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Cited by 346

The DOI matches its Crossref record; 26 of the 26 references it cites were found in a registry or an index.

Personal exposure to nitrogen dioxide (NO2) and the severity of virus-induced asthma in children

Open access
Chauhan, AJ, Inskip, Hazel M, Linaker, Catherine H, Smith, Sandra, Schreiber, Jacqueline, Johnston, Sebastian L, Holgate, Stephen T·2003·The Lancet
DOI 10.1016/s0140-6736(03)13582-9
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Abstract

Summary Background A link between exposure to the air pollutant nitrogen dioxide (NO2) and respiratory disease has been suggested. Viral infections are the major cause of asthma exacerbations. We aimed to assess whether there is a relation between NO2 exposure and the severity of asthma exacerbations caused by proven respiratory viral infections in children. Methods A cohort of 114 asthmatic children aged between 8 and 11 years recorded daily upper and lower respiratory-tract symptoms, peak expiratory flow (PEF), and measured personal NO2 exposures every week for up to 13 months. We took nasal aspirates during reported episodes of upper respiratory-tract illness and tested for infection by common respiratory viruses and atypical bacteria with RT-PCR assays. We used generalised estimating equations to assess the relation between low (<7·5 μg/m3), medium (7·5–14 μg/m3), and high (>14 μg/m3) tertiles of NO2 exposure in the week before or after upper respiratory-tract infection and the severity of asthma exacerbation in the week after the start of an infection. Findings One or more viruses were detected in 78% of reported infection episodes, and the medians of NO2 exposure were 5 (IQR 3·6–6·3), 10 (8·7–12·0), and 21 μg/m3 (16·8–42·9) for low, medium, and high tertiles, respectively. There were significant increases in the severity of lower respiratory-tract symptom scores across the three tertiles (0·6 for all viruses [p=0·05] and >2 for respiratory syncytial virus [p=0·01]) and a reduction in PEF of more than 12 L/min for picornavirus (p=0·04) for high compared with low NO2 exposure before the start of the virus-induced exacerbation. Interpretation High exposure to NO2 in the week before the start of a respiratory viral infection, and at levels within current air quality standards, is associated with an increase in the severity of a resulting asthma exacerbation.

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Metadata

Authors
Chauhan, A., Inskip, H. M., Linaker, C. H., Smith, S., Schreiber, J., Johnston, S. L., & Holgate, S. T.
Venue
The Lancet
Publisher
Elsevier BV
Published
2003-06
Volume
361
Issue
9373
Pages
1939-1944
ISSN
  • 0099-5355 (ISSN-L)
  • 0140-6736
DOI
10.1016/s0140-6736(03)13582-9
OpenAlex
W2165672101
Cited by
346
References
26
FWCI
17.67
Type
journal article
Language
en
Open access
bronze

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CoChat. (2026). Citation check: Personal exposure to nitrogen dioxide (NO2) and the severity of virus-induced asthma in children. https://app.cochat.ai/papers/10.1016/s0140-6736(03)13582-9
The paper
Chauhan, A., Inskip, H. M., Linaker, C. H., Smith, S., Schreiber, J., Johnston, S. L., & Holgate, S. T. (2003). Personal exposure to nitrogen dioxide (NO2) and the severity of virus-induced asthma in children. The Lancet. https://doi.org/10.1016/s0140-6736(03)13582-9

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Contains information from the Semantic Scholar Academic Graph Datasets, made available under the ODC Attribution License (ODC-BY 1.0).

Semantic Scholar’s data is described in: Kinney, R., et al. (2023). The Semantic Scholar Open Data Platform. arXiv:2301.10140.