Table 3.

Agreement (sensitivity, specificity) for T/S, 80HG and antioxidant to predict Alzheimer’s patients versus age-matched controls

	AUC	P	95% CI	Cut off	Sensitivity	Specificity	PPV	NPV
T/S	0.963	<0.001*	0.921-1.006	≤4.41	86.67	96.67	96.3	87.9
80HG	0.971	<0.001*	0.936-1.006	>174	96.67	86.67	87.9	96.3
Antioxidant	0.862	<0.001*	0.762-0.961	≤1.16	73.33	83.33	81.5	75.8

^*Highly significant. AUC – Area under a curve; CI – Confidence intervals; PPV – Positive predictive value; NPV – Negative predictive value