Table 1 Results of immunohistochemistry

Percentage of immunopositive cells:

0–25%

1 (2)

26–50%

6 (10)

51–75%

10 (16)

76–100%

45 (72)

Staining intensity:

1+

6 (10)

2+

30 (48)

3+

26 (42)

Individual labeling score:

1–3

6 (10)

4–8

30 (48)

9–12

26 (42)

Dichotomized labeling score:

≤ 8

36 (58)

>8

26 (42)