TABLE 3.

ROC Curve Analysis for Identifying the Nonfasted State

	FFA	Glucose	Insulin
AUC, mean ± SE	0.998 ± 0.001	0.850 ± 0.016	0.906 ± 0.011
P value for comparison with FFA AUC	—	<.001	<.001
Maximal Youden cut point	287 mEq/mL	97 mg/dL	47.7 μU/mL
Sensitivity	0.99	0.77	0.71
Specificity	0.98	0.87	0.95
Positive predictive value	0.98	0.82	0.92
Negative predictive value	0.99	0.84	0.82
Positive likelihood ratio	62.36	6.11	14.8
Negative likelihood ratio	0.01	0.26	0.31

—, not applicable.