title: [Occupational chronic obstructive pulmonary disease: a poorly understood disease].
abstract: BACKGROUND
  According to several recent population-based studies 15-20% of chronic obstructive pulmonary disease (COPD) is work related.
  
  
  BACKGROUND
  The occupational fields in which a causal relationship is established are the mining industry, construction and public works, iron and steel, textiles, grain (silo workers), dairy and pig farming. The main causative substances are silica, coal dust, cotton dust, grain dust and endotoxins.
  
  
  CONCLUSIONS
  Knowledge of the occupational causes of COPD is important for both prevention and compensation.
  
  
  CONCLUSIONS
  The undertaking of a complete and rigorous occupational questionnaire is essential for all patients with COPD.
authors.affiliation: Unité de pathologie professionnelle, de santé au travail et d'insertion, Hôpital Raymond Poincaré, AP-HP Garches, France. jacques.ameille@rpc.aphp.fr
authors.forename: J
authors.initials: J
authors.lastname: Ameille
authors.forename: J C
authors.initials: JC
authors.lastname: Dalphin
authors.forename: A
authors.initials: A
authors.lastname: Descatha
authors.forename: J C
authors.initials: JC
authors.lastname: Pairon
mesh_terms: D000383:Agriculture; D005602:France / Q000453:epidemiology; D006801:Humans; D008669:Metallurgy; D008906:Mining; D009784:Occupational Diseases / Q000453:epidemiology*; D011009:Pneumoconiosis / Q000453:epidemiology; D029424:Pulmonary Disease, Chronic Obstructive / Q000453:epidemiology*; D012307:Risk Factors; D013783:Textile Industry