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Table 3 Impact of lymph node ratio according to different pN stages

From: Using the lymph nodal ratio to predict the risk of locoregional recurrence in lymph node-positive breast cancer patients treated with mastectomy without radiation therapy

Characteristic

 

LRFS

OS

 

n

5-year (%)

10-year (%)

p

5-year (%)

10-year (%)

p

pN1 (1–3 positive nodes)

       

Lymph node ratio

       

 < 0.20

667

90.3

88.2

0.002*

87.3

79.0

0.054

 0.21-0.65

107

80.0

74.8

 

80.1

71.0

 

 > 0.65

6

83.3

—

 

75.0

—

 

pN2 (4–9 positive nodes)

       

Lymph node ratio

       

 < 0.20

16

80.0

—

<0.001*

84.4

56.3

0.004*

 0.21-0.65

141

82.1

77.2

 

72.0

55.2

 

 > 0.65

26

44.6

—

 

49.2

26.2

 

pN3 (≥ 10 positive nodes)

       

Lymph node ratio

       

 < 0.20

7

66.7

—

0.508

80.0

—

0.013*

 0.21-0.65

21

59.2

—

 

69.3

—

 

 > 0.65

77

62.2

49.8

 

41.4

15.4

 
  1. LRFS, Locoregional recurrence-free survival; OS, Overall survival.
  2. *p<0.05 indicates a significant difference.
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Radiation Oncology

ISSN: 1748-717X

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