Characteristics | EGFR | ||||
---|---|---|---|---|---|
Mutations | Wild | χ 2 | P | ||
Sex | Male | 7 | 42 | 0.235 | 0.628 |
Female | 5 | 22 | |||
Age | ≤65 | 8 | 41 | 0.09 | 0.764 |
>65 | 4 | 25 | |||
Smoking | Yes | 3 | 38 | 4.806 | 0.028 |
No* | 9 | 26 | |||
pTNM stage | ≤IIIa | 3 | 15 | 0.014 | 0.907 |
>IIIa | 9 | 49 | |||
Tumor differentiation | Well-differentiated | 10 | 36 | 3.102 | 0.078 |
Poorly differentiated | 2 | 28 |