Nationwide study of blood eosinophils in COPD: impact of exacerbations and corticosteroids
Abstract Introduction Blood eosinophils are increasingly used as biomarkers to guide inhaled corticosteroid (ICS) and biologic therapy in chronic obstructive pulmonary disease (COPD). However, the long-term stability of eosinophil count and the impact of proximate clinical events remain uncertain. This study examines t...