Table 4. Relationship between epithelial marker and uPAR expression in bone marrow and peripheral blood and clinicopathologic findings.

		Epithelial marker and uPAR expression in BM			Epithelial marker and uPAR expression in PB
		Both positive	Others		Both positive	Others
	Total (n=846)	n=126	n=720	P-value	n=200	n=646	P-value
Age (mean±s.d.*)		60.9±0.97	61.6±0.43	NS	60.8±0.81	61.7±0.45	NS
Gender				0.403
Male	567	88 (69.8)	479 (66.5)		130 (65.0)	437 (67.6)	0.526
Female	279	38 (30.2)	241 (33.5)		70 (35.0)	209 (32.4)
Histology				0.645
Differentiated	188	30 (23.8)	158 (21.9)		45 (22.5)	143 (22.1)	0.914
Undifferentiated	658	96 (76.2)	562 (78.1)		155 (77.5)	503 (77.9)
pT				0.183
pT1/T2	657	92 (73.0)	565 (78.5)		147 (73.5)	510 (79.0)	0.11
pT3/T4	189	34 (27.0)	155 (21.5)		53 (26.5)	136 (21.0)
pN					0.012
pN0	496	61 (48.4)	435 (60.4)		112 (56.0)	384 (59.4)	0.389
pN1	350	65 (51.6)	285 (39.6)		88 (44.0)	262 (40.6)
pM (Distant metastasis)				0.108
pM0	743	105 (83.3)	638 (88.6)		170 (85.0)	573 (88.7)	0.171
pM1	103	21 (16.7)	82 (11.4)		30 (15.0)	73 (11.3)
Postoperative recurrence				0.145
Non recurrence	833	122 (96.8)	711 (98.8)		197 (98.5)	636 (98.5)	0.961
Recurrence	13	4 (3.2)	9 (1.2)		3 (1.5)	10 (1.5)
Lymphatic invasion				0.009
Negative	486	59 (46.8)	427 (59.3)		117 (58.5)	369 (57.1)	0.73
Positive	360	67 (53.2)	293 (40.7)		83 (41.5)	277 (42.9)
Venous invasion				0.102
Negative	702	98 (77.8)	604 (83.9)		162 (81.0)	540 (83.6)	0.399
Positive	144	28 (22.2)	116 (16.1)		38 (19.0)	106 (16.4)
Stage				0.024
I, II	634	84 (66.7)	550 (76.4)		141 (70.5)	493 (76.3)	0.101
III, IV	212	42 (33.3)	170 (23.4)		59 (29.5)	153 (23.7)

^*s.d.=standard deviation.