Figure 3
Diagnostic sensitivity and specificity of 3 bacterial species in the matched populations. a. Diagnostic sensitivity and specificity when C. gingivalis is at different salivary counts × 105/ml and both P. melaninogenica and S. mitis = 0 b. Diagnostic sensitivity and specificity when P. melaninogenica is at different salivary counts × 105/ml, C. gingivalis ≥0.4 × 105/ml and S. mitis = 0 c. Diagnostic sensitivity and specificity when S. mitis is at different salivary counts × 105/ml and both C. gingivalis and P. melaninogenica ≥0.4 × 105/ml