Table 1.

Clinical characteristics of 61 lung adenocarcinoma patients with Stage I disease.

Variables		# Patients	%	Low Risk	High Risk	p-val
Age						1
	=>65	39	63.9	22	17
	<65	22	36.1	13	9
Sex						0.1171
	Male	34	55.7	23	11
	Female	27	44.3	12	15
Smoking						0.2763
	Smokers	19	31.2	13	6
	Never Smoked	42	68.9	22	20
Tumor Size						0.5914
	<=2 mm	22	36.1	14	8
	>2 mm	39	63.9	21	18
EGFR mutation status						0.6001
	EGFR +	36	59	22	14
	EGFR −	25	41	13	12
Relapse						0.0003
	Relapse	21	34.4	5	16
	No Relapse	40	65.6	30	10
Survival						0.5626
	Survival	45	73.8	27	18
	Death	16	26.2	8	8