Long-term prognostic impact of circulating tumour cells in gastric cancer patients

Table 1 Patient characteristics and clinical findings

Variable		Number of patients
Sex	Male	46
	Female	19
Age (yr; mean, range)		58.8; 33-76
Gastrectomy	Distal	29
	Total	32
	None	4
Surgical curability	R0	57
	R1	0
	R2	8
Clinical course	Survival without relapse	47
	Survival after relapse	2
	Survival after non-curative surgery	1
	Decease	15
Recurrence site (including overlap)	None	47
	Remnant stomach	1
	Hematogenous	5
	Lymphatic	4
	Peritoneal dissemination	5
	Non-curative surgery	8
Postoperative chemotherapy	None	37
	Adjuvant chemotherapy	11
	Adjuvant and therapeutic chemotherapy	9
	Therapeutic chemotherapy after non-curative surgery	8
TNM stage	I	40
	II	6
	III	10
	IV	9
Depth of tumour invasion	T1	36
	T2	8
	T3	9
	T4	12
Lymph node metastasis	N0	39
	N1	5
	N2	6
	N3	15
Distant metastasis	M0	56
	M1	9
Main histological type	Differentiated	25
	Undifferentiated	40
Lymphatic invasion	L0	35
	L1	26
	LX	4
Venous invasion	V0	35
	V1-2	26
	VX	4