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Table 3 Clinical characteristics of patients with NLSLNM and LSLNM

From: Is lobe specific lymph node dissection adequate for cN0–1 non-small cell lung cancer?

Variables

NLSLNM (n = 129)

LSLNM (n = 230)

P value

Sex

  

0.149

 Male

61 (47.3%)

127 (55.2%)

 

 Female

68 (52.7%)

103 (44.8%)

 

Age, years

  

0.176

 Median (range)

61 (26–83)

60.5 (27–80)

 

 Smoking history

42 (32.6%)

115 (50.0%)

0.001

 Hypertension

21 (16.3%)

66 (28.7%)

0.008

 Diabetes

8 (6.2%)

14 (6.1%)

0.965

 Other pulmonary diseases

5 (3.9%)

5 (2.2%)

0.544

 Other malignant tumors within 5 years

0 (0)

4 (1.7%)

0.326

CEA level

  

0.004

 >5 ng/ml

65 (50.4%)

80 (34.8%)

 

 ≤5 ng/ml

64 (49.6%)

150 (65.2%)

 

Tumor location

  

< 0.001

 RUL

19 (14.7%)

59 (25.7%)

 

 RLL

54 (41.9%)

46 (20.0%)

 

 LUL

26 (20.2%)

71 (30.9%)

 

 LLL

30 (23.3%)

54 (23.5%)

 

CT characteristics

  

0.404

 GGO

1 (0.8%)

1 (0.4%)

 

 Partially solid

4 (3.1%)

14 (6.1%)

 

 Solid

124 (96.1%)

215 (93.5%)

 

Clinical T stage

  

0.493

 T1a

2 (1.6%)

4 (1.7%)

 

 T1b

19 (14.7%)

49 (21.3%)

 

 T1c

47 (36.4%)

70 (30.4%)

 

 T2a

27 (20.9%)

56 (24.3%)

 

 T2b

20 (15.5%)

27 (11.7%)

 

 T3

13 (10.1%)

19 (8.3%)

 

 T4

1 (0.8%)

5 (2.2%)

 

Clinical N stage

  

0.647

 N0

118 (91.5%)

207 (90.0%)

 

 N1

11 (8.5%)

23 (10.0%)

 

Surgical approach

  

0.052

 Thoracotomy

71 (55.0%)

102 (44.3%)

 

 VATS

58 (45.0%)

128 (55.7%)

 

Surgical resection

  

0.345

 Segmentectomy

2 (1.6%)

6 (2.6%)

 

 Lobectomy

120 (93.0%)

207 (90.0%)

 

 Sleeve lobectomy

2 (1.6%)

11 (4.8%)

 

 Pneumonectomy

5 (3.9%)

6 (2.6%)

 
  1. NLSLNM non-lobe specific lymph node metastasis; LSLNM lobe specific lymph node metastasis; CEA carcinoembryonic antigen; RUL right upper lobe; RLL right lower lobe; LUL left upper lobe; LLL left lower lobe; GGO ground-glass opacity; VATS video assisted thoracic surgery
  2. Values are N (percentage) unless otherwise specified