Figure 5.

Sputum mast cell gene expression in eosinophil^low and eosinophil^high COPD patients. RNA‐sequencing was used to examine the expression of (a) MC_bb signature and correlations between the MC_bb signature and (b) COPD T2 signature, (c) blood eosinophils and (d) sputum eosinophils in n = 11 eosinophil^low and n = 15 eosinophil^high COPD patients. Data are presented as individual values where the black horizontal line represents the median (a). Data are analysed by Spearman's correlation (b–d).