Table 1 Distribution of variables according to the source and time of data collection.
Variables source | Time of data collection | |||
|---|---|---|---|---|
Clinical history | Interview | Pre-intervention | Post-intervention | |
Principal variables | ||||
Quality of life; SGRQ | x | x | x | |
Evaluation of dyspnoea; MRC | x | x | x | |
Number of exacerbations | x | x | x | x |
Number of hospital stays | x | x | x | x |
Correct inhalation technique | x | x | x | |
Spirometry staging | x | x | x | |
Tobacco consumption | x | x | x | x |
Other variables | ||||
Date of birth | x | x | ||
Gender | x | x | ||
Education level | x | x | ||
Country of birth | x | x | ||
Occupation during the previous 10 years | x | x | x | |
Nicotine dependence | x | x | x | |
Work-place exposure | x | x | x | |
Environmental exposure | x | x | x | |
Disease related to COPD | x | x | ||
Co-morbidity | x | x | x | |
Life-style | x | x | x | |
Date of COPD diagnosis | x | x | ||
Chronic bronchitis and emphysema | x | x | ||
Co-morbidity at time of diagnosis | x | x | ||
Chronic symptomatology | x | x | x | |
Cor pulmonale | x | x | x | |
Characteristics of the exacerbations | x | x | x | x |
Health-care resources used | x | x | x | |
Number of visits to the clinician/nurse/specialist, and reasons | x | x | x | |
Tests solicited over the previous 2 years | x | x | x | |
Preventative activities in the previous year | x | x | x | |
Drug treatment | x | x | x | |
Compliance with treatment (difficulties and causes) | x | x | x | x |
Inhalers | x | x | x | |