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Fig. 3 | Respiratory Research

Fig. 3

From: Bacteria and sputum inflammatory cell counts; a COPD cohort analysis

Fig. 3

The comparison of sputum and blood eosinophil and neutrophil counts between patients colonised with different PPMs at 6 months post-baseline. Patients were categorised into four groups based on bacterial load defined by genome copies/ml of ≥ 1 × 104; no colonisation (NC), colonised with Haemophilus influenzae (HI), Streptococcus pneumoniae (SP) or > 1 potentially pathogenic microorganism (PPM). Sputum neutrophil % (n = 66) (a), Sputum eosinophil % (n = 66) (b). Three patients were excluded due to colonisation with Moraxella catarrhalis at 6 months. Blood neutrophil count (n = 100) (c), Blood eosinophil count (n = 100) (d) Blood neutrophil % (n = 100) (e) and Blood neutrophil–lymphocyte ratio (n = 100) (f). Statistical analysis was performed using Kruskal–Wallis and Mann–Whitney U adjusted for multiple comparisons. Data represent individual patients with median. *Significant difference to no colonisation group (p < 0.05 respectively)

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