Fig. 3From: Derivation and validation of a nomogram for predicting nonventilator hospital-acquired pneumonia among older hospitalized patientsROC curves of the nomogram. a The training cohort. b Validation Cohort. Note the x-axis represents the false-positive rate of the risk prediction. The y-axis indicates the true-positive rate of the risk prediction. ROC receiver operating characteristic; AUC area under the curveBack to article page