Perception of symptom variability in COPD

Exclusion Criteria

• - Participation in any interventional study involving investigational drugs; Patient inability to understand the study procedures or inability/reluctance to answer questionnaire
• - Ongoing exacerbation of COPD or exacerbation within the previous 3 months. An exacerbation is defined as a worsening of COPD symptoms leading to a treatment with antibiotics and/or a short course of system steroids and/or hospitalisation or emergency
• - History of asthma and/or allergic rhinitis, Lung cancer or any other significant respiratory disease such as bronchiectasis, lung fibrosis, interstitial lung disease, tuberculosis, sarcoidosis