Table 5. Summary of ROC Analysis Predicting Smartphone Addiction.

	AUC	95% CI	Cut-off	Sensitivity	Specificity	PPV	NPV
SAS-SV(Boy)	0.963	0.888–1.000	31	0.867	0.893	0.619	0.971
SAS-SV(Girl)	0.947	0.887–1.000	33	0.875	0.886	0.737	0.951

AUC, area under the curve; CI, confidence interval; PPV, positive predictive value; NPV, negative predictive value.