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Table 1 Demographic characteristics of the study population (n = 385)

From: Programmed death-ligand 1 expression associated with molecular characteristics in surgically resected lung adenocarcinoma

 

Number

Gender

 Male

198

 Female

187

Age

 

 Range

28–79

 Median

59

 <60

207

 ≥60

178

Smoking status

 Never

235

 Former/current

150

Stage

 I

121

 II

79

 III

185

PD-L1 expression

 Yes

186

 No

199

Gene alteration

 EGFR

205

 ALK

18

 KRAS

16

 HER2

9

 ROS1

8

 PIK3CA

6

 RET

6

 BRAF

2

 NRAS

1

 Concurrent alteration

24

 Pan-negative

90

Adjuvant treatment

 Yes

269

 No

116