Characteristics of the tumor

n = 914

%

Differentiation

Undifferentiated

379

41.5

moderately differentiated

68

7.4

Well differentiated

467

51.1

Infiltration

No

385

42.1

Yes

529

57.9

Stage

stage 1

146

16.0

stage 2

79

8.6

stage 4

99

10.8

stage 5

30

3.3

missing

560

61.3

Presence of metastasis

Absent

814

89.1

Present

100

10.9