Influence of occupational factors on lung function in French dairy farmers. A 5-year longitudinal study.

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Venier, A. G. | Chaudemanche, H. | Monnet, E. | Thaon, I. | Fury, R. | Laplante, J. J. | Dalphin, J. C.

Edité par CCSD ; Wiley -

International audience. BACKGROUND: Dairy farming is associated with a high prevalence of respiratory disorders but the respective influence of occupational exposures, environmental, and individual factors on lung function remain unclear. METHODS: In 1994 and 1999, dairy farmers were examined in the Doubs province, France. Spirometric measures and allergological tests were performed. Medical and professional data were obtained by questionnaires. A multiple linear regression analysis was performed. RESULTS: An accelerated decline in lung function parameters was associated with age, male sex, traditional farm (as opposed to modern farms), and a high rate of total IgE (P < 10(-2)). Blood oxygen saturation (SpO2) was significantly positively linked with the modernization of the farm and negatively with age, smoking status, and log IgE (P < 10(-2)). Geographical factors (altitude and climatic conditions) had no significant effect. CONCLUSIONS: The modernization of the farm has an important and beneficial impact on lung functiony.

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