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Table 1 The relationship between clinicopathologic characteristics and lymph node involvement

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

 

Cases (%)

pN0 (%)

pN1(%)

pN2 (%)

P value

Total

285 (100)

204 (71.6)

30 (10.5)

51 (17.9)

 

Sex

0.948

 Male

155 (54.4)

111 (38.9)

17 (6.0)

27 (9.5)

 

 Female

130 (45.6)

93 (32.6)

13 (4.6)

24 (8.4)

 

Age

0.812

 < 70

240 (84.2)

170 (59.6)

26 (9.1)

44 (15.4)

 

 ≥ 70

45 (15.8)

34 (11.9)

4 (1.4)

7 (2.6)

 

Smoking

0.981

 No

166 (58.2)

119 (41.8)

17 (6.0)

30 (10.5)

 

 Yes

119 (41.8)

85 (29.8)

13 (4.6)

21 (7.3)

 

Type of surgery

0.199

 Open

170 (59.6)

115 (40.4)

20 (7.0)

35 (12.3)

 

 VATS

115 (40.4)

89 (31.2)

10 (3.5)

16 (5.6)

 

Excision site

0.364

 Lobectomy

280 (98.2)

201 (70.5)

30 (10.5)

49 (17.2)

 

 Pneumonectomy

5 (0.8)

3 (1.1)

0 (0)

2 (0.7)

 

Tumor location

0.967

 Right upper

79 (27.7)

56 (19.6)

8 (2.8)

15 (5.3)

 

 Right median

26 (9.1)

21 (7.4)

2 (0.7)

3 (1.1)

 

 Right lower

46 (16.2)

33 (11.6)

5 (1.8)

8 (2.8)

 

 Left upper

77 (27.0)

54 (18.9)

9 (3.1)

14 (4.7)

 

 Left lower

40 (14.0)

28 (9.8)

5 (1.8)

7 (2.6)

 

 Others

17 (6.0)

12 (4.2)

1 (0.4)

1 (0.4)

 

Histology

0.038

 Adenocarcinoma

232 (81.4)

163 (57.2)

26 (9.1)

43 (15.1)

 

 Squamous cell carcinoma

35 (12.3)

28 (9.8)

4 (1.4)

3 (1.1)

 

 Others

18 (6.3)

13 (4.6)

0 (0)

5 (1.7)

 

Histologic differentiation

< 0.001

 Poorly differentiated

96 (33.7)

57 (20)

8 (2.8)

31 (10.9)

 

 Moderately differentiated

153 (53.7)

13 (4.6)

21 (7.4)

19 (6.7)

 

 Well differentiated

36 (12.6)

34 (11.9)

1 (0.4)

1 (0.3)

 

Visceral pleural invasion

0.752

 Absent

167 (58.6)

120 (42.1)

19 (6.7)

28 (9.8)

 

 Present

118 (41.4)

84 (29.5)

11 (3.9)

23 (8.0)