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

Table 2 Patient characteristics for the whole patient group and upper gastric cancer patients n (%)

	All			Upper gastric cancer
	Non-OB	OB	P value	Non-OB	OB	P value
Gender1			0.718			0.996
Male	352 (67.6)	87 (65.9)		94 (71.8)	28 (71.8)
Female	169 (32.4)	45 (34.1)		37 (28.2)	11 (28.2)
Age2	63.2 ± 11.6	62.2 ± 13.4	0.497	64.8 ± 10.6	62 ± 12.8	0.276
AJCC stage1			0.081			0.017a
I-II	240 (46.1)	72 (54.5)		46 (35.1)	22 (56.4)
III-IV	281 (53.9)	60 (45.5)		85 (64.9)	17 (43.6)
T category1			0.201			0.010a
T1-T2	163 (31.3)	49 (37.1)		17 (13)	12 (30.8)
T3-T4	358 (68.7)	83 (62.9)		114 (87)	27 (69.2)
Involved lymph nodes2	5.4 ± 7.8	4.7 ± 6.5	0.523	4.9 ± 5.9	4.2 ± 6.0	0.248
N category1			0.793			0.311
N0	187 (35.9)	49 (37.1)		36 (27.5)	14 (35.9)
N1-N3	334 (64.1)	83 (62.9)		95 (72.5)	25 (64.1)
Macroscopic (Borrmann) type1			0.357			0.036a
EGC	90 (17.5)	19 (14.4)		8 (6.1)	4 (10.3)
I	30 (5.8)	14 (10.6)		8 (6.1)	8 (20.5)
II	325 (62.4)	81 (61.4)		89 (67.9)	23 (59)
III	23 (4.4)	5 (3.8)		9 (6.9)	0 (0)
IV	52 (10)	13 (9.8)		17 (13)	4 (10.3)
Histological grade1			0.448			0.770
G1-G2	176 (33.8)	40 (30.3)		47 (35.9)	13 (33.3)
G3-G4	345 (66.2)	92 (69.7)		84 (64.1)	26 (66.7)
Size (cm)2	4.7 ± 2.9	4.1 ± 2.1	0.083	5.4 ± 3.0	4.1 ± 2.0	0.018a
R status1			0.729			0.114
R0	508 (97.5)	130 (98.5)		123 (93.9)	39 (100)
R1	13 (2.5)	2 (1.5)		8 (6.1)	0 (0)
Lymphovascular invasion1			0.785			0.484
Positive	437 (83.9)	112 (84.8)		108 (82.4)	34 (87.2)
Negative	84 (16.1)	20 (15.2)		23 (17.6)	5 (12.8)

¹Pearson’s χ² test;

²Mann-Whitney U-test.

^aP < 0.05, non-OB vs OB. EGC: Early gastric cancer; OB: Overt bleeding.