No. of patients

Age

≤65

125

>65

259

Gender

Male

198

Female

186

Smoking status

Never

172

Current/Former

212

Brinkman index

0

172

1 - 500

58

>500

154

Histology

Adenocarcinoma

296

Others

88

pStage

I

296

II-IV

88

pT status

pT1

259

pT2-3

125

pN status

pN0

326

pN1-2

58

CEA

Normal

282

High

102

BMI

<18.5

59

18.5 - 24

219

>24

106