Table 1. Clinical characteristics of KIRC patients in the training set and testing set.

Characteristics	Number of patients			P-value
	All patients n=316	Training set n=158	Testing Set n=158
State				1a
Living	212	106	106
Dead	104	52	52
Survival(months)				0.9579b
Mean±SD	44.00±35.12	43.90±34.81	44.11±35.54
Range	1-152	1-136	1-152
Gender				1a
Male	204	102	102
Female	112	56	56
Age				0.9208b
Mean±SD	63.44±11.86	63.37±11.58	63.51±12.16
Range	28-92	39-92	28-90
Stage				1b
I	154	77	77
II	31	15	16
III	72	36	36
IV	59	30	29

^ap-values were determined using Fisher's exact test.

^bp-values were determined using Student's t-test.