Table 3. Log-rank pair-wise comparison of new risk groups’ association with prostate-cancer-specific mortality in the training set (n = 6,026).

New Risk Group	New Risk Group
	1		2		3		4
	X2	p-Value	X 2	p-Value	X 2	p-Value	X 2	p-Value
1	—	—
2	4.21	0.040	—	—
3	27.25	<0.0001	12.45	<0.0001	—	—
4	66.36	<0.0001	40.83	<0.0001	5.72	0.017	—	—
5	262.47	<0.0001	239.39	<0.0001	127.09	<0.0001	140.08	<0.0001