Table 1 Demographic and clinical features of pathology and surgical groups

Age (years)

61,8 ± 7,2

61,1 ± 9

0,587

Sex

Male

79 (90,8)

74 (89,1)

0,720

Female

8 (9,2)

9 (10,8)

Side

Right

44 (50,5)

44 (53)

0,751

Left

43 (49,4)

39 (46,9)

Resection Type

LLL

16 (18,3)

10 (12)

0,349

LP

12 (13,7)

11 (13,2)

0,918

LUL

15 (17,2)

18 (21,6)

0,590

RBI

3 (3,4)

4 (4,8)

0,949

RBS

2 (2,3)

1 (1,2)

0,588

RLL

10 (11,4)

7 (8,4)

0,682

RML

4 (4,6)

7 (8,4)

0,481

RP

4 (4,6)

3 (3,6)

0,747

RUL

21 (24,1)

22 (26,5)

0,858

Histology

Adenocarcinoma

40 (45,9)

38 (45,7)

0,980

Squamous cell carcinoma

47 (54,0)

45 (54,2)

Tumor Differentiation

Well

10 (11,4)

8 (9,6)

0,848

İntermadiate

52 (59,7)

53 (63,8)

Poor

25 (28,7)

22 (26,5)

Visceral pleural involvement status

No

76 (87,3)

61 (73,4)

0,022

Yes

11 (12,6)

22 (26,5)

T Pathology Size (mm)

31,7 ± 12,96

31,24 ± 14,95

0,830

T Phase (according to TNM 8)

1 A

0 (0,0)

3 (3,6)

0,114

1B

14 (16,0)

16 (19,2)

0,688

1 C

22 (25,2)

22 (26,5)

0,995

2 A

34 (39,0)

24 (28,9)

0,845

2B

11 (12,6)

8 (9,6)

0,705

3

6 (6,9)

10 (12,0)

0,375

Number of N1 lymph node dissections performed

2,39 ± 2,58

9,08 ± 4,14

0,0001

N1 lymph node status

No

64 (73,5)

57 (68,6)

0,482

Yes

23 (26,4)

26 (31,3)

Number of positive N1 lymph node involvement

None

64 (73,5)

57 (68,6)

0,0001

Single

23 (26,4)

8 (9,6)

Multiple

0 (0,0)

18 (21,6)

TNM 8 Staging

1A1

0 (0,0)

3 (3,6)

0,227

1A2

14 (16,0)

15 (18,0)

0,889

1A3

22 (25,2)

18 (21,6)

0,709

1B

16 (18,3)

15 (18,0)

0,978

2 A

8 (9,2)

3 (3,6)

0,243

2B

25 (28,7)

20 (24,1)

0,609

3 A

2 (2,3)

9 (10,8)

0,055

Follow-up time (month)

27,9 ± 18,36

28,9 ± 17,11

0,701