Table 1 Patient characteristics and clinicopathological parameters in relation to response status.

Age (year)

61 ± 8*

58 ± 12*

n.s.

59 ± 7

57 ± 10

n.s.

Gender

male

23

16

7

18

11

7

female

8

2

6

n.s.

17

10

7

n.s.

Infiltration depth

uT3

26

13

13

32

19

13

uT4

5

5

0

n.s.

3

2

1

n.s.

LN-involvement

uN0

14

8

6

9

6

3

uNpos

17

10

7

n.s.

26

15

11

n.s.

optimal HT ¹

16

13

3

suboptimal HT ²

15

5

10

0.01

radiation dose

< 45.94 Gy

2

1

1

1

0

1

≥ 45.94 Gy

29

17

12

n.s.

34

21

13

n.s.