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Prevalence and risk factors for COPD in farmers: a cross-sectional controlled study
Alicia Guillien1, Marc Puyraveau2, Thibaud Soumagne3
1Service d'Explorations Fonctionnelles Respiratoires, Centre Hospitalier Régional Universitaire (CHRU), Besançon, France.
Abstract:
There are conflicting data regarding the magnitude and determinants of chronic obstructive pulmonary disease (COPD) risk in farmers.In a cross-sectional study of 917 nonfarming working controls and 3787 farmers aged 40-75 years, we assessed respiratory symptoms, tobacco exposure, job history (without direct exposure measurement) and lung function. COPD was defined by the Global Initiative for Chronic Obstructive Lung Disease (GOLD) criterion (post-bronchodilator forced expiratory volume in 1 s (FEV1)/forced vital capacity (FVC) <0.70) and by the Quanjer reference equation (post-bronchodilator FEV1/FVC
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