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Table 1 Main characteristics of the patients, pTNM-Classification 2017, 8th Edition

From: Predictive risk factors for lymph node metastasis in patients with resected non-small cell lung cancer: a case control study

Characteristics

Number of Patients (n)

Percentage

Tumor-localization

 central

53

26.2%

 peripheral

149

73.8%

Histology

 adenocarcinoma

117

57.4%

 SCCa

75

36.8%

 others

12

5.9%

Grading

In situ

2

1%

 G1

25

12.4%

 G2

95

47.0%

 G3

68

33.3%

 G4

12

5.9%

pT-category

pTis

2

1%

pT1

90

45.1%

 pT1a

10

4.9%

 pT1b

37

18.1%

 pT1c

43

21.1%

pT2

44

26.5

 pT2a

39

19.1%

 pT2b

15

7.4%

pT3

35

17.2%

pT4

23

11.3

pN-category

 pN0

126

61.8%

 pN1

33

16.2%

 pN2

45

22%

pM-category

 pM0

193

94.5%

 pM1a

5

2.5%

 pM1b

5

2.5%

 pM1c

1

0.5%

 pL-Status

  

 pL0

57

28.1%

 pL1

146

71.9%

 pV-Status

  

 pV0

165

81.3%

 pV1

38

18.7%

  1. aSCC Squamous cell carcinoma