No. of patients

Age

≤65

48

>65

39

Gender

Male

47

Female

40

Smoking status

Never

50

Current/former

37

Brinkman index

0

50

1 - 500

18

>500

19

Histology

Benign lung tumor

6

Benign mediastinal tumor

33

Inflammatory lung disease

37

Others

11

CEA

Normal

78

High

9

BMI

<18.5

7

18.5 - 24

53

>24

27