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Fig. 2 | Respiratory Research

Fig. 2

From: Endotracheal tube microbiome in hospitalized patients defined largely by hospital environment

Fig. 2

Alpha diversity comparisons. Violin plots showing community alpha diversity according to hospital (a) and extubation reason (b). Statistical differences based on ICU were assessed with Welch t-test (Shannon: p =  < 0.001, Chao1: p = 0.0056, Simpson p = 0.001, OTUs observed: p = 0.0010), and with One-way ANOVA for extubation reason (Shannon: p =  < 0.0305, Chao1: p = 0.0343, Simpson p = 0.0278, OTU number: p = 0.0215. c Intubation (top) and patient age (bottom) were tested for correlation using Spearman’s rank correlation coefficient (rho). Statistical differences were observed only for intubation days (Shannon: p =  < 0.001, Chao1: p = 0.0001, Simpson p = 0.0009, OTUs observed: p = 1.391e−05)

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