Fig. 3From: Reduced airway levels of fatty-acid binding protein 4 in COPD: relationship with airway infection and disease severityRelationship between FEV1 and (A) BALF FABP4 and (B) sputum FABP4. Relationship between CAT score and (C) BALF FABP4 and (D) sputum FABP4. Data was obtained using Spearman correlationBack to article page