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301例手术切除肺腺癌患者一般资料

Characteristics in patients with resected lung adenocarcinomas

Characteristics	EGFR (+)	EGFR (-)	P
EGFR:epidermal growth factor receptor.
No of patients	158 (52.5%)	143 (47.5%)
Subtype of EGFR		-
Exon 19	78 (49.4%)	-
Exon 21	53 (33.5%)	-
Exon 18	6 (3.8%)	-
Double positive	21 (13.3%)	-
Gender			0.047
Female	91 (58.0%)	66 (42.0%)
Male	67 (46.5%)	77 (53.5%)
Smoking history			< 0.001
Never or mild smoking (< 400 cigarette years)	130 (59.6%)	88 (40.4%)
Heavy smoking (≥400 cigarette years)	28 (33.7%)	55 (66.3%)
Age (yr)			0.143
> 60	74 (57.4%)	55 (42.6%)
≤60	84 (48.8%)	88 (51.2%)
Surgical stages			0.992
Ⅰa, Ⅰb	94 (52.2%)	86 (47.8%)
Ⅱa, Ⅱb	25 (53.2%)	22 (46.8%)
Ⅲa	39 (52.7%)	35 (47.3%)