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Table 3 Results of immunohistochemical analysis

From: Bladder perforation during transurethral resection of bladder tumour is not a result of a deficient structure of the bladder wall

 

Group 1 (perforation)

Group 2 (no perforation)

P value (group 1 vs. group 2) *

Type IV collagen

Mean IRS score

3.24

2.20

0.49

Percentage of positive cells

0

0%

1.8%

1

26.9%

54.5%

2

61.6%

38.2%

3

11.5%

5.5%

4

0%

0%

Staining intensity

0

0%

1.8%

1

53.8%

61.8%

2

38.5%

29.1%

3

7.7%

7.3%

Cytokeratin 20

Mean IRS score

8.16

7.18

0.91

Percentage of positive cells

0

0%

10.9%

1

19.2%

20.0%

2

3.8%

5.4%

3

61.6%

27.3%

4

15.4%

36.4%

Staining intensity

0

0%

10.9%

1

15.4%

9.1%

2

7.7%

20.0%

3

76.9%

60.0%

Epithelial membrane antigen

Mean IRS score

2.84

2.11

0.41

Percentage of positive cells

0

0%

25.5%

1

26.9%

32.7%

2

50.0%

34.5%

3

23.1%

7.3%

4

0%

0%

Staining intensity

0

0%

25.5%

1

61.5%

40.0%

2

38.5%

21.8%

3

0%

12.7%

E-cadherin

Mean IRS score

10.64

10.45

0.79

Percentage of positive cells

0

0%

0%

1

0%

0%

2

3.8%

0%

3

19.2%

45.5%

4

77.0%

54.5%

Staining intensity

0

0%

0%

1

0%

0%

2

15.4%

5.5%

3

84.6%

94.5%

B-catenin

Mean IRS score

5.92

3.85

0.82

Percentage of positive cells

0

7.7%

5.4%

1

23.1%

16.4%

2

15.4%

56.4%

3

46.1%

14.5%

4

7.7%

7.3%

Staining intensity

0

7.7%

5.5%

1

23.1%

32.7%

2

11.5%

50.9%

3

57.7%

10.9%

  1. Percentage of positive cells: score of 0, no cells with positive reaction; 1, ≤ 10% cells with positive reaction; 2, 11 to 50% cells with positive reaction; 3, 51 to 80% cells with positive reaction; 4, > 80% cells with positive reaction
  2. Staining intensity: 0, no colour reaction; 1, poor colour reaction; 2, moderate colour reaction; 3, intensive colour reaction
  3. *Pearson’s chi-square test