Fig. 1From: A new screening method for periodontitis: an alternative to the community periodontal indexReceiver operator characteristics (ROC) curves for periodontitis based on the Community Periodontal Index (CPI) and salivary hemoglobin (Hb), and lactate dehydrogenase (LD) levels. The area under the ROC curve (AUC) was higher for the CPI than for the saliva tests (CPI, 0.954; Hb, 0.846; LD, 0.737)Back to article page