Table 4.

Evaluation of the predictive ability of CSS in the original Kyoto model and the Modified Kyoto model

	Model	C-Statistics (95% CI)	Continuous NRI (95% CI)	p-value	IDI(95% CI)	p-value
1Year Risk	Kyoto model	0.78 (0.67, 0.94)
	Modified Kyoto model	0.85 (0.81, 0.99)	0.53 (0.31, 0.69)	< 0.0001	0.02 (0.00, 0.04)	0.0199
3Year Risk	Kyoto model	0.70 (0.64, 0.75)
	Modified Kyoto model	0.73 (0.66, 0.80)	0.34 (0.22, 0.48)	0.0100	0.05 (0.01, 0.10)	0.0100
5Year Risk	Kyoto model	0.69 (0.65, 0.72)
	Modified Kyoto model	0.73 (0.66, 0.77)	0.37 (0.24, 0.51)	< 0.0001	0.08 (0.03, 0.16)	< 0.0001

NRI Net Reclassification Index, IDI Integrated Discrimination improvement Index