Table 1.

Association between TF expression in plasma and patients' characteristics.

Factors	Plasma TF(n=100)		p
	Low(n=50)	High(n=50)
Age(years)			0.006
≤65	31	43
>65	19	7
Gender			0.107
Male	24	32
Female	26	18
Smoking status			0.317
Nonsmoker	28	23
Ever-smoker	22	27
Histologic type			0.603
Non-squamous	42	40
Squamous	8	10
T status			0.137
T1-2	46	41
T3-4	4	9
N status			0.499
N0	38	35
N1-3	12	15
Stage			0.062
I-II	45	38
III-IV	5	12
Differentiation			0.829
Well,moderate	34	35
poor	16	15
EGFR mutation status			0.840
Mutated	21	22
Wild type	29	28