Table 2.

Efficacy analysis (intension-to-treat population)

Endpoints	Group	No.of patients	No. of patients with events	Stratified Hazard ratio	Cox regression	Stratified
					90%CI	log-rank test
DFS						p = 0.0549
	6M group	654	226	–	–
	12M group	650	208	0.858	0.732–1.004
RFS						p = 0.0143
	6M group	654	199	–	–
	12M group	650	169	0.796	0.670–0.945
OS						p = 0.0124
	6M group	654	113	–	–
	12M group	650	87	0.727	0.575–0.919

DFS disease-free survival, RFS relapse-free survival, OS overall survival