Wild type

Mutant EGFR

p value

Age

<65

58

57

0.970

≥65

35

34

Gender

Men

61

29

<0.0001

Women

32

62

pStage

I

58

74

0.004

II - IV

35

17

pT status

pT1

52

69

0.0042

pT2 - 3

41

22

pN status

pN0

70

76

0.1657

pN1 - 2

23

15

Histology

Lepidic dominant

15

40

0.0001

Others

78

51

CT findings

Pure/mixed GGO

19

49

<0.0001

Solid

74

42

Smoking status

Never

30

61

<0.0001

Ever

63

30

CEA

Normal

60

66

0.2416

High

33

25