Evidence map›Paper›PMID 40125072›Full record

ArticleInternational journal of chronic obstructive pulmonary disease2025

COPD Exacerbations, Air Pollutant Fluctuations, and Individual-Level Factors in the Pandemic Era.

Sahar Mikaeeli, Dany Doiron, Jean Bourbeau, Pei Zhi Li, Shawn D Aaron, Kenneth R Chapman, Paul Hernandez, François Maltais, Darcy D Marciniuk, Denis E O'Donnell and 6 more

Abstract read
PubMed Full text at PMC Publisher
In one paragraph

Article in International journal of chronic obstructive pulmonary disease, 2025. 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

16 authors.

Sahar MikaeeliRespiratory Epidemiology and Clinical Research Unit, Centre for Outcomes Research and Evaluation, Research Institute of the McGill University Health Centre (RI-MUHC), Montreal, Quebec, Canada.
Dany DoironRespiratory Epidemiology and Clinical Research Unit, Centre for Outcomes Research and Evaluation, Research Institute of the McGill University Health Centre (RI-MUHC), Montreal, Quebec, Canada.
Jean BourbeauRespiratory Epidemiology and Clinical Research Unit, Centre for Outcomes Research and Evaluation, Research Institute of the McGill University Health Centre (RI-MUHC), Montreal, Quebec, Canada.
Pei Zhi LiRespiratory Epidemiology and Clinical Research Unit, Centre for Outcomes Research and Evaluation, Research Institute of the McGill University Health Centre (RI-MUHC), Montreal, Quebec, Canada.
Shawn D AaronThe Ottawa Hospital Research Institute, University of Ottawa, Ottawa, Ontario, Canada.ORCID 0000-0002-4762-3542
Kenneth R ChapmanToronto General Hospital Research Institute, University of Toronto, Toronto, Ontario, Canada.
Paul HernandezDepartment of Medicine, Faculty of Medicine, Dalhousie University, Halifax, Nova Scotia, Canada.ORCID 0000-0003-2052-0102
François MaltaisInstitut Universitaire de Cardiologie et de Pneumologie de Québec, Université Laval, Québec, Québec, Canada.ORCID 0000-0002-6809-4651
Darcy D MarciniukRespiratory Research Centre and Division of Respirology, Critical Care and Sleep Medicine; University of Saskatchewan, Saskatoon, Saskatchewan, Canada.
Denis E O'DonnellDepartment of Medicine, Queen's University, Kingston, Ontario, Canada.
Don D SinCentre for Heart Lung Innovation, St. Paul's Hospital, University of British Columbia, Vancouver, British Columbia, Canada.ORCID 0000-0002-0756-6643
Brandie L WalkerDepartment of Medicine, University of Calgary, Calgary, Alberta, Canada.
Wan C TanCentre for Heart Lung Innovation, St. Paul's Hospital, University of British Columbia, Vancouver, British Columbia, Canada.ORCID 0000-0001-9289-3595
Simon RousseauMeakins-Christie Laboratories, Research Institute at McGill University Health Centre, Montreal, Canada.ORCID 0000-0002-8773-575X
Bryan A RossRespiratory Epidemiology and Clinical Research Unit, Centre for Outcomes Research and Evaluation, Research Institute of the McGill University Health Centre (RI-MUHC), Montreal, Quebec, Canada.ORCID 0000-0001-9974-7216
CanCOLD Collaborative Research Group and the Canadian Respiratory Research Network

Funding

No grant is acknowledged in the PubMed record.

6 · The paper itself

Abstract

Purpose: Pandemic-era associations between air pollutant exposures and exacerbations of chronic obstructive pulmonary disease (COPD) are under-explored. Given the considerable observed pandemic-era pollutant fluctuations, these associations were investigated along with possible individual-level risk factors. Patients and Methods: Participants with spirometry-confirmed COPD from Canadian Cohort Obstructive Lung Disease (CanCOLD) were included, with data collected before ("pre-pandemic") and during ("pandemic") the COVID-19 pandemic. Nitrogen dioxide (NO Results: NO Conclusion: O

Indexed as

Air PollutantsAir PollutionCOVID-19Pulmonary Disease, Chronic ObstructiveAgedCanadaDisease ProgressionFemaleHumansMaleMiddle AgedNitrogen DioxideOzonePandemicsParticulate MatterRisk AssessmentAir PollutantsNitrogen DioxideOzoneParticulate Matteracute exacerbations of chronic obstructive pulmonary diseaseambient air pollutionChronic obstructive pulmonary diseaseCOVID-19 pandemictotal oxidant concentration

Identifiers

PMID40125072
PMCPMC11928299

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.