Table 4. The Detailed Parameters of the Risk Model Evaluation that Dietary Predictors Improved in the Validation Data.

	Classic noninvasive risk model	Diet-containing noninvasive risk model
AIC	2116.6	1934.5
AUC (95% CI)	0.76 (0.73–0.78)**	0.79 (0.77–0.81)**
P-value for difference in C-statistics	Reference	<0.001
IDI (95% CI)	Reference	0.026 (0.018–0.033)**
Relative IDI	Reference	22.5%
NRI (95% CI)	Reference	0.219 (0.158–0.281)**
HL χ2 (P-value)	17.57 (0.03)	13.20 (0.11)

AIC, Akaike’s information criterion; AUC, area under curve; HL, Hosmer-Lemeshow goodness-of-fit; IDI, integrated discrimination improvement, NRI, net classification improvement

** P<0.001.