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  1. Determinants of asthma in a farming population.

    Article - En anglais

    Objectives This study examined the determinants of asthma in a population of farmers, including as a crude indicator of genetic predisposition history of asthma in next-of-kin' (family history), and exposure factors such as animal production and smoking.

    Methods In a cross-sectional study of 8482 farmers or farmers'spouses in Norway a questionnaire with information on asthma among the subjects and their next-of-kin, production type and farming activities, exposures outside farming, and smoking was applied.

    Spirometry was performed.

    Results The lifetime prevalence of self-reported asthma in the population was 6.3%. Significant risk factors for current asthma were asthma among next-of-kin, asthma as child or adolescent, animal production, and age.

    In a comparison with subjects with no family history of asthma and no animal production the adjusted odds ratio for current asthma in never smokers was 1.9 [95% confidence interval (95% Cl) 0.4-8.9] for subjects with family history only, 2.2 (95% CI 1.1-4.2) for subjects with animal production only, and 6.3 (95% CI 3.1-13.1) for subjects with both factors.

    A combination of animal production, smoking, and a positive family history gave an odds ratio of 8.1 (95% CI 4.0-16.2) for current asthma.

    Conclusions The study can be interpreted as support for the hypothesis of an interaction between genetic factors and exposure factors in the causation of asthma. (...)

    Mots-clés Pascal : Asthme, Agriculture, Exposition professionnelle, Epidémiologie, Médecine travail, Homme, Norvège, Europe, Histoire familiale, Génétique, Facteur risque, Appareil respiratoire pathologie, Bronchopneumopathie obstructive

    Mots-clés Pascal anglais : Asthma, Agriculture, Occupational exposure, Epidemiology, Occupational medicine, Human, Norway, Europe, Family story, Genetics, Risk factor, Respiratory disease, Obstructive pulmonary disease

    Logo du centre Notice produite par :
    Inist-CNRS - Institut de l'Information Scientifique et Technique

    Cote : 98-0429082

    Code Inist : 002B11B. Création : 25/01/1999.