Figure 3

Intergroup and intragroup β diversity. Mean (± SEM) pairwise Unifrac distances obtained by unweighted (A) or weighted (B) methods are shown. Significance was determined by one-way analysis of variance (ANOVA) with the Tukey honestly significant difference (HSD) method for correction for multiple comparisons. For the 51 triplet sets, all differences in the unweighted Unifrac comparisons were significant (P <0.05), except for the comparisons between control-lesion and within unaffected, and the comparison between unaffected-lesion and within lesion. All differences between the weighted pairwise comparisons were significant (P <0.05) except for the comparisons between control-lesion and unaffected-lesion, and the comparison between unaffected-lesion and within lesion.