Table 4 Comparison between polyp cases group and controls as regards stain characteristics of blood vessels and overall stain expression

Blood vessel stain distribution

Focal

36

90.0%

26

65.0%

0.007*

HS

Diffuse

4

10.0%

14

35.0%

Blood vessel stain intensity

Faint

12

30.0%

10

25.0%

0.449*

NS

Moderate

24

60.0%

22

55.0%

Strong

4

10.0%

8

20.0%

Combined blood vessel score

1.70

1.40

2.60

2.10

0.09‡

NS

Combined blood vessel score

Negative

12

30.0%

10

25.0%

0.026*

S

Moderate

24

60.0%

16

40.0%

Strong

4

10.0%

14

35.0%

Overall expression score

1.50

1.00

2.80

2.00

0.003‡

HS

Overall expression

Negative

10

25.0%

6

15.0%

0.003*

HS

Mild

14

35.0%

8

20.0%

Moderate

15

37.5%

12

30.0%

Strong

1

2.5%

14

35.0%