Table 3.

Survival analysis of OS and CSS in the training cohort and validation cohort.

Endpoints	Months	n.risk	n.event	Survival	std.err	95% CI
OS of training cohort	12	6619	851	0.888	0.0036	0.881 - 0.895
	36	3375	937	0.735	0.0055	0.725 - 0.746
	60	1453	197	0.677	0.0065	0.665 - 0.690
OS of validation cohort	12	2819	384	0.881	0.0057	0.870 - 0.893
	36	1445	375	0.739	0.0084	0.722 - 0.755
	60	629	89	0.677	0.0100	0.657 - 0.696
CSS of training cohort	12	6619	724	0.904	0.0034	0.897 - 0.910
	36	3375	735	0.780	0.0052	0.770 - 0.791
	60	1453	142	0.736	0.0062	0.724 - 0.748
CSS of validation cohort	12	2819	317	0.901	0.0053	0.891 - 0.911
	36	1445	314	0.777	0.0080	0.761 - 0.793
	60	629	72	0.724	0.0097	0.705 - 0.743