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Table 4 The analysis of patients of each lymph node stage for TV and GTD groups

From: Tumor volume is more reliable to predict nodal metastasis in non-small cell lung cancer of 3.0 cm or less in the greatest tumor diameter

N stage

Total

Negative (%)

Positive (%)

P value

N = 1 (%)

N = 2 (%)

P value

TV

285

  

0.004

  

0.002

 V1 ≤ 0.9 cm3

38

32 (84.2)

6 (15.8)

 

3 (50)

3 (50)

 

 V2 0.9–3.9 cm3

126

98 (77.8)

28 (22.2)

 

12 (42.9)

16 (57.1)

 

 V3 3.9–14.2 cm3

121

74 (61.2)

47 (38.8)

 

15 (31.9)

32 (68.1)

 

GTD

   

0.083

  

0.236

 G1 ≤ 1.0 cm

5

4 (80.0)

1 (20.0)

 

0 (0.0)

1 (100.0)

 

 G2 1.0–2.0 cm

90

72 (80.0)

18 (20.0)

 

6 (33.3)

12 (66.7)

 

 G3 2.0–3.0 cm

190

128 (67.4)

62 (32.6)

 

24 (38.7)

38 (61.3)