Predictors of early cessation of dairy farming in the French Doubs province: 12-year follow-up

Authors

  • Ibrahim Njoya Mounchetrou MD,

    1. Service de Maladies Professionnelles, Centre Hospitalier Universitaire de Nancy, Vandoeuvre lès Nancy, France
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  • Elisabeth Monnet MD, PhD,

    1. Service d'Hépatologie et de Soins Intensifs Digestifs, Centre Hospitalier Universitaire de Besançon, Besançon Cedex, France
    2. EA 3186 Agents Pathogènes et Inflammation, Université de Franche Comté, Besançon, France
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  • Jean-Jacques Laplante MD,

    1. Mutualité Sociale Agricole of Besançon, Besançon Cedex, France
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  • Jean-Charles Dalphin MD, PhD,

    1. UMR 6249 CNRS/Université de Franche-Comté, Laboratoire Chrono-environnement, Besançon, France
    2. Service de Pneumologie, Centre Hospitalier Universitaire de Besançon, Besançon, Besançon Cedex, France
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  • Isabelle Thaon MD, PhD

    Corresponding author
    1. Service de Maladies Professionnelles, Centre Hospitalier Universitaire de Nancy, Vandoeuvre lès Nancy, France
    2. UMR 6249 CNRS/Université de Franche-Comté, Laboratoire Chrono-environnement, Besançon, France
    • Centre de Consultations de Pathologies Professionnelles, Batiment Philippe Canton, CHU de Nancy, rue du Morvan 54511 Vandoeuvre les Nancy cedex, France.
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  • Disclosure Statement: The authors have no conflicts of interest to declare.

Abstract

Background

A healthy worker effect due to respiratory disability has been noted in the farming population, but other factors may also interfere. Little has been published about factors influencing the early cessation of work in self-employed dairy farmers.

Methods

Two hundred and nineteen dairy farmers were included from a cohort constituted in eastern France in 1993–1994 with a 12-year follow-up. Spirometric data, personal, and farm characteristics were registered. Cox models with delayed entry in which age was the time-scale were applied to identify the baseline predictive factors of the early cessation of dairy farming.

Results

Working in a modern farm was protective against early cessation of dairy farming (hazard ratio: 0.36 [95% CI: 0.16–0.81]), especially in men. Having asthma was a predictive factor of early cessation, especially in women (hazard ratio: 16.12 [95% CI: 3.28–79.12]).

Conclusions

The most predictive factors of early cessation of dairy farming were health related in women and farm related in men. Am. J. Ind. Med. 55:136–142, 2012. © 2011 Wiley Periodicals, Inc.

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