Respiratory status in dairy farmers in France; cross sectional and longitudinal analyses
Respiratory status in dairy farmers in France; cross sectional and longitudinal analyses
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DOI:
10.1136/oem.60.11.858
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发表时间:
2003-11-01
影响因子:
4.9
通讯作者:
Dalphin, JC
中科院分区:
文献类型:
--
作者:
Chaudemanche, H;Monnet, E;Dalphin, JC
Aims: To compare respiratory status in dairy farmers with that of non-farming controls.Methods: Longitudinal study in the Doubs ( France). From a cohort constituted in 1994 (T1), 215 (81.1%) dairy farmers and 110 (73.8%) controls were reevaluated in 1999 (T2). The protocol comprised a medical and occupational questionnaire, spirometric tests at both evaluations, allergological tests at T1, and a noninvasive measure of blood oxygen saturation (Spo(2)) at T2.Results: In 1999 analyses, the prevalence of chronic bronchitis was higher ( p = 0.013), and FEV1/VC (p< 0.025) and Spo(2) (20.7%, p< 0.01) lower in dairy farmers than in controls. In a multiple linear regression model, farming, age, and smoking were significantly and inversely correlated with Spo2. In the whole population, the mean annual decline in FEV1 and FEV1/ VC was -13.4 ml and -0.30%, respectively. Farming was associated with an accelerated decline in FEV1/ VC ( p< 0.025) after adjustment for covariates. No relation between allergy and respiratory function changes was observed, except for FEF25-75.Conclusions: This prospective study shows that dairy farming is associated with an excess of chronic bronchitis, with a moderate degree of bronchial obstruction and a mild decrease in Spo2.