Chronic Obstructive Pulmonary Disease and Occupational Exposures: Epidemiological Evidence from R. Macedonia

Methods: Prevalence and characteristics of COPD were assessed in the groups of bricklayers, cotton workers, grain workers, diary farmers, and welders. In addition, an equal group of administrative workers matched to dusty occupation workers by age and smoking status were studied as a control. Each study was performed by the same study protocol including questionnaire for respiratory symptoms in the last 12 months, baseline and post-bronchodilator spirometry and COPD diagnosis.