Prevalence of Chronic Obstructive Pulmonary Disease (COPD) and Eosinophilia Among Primary Care Patients

The minimal questionnaire is a reduced version of the medical interview and it will include questions about sociodemographic information, previous diagnosis of COPD, co-morbidities and smoking habits.

Medical interview includes medical history, sociodemographic and clinical information, including disease history, treatment history, smoking habits and use of biomass.

The CAT is a questionnaire for COPD patients and is designed to measure the impact of COPD on a person's life over time.

Blood samples will be collected at indicated time points

Anthropologic measures will be performed.

Digital pulse oximeter on the index finger after five minutes rest and before receiving bronchodilator for spirometry will be used to measure the pulse arterial oximetry. The average of three measurements at 10 second intervals will be recorded. The heart rate will be provided by the pulse oximeter.