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Distribution of patients on bronchodilator alone, treatment containing ICS, and no maintenance drug by COPD stage
| No maintenance drugs, n (%) | Bronchodilator alone (no ICS), n (%) | Treatment containing ICS, n (%) | |
|---|---|---|---|
| Stage I | 1 (4) | 8 (10) | 7 (1.1) |
| Stage II | 9 (36) | 35 (43.8) | 194 (31.6) |
| Stage III | 8 (32) | 29 (36.3) | 309 (50.3) |
| Stage IV | 7 (28) | 8 (10) | 104 (16.9) |
| Total | 25 (100) | 80 (100) | 614 (100) |
Abbreviation: ICS, inhaled corticosteroid.
