Fig. 3From: Difference in oral microbial composition between chronic periodontitis patients with and without diabetic nephropathyAlpha diversity of the saliva microbiome in patients with periodontitis and diabetes mellitus (DM) and patients with periodontitis and diabetic nephropathy (DN). (a) Ace index (P = 0.430) and (b) Chao index (P = 0.648) were abundance indices; (c) Shannon index (P = 0.468) and (d) Simpson index (P = 0.724) were diversity indices. The dots in Fig. 3C represent extreme valuesBack to article page