Table 1. Relationship between clinicopathological variables and the VEGFRI mRNA expression in peripheral blood bone and marrow from gastric cancer cases.

	VEGFR1 -bone marrow				VEGFR1 -peripheral blood
	Positive		Negative		Positive		Negative
Features	n	(n=23)	(n=67)	P value	n	(n=34)	(n=56)	P-value
Sex
Male	61	16	45	0.83	61	26	35	0.17
Female	29	7	22		29	8	21
Age (mean±s.d.)		62.7±13.4	59.6±11.1	0.14		62.5±11.2	59.2±12	0.1
Stage
1 and 2	55	9	46	<0.05	55	13	42	<0.001
3 and 4	35	14	21		35	21	14
Invasion depth
Slighter than submucus	28	4	24	0.09	28	5	23	<0.01
Deeper than muscularis propria	60	19	43		62	29	33
Lymphatic involvement
Negative	58	10	48	<0.05	58	14	44	<0.001
Positive	32	13	19		32	20	12
Vascular involvement
Negative	65	14	51	0.16	65	16	49	<0.0001
Positive	25	9	16		25	18	7
Lymph node metastasis
Negative	62	10	52	<0.01	62	15	47	<0.0001
Positive	28	13	15		28	19	9
Peritoneal lavage cytology
Negative	71	14	57	<0.05	71	20	51	<0.001
Positive	19	9	10		19	14	5
Peritoneal dissemination
Negative	82	20	62	0.42	82	30	52	0.46
Positive	8	3	5		8	4	4
Perioperative overt metastasis
Negative	72	16	56	0.15	72	23	49	<0.05
Positive	18	7	11		18	11	7
Postoperative recurrence
Negative	78	16	62	<0.01	78	25	53	<0.01
Positive	12	7	5		12	9	3

s.d.=standard deviation.