Long-term outcomes after radical gastrectomy in gastric cancer patients with overt bleeding

Table 4 Patient characteristics for middle and lower gastric cancer patients n (%)

	Middle gastric cancer			Lower gastric cancer
	Non-OB	OB	P value	Non-OB	OB	P value
Gender1			0.902			0.684
Male	29 (58)	9 (56.3)		229 (67.4)	50 (64.9)
Female	21 (42)	7 (43.8)		111 (32.6)	27 (35.1)
Age2	62.3 ± 11.2	61.3 ± 14.8	0.616	62.8 ± 11.9	62.6 ± 13.6	1.000
AJCC stage1			0.319			0.659
I-II	18 (36.0)	8 (50.0)		176 (51.8)	42 (54.5)
III-IV	32 (64.0)	8 (50.0)		164 (48.2)	35 (45.5)
T category1			0.291			0.891
T1-T2	12 (24)	6 (37.5)		134 (39.4)	31 (40.3)
T3-T4	38 (76)	10 (62.5)		206 (60.6)	46 (59.7)
Involved lymph nodes2	8.5 ± 10.6	7.1 ± 9.0	0.432	5.1 ± 7.9	4.5 ± 6.2	0.844
N category1			0.104			0.396
N0	14 (28.0)	8 (50)		137 (40.3)	27 (35.1)
N1-N3	36 (72.0)	8 (50)		203 (59.7)	50 (64.9)
Macroscopic (Borrmann) type1			0.577			0.742
EGC	7 (14.0)	3 (18.8)		76 (22.4)	12 (15.6)
I	4 (8.0)	2 (12.5)		18 (5.3)	4 (5.2)
II	29 (58.0)	7 (43.8)		207 (60.9)	51 (66.2)
III	2 (4.0)	2 (12.5)		12 (3.5)	3 (3.9)
IV	8 (16.0)	2 (12.5)		27 (7.9)	7 (9.1)
Histological grade1			0.554			0.282
G1-G2	10 (20)	5 (31.3)		119 (35.0)	22 (28.6)
G3-G4	40 (80)	11 (68.8)		221 (65)	55 (71.4)
Size (cm)2	5.0 ± 3.0	4.0 ± 2.5	0.246	4.4 ± 2.8	4.1 ± 2.1	0.745
R status1			1.000			0.559
R0	48 (96.0)	15 (93.8)		337 (99.1)	76 (98.7)
R1 + R2	2 (4.0)	1 (6.3)		3 (0.9)	1 (1.3)
Lymphovascular invasion1			0.266			0.445
Positive	39 (78.0)	15 (93.8)		290 (85.3)	63 (81.8)
Negative	11 (22.0)	1 (6.3)		50 (14.3)	14 (18.2)

¹Pearson’s χ² test;

²Mann-Whitney U-test. EGC: Early gastric cancer; OB: Overt bleeding.