Table 3.

Accuracy of the prediction score of the nomogram for estimating the risk of LAT/SEC.

Variable	Nomogram		CHADS2 score		CHA2D2VASc score
	Training cohort	Validation cohort	Training cohort	Validation cohort	Training cohort	Validation cohort
AUC	0.84	0.79	0.61	0.64	0.61	0.64
Cutoff score	97.0	101.5	1.5	1.5	2.5	1.5
Specificity, %	71.9	74.4	64.4	66.0	59.2	34.7
Sensitivity, %	83.8	70.2	52.3	54.0	58.1	87.1
NPV, %	94.4	90.1	83.6	83.9	84.2	90.7
PPV, %	44.2	43.1	28.0	30.5	27.5	26.9

AUC, Area under ROC curve; NPV, Negative predictive value; PPV, Positive predictive value; ROC, receiver operating characteristic.