Prevalence of Chronic Obstructive Pulmonary Disease in the Portuguese Population

Prevalence of Chronic Obstructive Pulmonary Disease in the Portuguese Population- EpiCOPDpt Study

The EpiCOPDpt Study (Prevalence of Chronic Obstructive Pulmonary Disease in the Portuguese Population) primary objective is to estimate the prevalence of Chronic Obstructive Pulmonary Disease (COPD) in the Portuguese population aged 20 and over. It is a cross-sectional study of a representative sample of the Portuguese population aged 20 and over, using standardised post-bronchodilator spirometry. Questionnaires will be applied to collect sociodemographic, economic, clinical, and therapeutic data.

Inclusion Criteria:

• Male and female subjects aged 20 years and over, with permanent or temporary residence for at least one year in the national territory;
• Written informed consent for study participation.

Exclusion Criteria:

• Any condition that makes it impossible to perform spirometry, in accordance with standards of the joint American Thoracic Society/European Respiratory Society, and as described in the "Contraindications for spirometry testing" section of the Study Procedures Manual;
• Any condition that makes it impossible to perform the bronchodilation, as described in the "Contraindications for bronchodilation" section of the Study Procedures Manual;
• Severe cognitive disability that may interfere with the person's capability to participate in the study.