Occupational chronic obstructive pulmonary disease : a poorly understood disease

Introduction 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. Viewpoint 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.