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Table 3 Clinical and pathologic characteristics of patients clinically suspected of lymph node metastasis for subgroups based on type of axillary operation

From: Feasibility of sentinel lymph node biopsy in breast cancer patients clinically suspected of axillary lymph node metastasis on preoperative imaging

Characteristics

SLNB (n=176)

ALND (n= 180)

P(Chi-square test)

Mean age ± SD

52.00 ± 9.61

47.00 ± 9.45

0.743

Axillary recurrence

  

0.420

  No

171

172

 

  Yes

5

8

 

Recurrence

  

0.049

  No

159

151

 

  Yes

16

29

 

T stage

  

0.001

  pT1

120

86

 

  pT2

45

78

 

  pT3

11

14

 

  pT4

0

2

 

N stage

  

0.001

  pN0

127

91

 

  pN1

35

74

 

  pN2

7

6

 

  pN3

7

9

 

Stage

  

0.001

  Stage I

98

54

 

  Stage IIA

41

63

 

  Stage IIB

21

38

 

  Stage IIIA

9

15

 

  Stage IIIB

0

2

 

  Stage IIIC

7

8

 

Size of tumor, cm, mean ± SD

2.06 ± 1.91

2.62 ± 1.70

0.019

Histology

  

0.013

  G1

47

27

 

  G2

73

96

 

  G3

43

48

 

Nuclear

  

0.104

  G1

22

20

 

  G2

103

90

 

  G3

45

65

 

ER

  

0.833

  Negative

63

66

 

  Positive

113

113

 

PR

  

0.311

  Negative

71

79

 

  Positive

105

101

 

IHC

  

0.525

  Negative/1+

92

89

 

  2+

38

47

 

  3+

46

41

 

Lymphovascular invasion

  

0.002

  No

113

63

 

  Yes

86

94

 
  1. ER,estrogen receptor; PR,progesterone receptor; IHC,immunohistochemistry.