Table 1 Clinical characteristics of ccRCC patients in the training and testing sets

Survival time (day)

1341.63 ± 976.66

1344.10 ± 983.03

1342.56 ± 978.13

Status

live

223

132

355

Dead

107

66

173

Gender

Female

118

67

185

Male

212

131

343

Age (year)

< 60

149

96

245

≥ 60

181

102

283

Tumor grade

1

6

7

13

2

140

176

228

3

128

76

204

4

51

24

75

Unknown

5

3

8

T Stage

T1

159

109

268

T2

46

23

69

T3

116

64

180

T4

9

2

11

Unknown

0

0

N Stage

N0

143

96

239

N1

10

6

16

Unknown

177

96

273

M Stage

M0

264

155

419

M1

47

32

79

Unknown

19

11

30

Tumor Stage

I

155

107

262

II

40

17

57

III

84

39

123

IV

49

34

83

Unknown

2

1

3