Table 1 Correlation of CD133 and KAI1/CD82 expression to clinicopathogical characteristics in laryngeal squamous cell carcinoma (LSCC)

Gender

> 0.05

> 0.05

Male

36

39

46

29

Female

6

2

3

5

Age

> 0.05

> 0.05

< 60

15

12

15

12

≥ 60

27

29

35

22

Location

> 0.05

> 0.05

Supraglottic

26

25

26

25

Glottic

15

14

20

9

Subglottic

1

2

3

0

Diameter of tumor

> 0.05

> 0.05

< 2.0 cm

23

20

22

21

≥ 2.0 cm

19

21

27

13

Smoking

> 0.05

> 0.05

No

18

13

15

16

Yes

24

28

34

18

Alcohol

> 0.05

< 0.05

No

20

13

14

19

Yes

22

28

35

15

Grade of tumor

< 0.01

< 0.001

Well-differentiated

23

7

9

21

Moderately-differentiated

18

29

35

12

Poorly-differentiated

1

5

5

1

Lymph node metastasis

< 0.001

< 0.01

No

33

16

23

26

Yes

9

25

26

8

pTNM stage

< 0.05

< 0.05

I and II

33

20

26

27

III and IV

9

21

23

7