Table 2. Different cut-off points for the ADA diabetes risk test when applied in the CRISPS population (n = 1415).

AUROC (95% CI)	Risk score Cut-off	Sensitivity, %	Specificity, %	PPV, %	NPV, %
0.725 (0.673–0.776)	1	100.00	0.00	6.7	0.0
	2	100.00	2.0	6.8	100.0
	3	98.9	9.9	7.3	99.2
	4	90.5	28.2	8.3	97.6
	5*	80.0	56.7	11.7	97.5
	6	53.7	78.6	15.3	95.9
	7	20.0	94.2	19.8	94.2
	8	3.2	99.2	21.4	93.4
	9+	0.00	100.00	0.0	93.3

*Optimal cut-off for DM by Youden j index. PPV, Positive Predictive Value; NPV, Negative Predictive Value