Selenoprotein-p and insulin resistance in children and adolescents with obesity

Table 4 Predictive/diagnostic performance of selenoprotien P1 from receiver operating characteristic curve analysis

	Obesity children
AUC	0.828
SE	0.053
95%CI	0.724-0.931
P value	< 0.0001a
Cut-off value	≤ 7.5
Sensitivity (%)	92.31
Specificity (%)	86.96
PPV (%)	85.7
NPV (%)	93.0

^aP < 0.05 (testing the null hypothesis AUC = 0.5 against observed AUC).

AUC: Area under the receiver operating characteristics curve; CI: Confidence interval of AUC; NPV: Negative predictive value; PPV: Positive predictive value; SE: Standard error of AUC.