Cited by 156Air Quality and Health ImpactsAsthma and respiratory diseasesIndoor Air Quality and Microbial Exposure

The DOI matches its Crossref record; 45 of the 45 references it cites were found in a registry or an index.

Early life exposure to air pollution and incidence of childhood asthma, allergic rhinitis and eczema

Open access

Abstract

Rationale: There is growing evidence that air pollution may contribute to the development of childhood asthma and other allergic diseases. In this follow-up of the Toronto Child Health Evaluation Questionnaire (T-CHEQ) study, we examined associations between early life exposures to air pollution and incidence of asthma, allergic rhinitis and eczema from birth through adolescence. Methods: 1286 T-CHEQ participants were followed from birth until outcome (March 31, 2016) or loss to follow-up, with a mean of 17 years of follow-up. Concentrations of nitrogen dioxide (NO 2), ozone (O 3) and particulate matter with a 50% cut-off aerodynamic diameter of 2.5 µm (PM 2.5) from January 1, 1999 to December 31, 2012 were assigned to participants based on their postal codes at birth using ground observations, chemical/meteorological models, remote sensing and land-use regression models. Study outcomes included incidence of physician-diagnosed asthma, allergic rhinitis and eczema. Cox proportional hazard regression models were used to estimate hazard ratios per interquartile range of exposures and outcomes, adjusting for potential confounders. Results: Hazard ratios of 1.17 (95% CI 1.05–1.31) for asthma and 1.07 (95% CI 0.99–1.15) for eczema were observed for total oxidants (O 3 and NO 2) at birth. No significant increase in risk was found for PM 2.5. Conclusions: Exposures to oxidant air pollutants (O 3 and NO 2) but not PM 2.5 were associated with an increased risk of incident asthma and eczema in children. This suggests that improving air quality may contribute to the prevention of asthma and other allergic disease in childhood and adolescence.

Overview

The claims and statistics of this paper haven’t been checked yet.

Run the check — free, no account needed. It reads the open-access text and checks the sources it cites.

A few free checks a day · papers already verified open instantly · results are public

Integrity signals

Registry

Crossref · 10.1183/13993003.00913-2019

Cites

45 of 45 references verified0 citation errors · 0 not checkable

Statistics

Figures

FIGURE 1 Distribution of asthma, allergic rhinitis and eczema in the study cohort. Data are presented as n (%) or n. Groups are not mutually exclusive. Percentages are calculated of the total.
FIGURE 1 Distribution of asthma, allergic rhinitis and eczema in the study cohort. Data are presented as n (%) or n. Groups are not mutually exclusive. Percentages are calculated of the total.CC BY-NC · PubMed Central
FIGURE 2 Forest plot of hazard ratios (95% CI) for a) asthma, b) allergic rhinitis and c) eczema by air pollutants and Normalised Difference Vegetation Index (NDVI) from multivariable multi-pollutant Cox regression models. #: oxidants=((1.07×NO2)+(2.075×O3))/3.145.
FIGURE 2 Forest plot of hazard ratios (95% CI) for a) asthma, b) allergic rhinitis and c) eczema by air pollutants and Normalised Difference Vegetation Index (NDVI) from multivariable multi-pollutant Cox regression models. #: oxidants=((1.07×NO2)+(2.075×O3))/3.145.CC BY-NC · PubMed Central

Verification

Claims the paper makes

The claims and statistics of this paper haven’t been checked yet.

Run the check — free, no account needed. It reads the open-access text and checks the sources it cites.

A few free checks a day · papers already verified open instantly · results are public

Claims other papers make about this one

Each is checked against this paper’s own text: does it say what the citing paper says it does?

Self-check

Percentages, sums and reported differences re-computed from the paper’s own numbers.

The self-check needs the paper’s full text.

Citations

Cites

Show all 45 references

Cited by

Sorted by citations

See all 156

Metadata

Authors
To, T., Zhu, J., Stieb, D., Gray, N., Fong, I., Pinault, L., Jerrett, M., Robichaud, A., Ménard, R., van Donkelaar, A., Martin, R. V., Hystad, P., Brook, J. R., & Dell, S.
Affiliations
  • University of Toronto (CA)
  • Hospital for Sick Children (CA)
  • Statistics Canada (CA)
  • University of California, Los Angeles (US)
  • Environment and Climate Change Canada (CA)
  • Dalhousie University (CA)
  • Oregon State University (US)
Corresponding author
To, Teresa
Venue
European Respiratory Journal
Published
2019-12-05
Volume
55
Issue
2
Pages
1900913
ISSN
  • 0903-1936 (ISSN-L)
  • 1399-3003
OpenAlex
W2992180822
Cited by
156
References
45
Citations by year
2026: 12 · 2025: 18 · 2024: 29 · 2023: 31 · 2022: 24 · 2021: 28 · 2020: 14
FWCI
7.13
Type
journal article
Language
en
Open access
Locations
  • European Respiratory Journal (publishedVersion, cc-by-nc)
  • PubMed Central (publishedVersion, cc-by-nc)
  • PubMed (publishedVersion)
Funders
Health Canada (HT421-163216/001/SS)
Topics
  • Physical Sciences › Environmental Science › Health, Toxicology and Mutagenesis › Air Quality and Health Impacts
  • Health Sciences › Medicine › Pulmonary and Respiratory Medicine › Asthma and respiratory diseases
  • Physical Sciences › Environmental Science › Health, Toxicology and Mutagenesis › Indoor Air Quality and Microbial Exposure
Keywords
air pollution, childhood asthma, allergic rhinitis, atopic dermatitis, early life exposure, nitrogen dioxide, ozone, PM2.5, allergic diseases, air quality, land use regression
MeSH terms
Adolescent, Air Pollutants, Air Pollution, Asthma, Child, Eczema, Environmental Exposure, Humans, Infant, Newborn, Nitrogen Dioxide, Incidence, Particulate Matter, Rhinitis, Allergic

About these checks

Registry, retraction, Cites and statistics results are computed, not judged, with one exception: a printed reference that no index lists is read once by a model before it counts as a citation error. Claims are extracted by a model and kept only when their quote appears verbatim in the text; each cited source is then checked, with a model’s help, for whether it says what the claim relies on. Those verdicts can be wrong — read the claim’s quote and the cited source before relying on one.

Statistics and arithmetic are recomputed, not judged.

Confidence bands are shown only for fields calibrated on our annotated test set. None is calibrated yet, so no band is shown.

What counts as a claim ›How we measure confidence ›How we check this ›

Are you an author, or do you see a problem with this page? Request a review