Fig. 2From: A predictive nomogram: a cross-sectional study on a simple-to-use model for screening 12-year-old children for severe caries in middle schoolsNomogram ROC curves with fivefold CV and leave-one-out CV. Five ROC curves (a–e) with validation data (red solid line) and training data (blue dashed line) and one ROC curve (f) with leave-one-out CV (red solid line) and all data (blue dashed line)Back to article page