5-year survivors

Non-survivors

p Value

Age

<65

15

7

0.028

≥65

26

37

Gender

Male

35

41

0.239

Female

6

3

Smoking status

Current/former

39

39

0.269

Never

2

5

p-stage

I

28

21

0.054

II-III

13

23

pT status

pT1

22

16

0.108

pT2-3

19

28

pN status

pN0

35

27

0.011

pN1-2

6

17

Tumor location

Central

19

21

0.898

Peripheral

22

23

IP

IP+

3

10

0.043

IP−

38

34

CEA

Normal

30

31

0.781

High

11

13

SCC

Normal

28

16

0.003

High

13

28

CYFRA 21-1

Normal

29

18

0.005

High

12

26

SCC & CYFRA 21-1

Both normal

23

9

0.001

Others

18

35