GOLD stage | n | FEV1%predicted at baseline | % on inhaled medication | % with exacerbation | % hospitalized due to COPD | % dead |
GOLD 1 | 3306 | 95 | 5.5 | 2.6 | 0.2 | 0.7 |
GOLD 2 | 2851 | 68 | 18.4 | 4.2 | 1.3 | 1.0 |
GOLD 3 | 426 | 43 | 50.2 | 10.8 | 7.7 | 2.3 |
GOLD 4 | 45 | 25 | 73.3 | 22.2 | 24.4 | 2.2 |
| | | | | | |
GOLD A | 5126 | 84 | 8.5 | 2.0 | 0.3 | 0.6 |
GOLD B | 936 | 74 | 26.6 | 3.7 | 3.0 | 2.0 |
GOLD C | 271 | 52 | 32.1 | 23.2 | 2.6 | 0.7 |
GOLD D | 295 | 43 | 62.0 | 20.3 | 13.6 | 3.4 |