Fig. 7

Correlations among bacteria species in control (a) and SLE subjects (b) with chronic periodontitis (CP) (green) and Non-CP (NCP) (yellow). In white area are the bacteria that are common to subjects with CP and NCP. Spearman Rank test with a cutoff rho value of 0.4 and p < 0.05. Blue lines indicate positive correlations and red lines negative correlations