The clinical data from baseline visits will be collected. This involves data on demography, BMI, comorbidities (exacerbation frequency, cardiovascular disease, depression), exercise capacity (BODE) index and medication use. Furthermore, clinical data will be collected regarding:
- Lifestyle characteristics: physical activity, smoking status, alcohol consumption, working status
- Physical activity limitations that were assessed with the St George’s Respiratory Questionnaire (SGRQ) and EQ-5D
- Exercise capacity parameters: 6minute walking distance and cardiopulmonary exercise testing
- Symptoms: modified Medical Research Council (mMRC), COPD assessment test (CAT) and SGRQ
- Pulmonary function: spirometry, diffusion capacity, bodyplethysmography
- Data from CT scans (emphysema, bronchiectasis).
We will compare patients who meet the criteria for sufficient physical activity according to the American College of Sports Medicine Associations with those who do not meet the criteria.
Associations between physical activity and the other collected characteristics will be examined using regression analysis adjusted for age and sex.