Table 4.

Performance characteristics of the non-invasive risk score for type 2 diabetes in the primary and validation cohorts

Model	AUC	Cut-off	Sensitivity % (95% CI)	Specificity % (95% CI)	PPV	NPV
UAE citizens	0.82 (0.78–0.86)	≥19	75.4 (68.3 to 81.7)	70.0 (65.8 to 73.9)	45.3 (39.4–51.2)	89.6 (86.2–92.4)
Arab non-UAE citizens	0.80 (0.76–0.84)	≥15	74.4 (67.7 to 80.3)	71.5 (67.7 to 75.1)	46.1 (40.6–51.7)	89.5 (86.4–92.1)

AUC, area under the curve; NPV, negative predictive value; PPV, positive predictive value; UAE, United Arab Emirates.