Fig. 3From: Clinical utility of blood neutrophil-lymphocyte ratio in Japanese COPD patientsRelationship between NLR and COPD exacerbation. a Comparison of median baseline NLR based on the severity of exacerbation over 3Â years. b ROC curves of median baseline NLR in the predicting moderate or severe exacerbation. Data were compared among three groups using Steel-Dwass test. NLR, Neutrophil-to-Lymphocyte ratioBack to article page