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Respiratory Function and Bronchial Reactivity in Mill Workers

A. Taytard, J. F. Tessier, J. G. Faugere, J. Vergeret and P. Freour
European Journal of Epidemiology
Vol. 4, No. 3 (Sep., 1988), pp. 326-330
Published by: Springer
Stable URL: http://www.jstor.org/stable/3520926
Page Count: 5
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Respiratory Function and Bronchial Reactivity in Mill Workers
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Abstract

Professional exposure to vegetable dusts affect the respiratory function of the exposed subjects. A previous survey conducted in an industrial flour-mill demonstrated a higher frequency of respiratory symptoms in workers compared to a control group. Ten subjects employed in a work site particularly exposed to dust were studied. Each subject answered a questionnaire and performed on Mondays and Fridays, at the begenning and end of his work shift, a flow volume curve and an isocapnic hyperventilation test. The aerobiology of the professional environment was also measured. We noted: 1) in the flow volume curves: a drop in the FEV1 during the Monday morning shift, a significant difference between the FEV1 (p<0.05) and the MMEFR 25-75 (p<0.05) measured at 6 am on Monday and Friday, and between the MMEFR 25-75 values obtained at 12 noon on Monday and Friday (p<0.05). 2) after isocapnic hyperventilation, a significant drop in the MMEFR 25-75 at 6 am on Monday (p<0.01) and in the FEV1 and MMEFR 25-75 at 12 noon on Mondays (p<0.05), a significant drop in the FEV1 at 1 pm on Monday (p<0.01).

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