Group A

Group B

Total

p value

n

63

68

131

-

Age (median)

67

66

66

-

Gender

Male

43

56

99

0.069

Female

20

12

32

Histology

Adenocarcinoma

31

24

55

0.115

Squamous Cell Carcinoma

29

44

73

Other

3

0

3

0.108

ASA

I

1

1

2

1

II

9

8

17

0.796

III

51

57

108

0.819

IV

2

2

4

1

Surgery

Wedge Resection

6

1

7

0.055

Segmental Resection

1

0

1

0.481

Sleeve Resection

3

1

4

0.351

Lobectomy

48

46

94

0.333

Bilobectomy

4

5

9

1

Pneumonectomy

2

14

16

0.002^*

UICC Stage

I

38

25

63

0.009^*

II

8

24

32

0.004^*

III

17

19

36

1

Lymphadenectomy

Local

4

2

6

0.427

Systematic

5

9

14

0.403

1 Station

17

10

27

0.089

2 Stations

29

20

49

0.070

3 Stations

13

22

35

0.167

4 Stations

4

13

27

0.0376^*

5 Stations

0

2

2

0.497

pN0

48

31

79

0.0003^*

pN1

8

23

31

0.019^*

pN2

7

13

20

0.23

pN3

0

1

1

1