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Cited by 469

The DOI matches its Crossref record; 31 of the 31 references it cites were found in a registry or an index.

Diagnosing Asthma: Comparisons between Exhaled Nitric Oxide Measurements and Conventional Tests

Smith, Andrew D., Cowan, Jan O., Filsell, Sue, McLachlan, Chris, Monti-Sheehan, Gabrielle, Jackson, Pamela, Taylor, D. Robin·2004·American Journal of Respiratory and Critical Care Medicine

Abstract

International guidelines recommend a range of clinical tests to confirm the diagnosis of asthma. These focus largely on identifying variable airflow obstruction and responses to bronchodilator or corticosteroid. More recently, exhaled nitric oxide (FE(NO)) measurements and induced sputum analysis to assess airway inflammation have been highlighted. However, to date, no systematic comparisons to confirm the diagnostic utility of each of these methods have been performed. To do so, we investigated 47 consecutive patients with symptoms suggestive of asthma, using a comprehensive fixed-sequence series of diagnostic tests. Sensitivities and specificities were obtained for peak flow measurements, spirometry, and changes in these parameters after a trial of steroid. Comparisons were made against FE(NO) and sputum cell counts. Sensitivities for each of the conventional tests (0-47%) were lower than for FE(NO) (88%) and sputum eosinophils (86%). Overall, the diagnostic accuracy when using FE(NO) and sputum eosinophils was significantly greater. Results for conventional tests were not improved, using a trial of steroid. We conclude that FE(NO) measurements and induced sputum analysis are superior to conventional approaches, with exhaled nitric oxide being most advantageous because the test is quick and easy to perform.

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Metadata

Authors
Smith, A. D., Cowan, J. O., Filsell, S., McLachlan, C., Monti-Sheehan, G., Jackson, P., & Taylor, D. R.
Venue
American Journal of Respiratory and Critical Care Medicine
Published
2004-02-15
Volume
169
Issue
4
Pages
473-478
ISSN
  • 1073-449X (ISSN-L)
  • 1535-4970
OpenAlex
W2038777547
Cited by
469
References
31
FWCI
11.40
Type
journal article
Language
en
Open access
closed

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CoChat. (2026). Citation check: Diagnosing Asthma: Comparisons between Exhaled Nitric Oxide Measurements and Conventional Tests. https://app.cochat.ai/papers/10.1164/rccm.200310-1376oc
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Smith, A. D., Cowan, J. O., Filsell, S., McLachlan, C., Monti-Sheehan, G., Jackson, P., & Taylor, D. R. (2004). Diagnosing Asthma: Comparisons between Exhaled Nitric Oxide Measurements and Conventional Tests. American Journal of Respiratory and Critical Care Medicine. https://doi.org/10.1164/rccm.200310-1376oc

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