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Patterns of sensitization to furry animal allergen components in adult asthma and indicators of severity
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2018 (English)In: European Respiratory Journal, ISSN 0903-1936, E-ISSN 1399-3003, Vol. 52Article in journal, Meeting abstract (Other academic) Published
Abstract [en]

Background: Whilst the role of allergen component sensitization in asthma has been investigated in children, studies in adults are lacking.

Aim: To study the relationship between patterns of sensitization to furry animal allergen components and asthma, concomitant asthma/allergic rhinitis, and indicators of asthma severity in a population-representative adult sample.

Methods: From the West Sweden Asthma Study, 2006 were clinically phenotyped, of which 1872 had Phadiatop analyzed. Those with IgE>0.35 kUA/L were then analyzed for specific cat (Fel d 1, 2, & 4), dog (Can f 1, 2, 3, & 5), and horse (Equ c 1) allergen components. Sensitization patterns were defined as mono-, double-, and poly-sensitization (i.e. >2 components). Outcomes were current asthma, current allergic rhinitis, concomitant asthma/rhinitis, and indicators of asthma severity.

Results: Mono-, double-, and poly-sensitization to furry animal components were each associated with a substantial increased risk of asthma, allergic rhinitis, concomitant asthma/rhinitis, and ACT well-controlled asthma. Poly-sensitization was further associated with increased FeNo (β 0.43, 95%CI 0.18 to 0.68) and eosinophil (β 0.26, 95%CI 0.02 to 0.50) levels, and lower PD20 methacoline values (β -0.57, 95%CI -0.99 to -0.15). Sensitization patterns were not associated with asthma exacerbations, FEV1 values, emergency visits or oral steroid use, and neutrophil levels.

Conclusion: Patterns of sensitization to furry animal allergen components are a good predictor of clinical outcomes and indicators of asthma severity in adults, but only poly-sensitization had impact on eosinophilic inflammatory markers of severity.

Place, publisher, year, edition, pages
European Respiratory Society , 2018. Vol. 52
National Category
Respiratory Medicine and Allergy
Identifiers
URN: urn:nbn:se:umu:diva-156012DOI: 10.1183/13993003.congress-2018.PA3999ISI: 000455567105132OAI: oai:DiVA.org:umu-156012DiVA, id: diva2:1284674
Conference
28th International Congress of the European-Respiratory-Society (ERS), SEP 15-19, 2018, Paris, FRANCE
Note

Supplement: 62

Meeting Abstract: PA3999

Available from: 2019-02-01 Created: 2019-02-01 Last updated: 2019-02-01Bibliographically approved

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Rönmark, Eva

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