CR+PR

NC+PD

Total

RR (%)

Tumor size

 

 

 

 

T1+T2

30

19

49

61.2

 

T3+T4

33

21

54

61.1

Lymph node metastasis

 

 

 

 

pN0

50

22

72

69.4*

 

pN1

8

8

16

50.0

 

pN2

5

10

15

33.3*

Histopathologic tumor types

 

 

 

 

Well

40

24

64

62.5

 

Moderately

20

14

34

58.8

 

Poorly

3

2

5

60.0

Distant metastasis

 

 

 

 

Negative

60

35

95

63.2

 

Positive

3

5

8

37.5

 

Total

63

40

103

61.2

*p < 0.05, Fisher´┐Żs exact test T1, Tumor 2 cm or less in greatest dimension; T2, Tumor more than 2 cm but not more than 4 cm in greatest dimension; T3, Tumor more than 4 cm; T4, Tumor invades surrounding organs. pN0, Pathologically no regional lymph node metastasis; pN1, Pathologically metastasis in a single ipsilateral lymph node, 3 cm or less in greatest dimension; pN2, Pathologically metastasis in a single ipsilateral lymph node, more than 3 cm but not more than 6 cm in greatest dimension; or in multiple ipsilateral lymph nodes, none more than 6 cm in greatest dimension; or in bilateral or contralateral lymph nodes, none more than 6 cm in greatest dimension.
Table 5: Correlation between treatment effects and clinical behavior.