Farmers exposed to cattle and pigs have an increased prevalence of COPD compared with crop farmers and matched controls |
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Farmers working with pigs and cattle have more COPD than crop farmers or non-farming controls. This is the opposite effect for asthma for which exposure to cattle in the first year of life is protective, although the respiratory problems in indoor pig rearing have less similarities with asthma than the effects of cattle exposure, which was a significant cause of occupational asthma in Nordic countries.
References
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Guillien A, Puyraveau M, Soumagne T, Guillot S, Rannou F, Marquette D, Berger P, Jouneau S, Monnet E, Mauny F, Laplante J-J, Dalphin J-C, Degano B,
Prevalence and risk factors for COPD in farmers: a cross-sectional controlled study,
Eur Respir J,
2016;47:95-103,10.1183/13993003.00153-2015
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