|
Characteristics
| |
|---|
|
Age (years), mean ± SD
|
55.2 ± 9.8
|
|
Age, N (%)
|
|
< 55
|
32 (45.7)
|
|
≥ 55
|
38 (54.3)
|
|
Gender, N (%)
|
|
Female
|
19 (27.1)
|
|
Male
|
51 (72.9)
|
|
Smoking status, N (%)
|
|
Never-smoker
|
27 (38.6)
|
|
Current/ex-smoker
|
43 (61.4)
|
|
Grade, N (%)
|
|
1–2
|
51 (72.9)
|
|
3
|
19 (27.1)
|
|
Stage, N (%)
|
|
I
|
12 (17.1)
|
|
II
|
15 (21.4)
|
|
III
|
12 (17.1)
|
|
IV
|
31 (44.3)
|
|
Tumor size (cm), mean ± SD
|
5.4 ± 2.78
|
|
Tumor size (cm), N (%)
|
|
< 4
|
25 (35.7)
|
|
≥ 4
|
45 (64.3)
|
|
Laterality, N (%)
|
|
Left
|
36 (51.4)
|
|
Right
|
34 (48.6)
|
|
LN metastasis, N (%)
|
|
No
|
34 (48.6)
|
|
Yes
|
36 (51.4)
|
|
EGFR mutation, N (%)
|
|
Wild type
|
40 (57.1)
|
|
Mutant
|
21 (30.0)
|
|
Unknown
|
9 (12.9)
|
- LN lymph node, EGFR epidermal growth factor receptor
