1.

Demographic data of NSCLC patients and healthy control

Item	NSCLC patients	Healthy control	P
Number	85	60
Age (mean ±SD, years)	59.38±9.08	62.34 ±8.88	0.053
Gender			0.415
Male	62	40
Female	23	20
Smoking index			0.440
≥400	16	9	0.55
<400	69	51
Hyperlipidemia patients	19	13	0.93
Alcohol user	9	6	0.91
Hypertension patients	8	9	0.304
CHD patients	4	6	0.22
Diabetic	3	4	0.39