Pharmacological treatment in 128 chronic obstructive pulmonary disease patients starting long-term domiciliary oxygen therapy
| Inhaled β2-agonists | 114 (89) |
| Inhaled ipratropium | 103 (80) |
| Inhaled corticosteroids | 103 (80) |
| Diuretics | 59 (46) |
| Xanthines | 58 (45) |
| Oral corticosteroids | 24 (19) |
Data presented as n (%).