Table 2 The expression relationship between ABCG2 and V-ATPase in esophageal squamous cell carcinoma and in the pathological grading and TNM staging of esophageal squamous cell carcinoma

-

21

1

0

22

${\bar{\chi }}^2=102.96$

+

0

30

0

30

P = 0.000

++

0

4

10

14

rs = 0.94

Total

21

35

10

66

I

-

11

2

0

13

${\bar{\chi }}^2=15.0$

+

0

0

0

0

P = 0.001

++

0

0

2

2

rs = 0.76

Total

11

2

2

15

α

-

6

0

0

6

${\bar{\chi }}^2=48.0$

+

0

17

0

17

P = 0.000

++

0

0

1

1

rs = 1.00

Total

6

17

1

24

β

-

3

0

0

3

${\bar{\chi }}^2=32.1$

+

1

12

0

13

P = 0.000

++

0

4

7

11

rs = 0.80

Total

4

16

7

27

αa

-

17

1

0

18

${\bar{\chi }}^2=20.5$

+

0

9

0

9

P = 0.000

++

0

0

0

0

rs = 0.856

Total

17

10

0

27

αb

-

2

0

0

2

${\bar{\chi }}^2=34.8$

+

0

14

0

14

P = 0.000

++

0

2

4

6

rs = 0.851

Total

2

16

4

22

β

-

2

0

0

2

${\bar{\chi }}^2=26.92$

+

0

7

0

7

P = 0.000

++

0

2

6

8

rs = 0.854

Total

2

9

6

17