Fig. 4
From: Repeated bronchoscopy in health and obstructive lung disease: is the airway microbiome stable?
Top panels show mean Bray–Curtis distances between first and second bronchoscopy shown for oral wash (OW) and first fraction of the protected broncho-alveolar lavage samples (PBAL1) samples. The bars show the mean results of 10,000 permutations where random pairs of first and second bronchoscopy are compared. The dotted lines show the actual Bray–Curtis distances within individuals. The bottom panel show the actual distribution of the study data. Results are stratified by disease status: S0—no COPD, S1—COPD, FEV1 > 50%, S2—COPD, FEV1 < 50%