Fig. 3From: The mediating roles of the oral microbiome in saliva and subgingival sites between e-cigarette smoking and gingival inflammationThe results from α-diversity analysis. The fitted random effects model to assess the disparity in each α-diversity index between EC users and non-users while adjusting for age, gender and the frequency of brushing teeth in the saliva (A) and subgingival (B) sites, respectively. *Est. represents the estimated coefficient on the effect of each α-diversity index in the fitted random effects modelBack to article page