSeverity of Illness IndexAdolescentAdultAgedAged, 80 and overAge FactorsCohort StudiesCOVID-19Disease ProgressionFemaleHumansAir PollutantsAir pollutionAsthma exacerbationMedical records

Identifiers

PMID42210238
PMCPMC13220545

What OpenQuestion holds

Textmetadata
LicenceCC BY-NC-ND
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.