title: [Silicosis, chronic bronchitis and smoking habits].
abstract: In 333 patients suffereing from silicosis the incidence of chronic bronchitis and/or obstruction of the respiratory tract has been correlated with cigarette smoking. The incidence of chronic bronchitis and/or airway obstruction in patients who had acquired either slight or severe silicosis in Switzerland was over 50%. A positive correlation between cigarette smoking and chronic bronchitis and/or airway obstruction could be found only in younger patients with slight silicosis. Chronic bronchitis and/or airway obstruction was not more frequent in foundry-workers suffering from silicosis where they had been exposed to fumes which irritated the respiratory tract. Deformation of the respiratory tract due to silicosis has a greater bearing on the development of chronic bronchitis and airway obstruction than immoderate cigarette smoking.
mesh_terms: D000328:Adult; D000368:Aged; D000402:Airway Obstruction / Q000209:etiology*; D001980:Bronchi / Q000473:pathology; D001991:Bronchitis / Q000209:etiology*; D006801:Humans; D008168:Lung / Q000473:pathology; D008875:Middle Aged; D009784:Occupational Diseases; D012829:Silicosis / Q000150:complications*; D012907:Smoking
vernacular_title: Silikose, chronische Bronchitis und Rauchgewohnheiten