Table 3.

Discrimination of predictive model for risk of T2DM using C-statistics, NRI, and IDI.

	C-statistic	P value	NRI (95% CI)	P value	IDI (95% CI)	P value
Established risk factors	0.791 (0.769-0.812)	Ref.		Ref.		Ref.
Established risk factors+HSI	0.846 (0.829-0.863)	<0.001	0.348 (0.284-0.410)	<0.001	0.027 (0.018-0.038)	<0.001

Established risk factors included age, gender, family history of diabetes, smoking status, and drinking status. Abbreviations: Ref: reference; IDI: integrated discrimination improvement; NRI: net reclassification improvement.