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Table of Contents
Vol. 144, No. 4, 2007
Issue release date: November 2007
Section title: Original Paper
Int Arch Allergy Immunol 2007;144:338–342
(DOI:10.1159/000106460)

Reduced Risk of Atopic Sensitization among Farmers: The Humboldt Study

Chen Y.a · Rennie D.b, c · Cormier Y.d · McDuffie H.b · Pahwa P.b · Dosman J.b
aDepartment of Epidemiology and Community Medicine, Faculty of Medicine, University of Ottawa, Ottawa, Ont., bInstitute of Agricultural Rural and Environmental Health and cCollege of Nursing, University of Saskatchewan, Saskatoon, Sask., and dCentre de Pneumologie, Hôpital and Université Laval, Sainte-Foy, Que., Canada

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Article / Publication Details

First-Page Preview
Abstract of Original Paper

Received: December 04, 2006
Accepted: April 11, 2007
Published online: July 31, 2007
Issue release date: November 2007

Number of Print Pages: 5
Number of Figures: 0
Number of Tables: 2

ISSN: 1018-2438 (Print)
eISSN: 1423-0097 (Online)

For additional information: http://www.karger.com/IAA

Abstract

Background: It needs to be clarified whether farming is associated with a reduced risk of atopy or allergic condition. There is a lack of consistent evidence for prevalences of atopy, respiratory allergy and asthma in adult farmers. Methods: A cross-sectional study of adults (n = 2,081) was conducted in the town of Humboldt, Sask. Allergy skin prick tests were conducted to determine atopic sensitization. Respiratory allergy and physician-diagnosed asthma were based on self-reporting. Logistic regression was used to assess the associations of atopy, respiratory allergy and asthma with farming practices, adjusting for other important variables. Results: Of 2,081 participants, 27.8% were farmers. Reduced risks of atopic sensitization, respiratory allergy and asthma were observed among farmers compared to non-farmers. After adjustment for sex and age, which are major confounders, the odds ratio for atopic sensitization was 0.79 (95% confidence interval: 0.65, 0.97) for farmers versus non-farmers. Asthma showed a similar trend; however, there was no statistically significant difference in either respiratory allergy or asthma rates observed between farmers and non-farmers. Conclusions: The prevalence of atopy was lower in adult farmers than in non-farmers.

© 2007 S. Karger AG, Basel


Article / Publication Details

First-Page Preview
Abstract of Original Paper

Received: December 04, 2006
Accepted: April 11, 2007
Published online: July 31, 2007
Issue release date: November 2007

Number of Print Pages: 5
Number of Figures: 0
Number of Tables: 2

ISSN: 1018-2438 (Print)
eISSN: 1423-0097 (Online)

For additional information: http://www.karger.com/IAA


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