Airflow grades, outcome measures and response to pulmonary rehabilitation in individuals after an exacerbation of severe chronic obstructive pulmonary disease

Individuals with Chronic obstructive pulmonary disease (COPD) are staged according to symptoms and exacerbation (ECOPD) history, (Global Initiative for Chronic Obstructive Lung Disease (GOLD) groups A-D) and on airflow obstruction (GOLD airflow severity grades 1–4). [1]