Table 2 GOLD severity stage (2014) changes between visits (categories B & C combined)
From: The effect of changes to GOLD severity stage on long term morbidity and mortality in COPD
A → A | BC → A | D → A |
A → BC | BC → BC | D → BC |
A → D | BC → D | D → D |
From: The effect of changes to GOLD severity stage on long term morbidity and mortality in COPD
A → A | BC → A | D → A |
A → BC | BC → BC | D → BC |
A → D | BC → D | D → D |