Fig. 5From: Suppressor of variegation 3–9 homologue 1 impairment and neutrophil-skewed systemic inflammation are associated with comorbidities in COPDCorrelations between the percentage of neutrophils and number of COPD comorbidities or CCI. a The correlation between the peripheral blood neutrophil count and number of COPD comorbidities was analysed by Spearman’s rank correlation analysis. Spearman’s coefficient r = 0.388, p < 0.001. b The association between the peripheral blood neutrophil count and CCI was assessed. Spearman’s r = 0.171, p = 0.013Back to article page