Table 3.

The medium survival time (months) of different risk stratifications in the training set.

RSF Risk Stratification	Number	Events	Median	0.95 LCL	0.95 UCL
Low-risk	1332	644	73	63	85
Medium-risk	766	719	19	18	20
High-risk	706	686	10	9	11

Note: LCL: Low confidence interval, UCL: Up confidence interval.