{"status":"ok","message-type":"work","message-version":"1.0.0","message":{"indexed":{"date-parts":[[2026,9,20]],"date-time":"2026-09-20T04:43:27Z","timestamp":1789879407852,"version":"4.0.1"},"reference-count":34,"publisher":"European Respiratory Society (ERS)","issue":"4","content-domain":{"domain":[],"crossmark-restriction":false},"short-container-title":["Eur Respir J"],"accepted":{"date-parts":[[2010,8,8]]},"published-print":{"date-parts":[[2011,4]]},"abstract":"<jats:p>Our aim was to study respiratory symptoms and lung function decline in farmers, with particular attention to the influence of handling hay, straw and animal feed.<\/jats:p><jats:p>From a cohort recruited in 1993\u20131994, 219 (82.6%) dairy farmers, 130 (62.5%) nondairy agricultural workers and 99 (66.4%) controls were re-evaluated in 2006. They answered medical and occupational questionnaires, underwent spirometric tests at both evaluations and pulse oximetry in 2006.<\/jats:p><jats:p>Dairy and nondairy agricultural workers showed an increased risk for usual morning phlegm (adjusted OR 4.27 (95% CI 1.41\u201312.95) and 3.59 (95% CI 1.16\u201311.10), respectively). Animal feed handling was associated with increased risks of wheezing (p = 0.01) and usual morning phlegm (p = 0.04); hay or straw handling was associated with increased risk of wheezing (p = 0.008). Adjusting for smoking, age, height, sex and altitude, dairy farmers had greater declines in forced expiratory volume in 1 s (FEV<jats:sub>1<\/jats:sub>)\/forced vital capacity ratio (p = 0.01) than controls. An increased decline in FEV<jats:sub>1<\/jats:sub>for all agricultural workers was associated with animal feed handling, both measured as a categorical (currently<jats:italic>versus<\/jats:italic>never handling; p = 0.05) or quantitative value (years of exposure during the survey period; p = 0.03).<\/jats:p><jats:p>Hay, straw or animal feed handling represents a risk factor of bronchial symptoms and, for animal feed only, of accelerated decline in expiratory flows.<\/jats:p>","DOI":"10.1183\/09031936.00122209","type":"journal-article","created":{"date-parts":[[2010,10,29]],"date-time":"2010-10-29T01:57:39Z","timestamp":1288317459000},"page":"767-774","source":"Crossref","is-referenced-by-count":29,"title":["Influence of hay and animal feed exposure on respiratory status: a longitudinal 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