Surgery for gastric cancer patients of age 85 and older: Multicenter survey

Table 3 Univariate and multivariate analyses for survival

	n = 113	5-yr survival	Univariate	Multivariate
			P value	HR	95%CI	P value
Sex
Male	65	33	0.17	-
Female	48	48
Comorbidities
< 2	93	35	0.35	-
≥ 2	20	63
Operation
Total	29	36	0.13	-
Others	84	41
Procedure
Open	101	37	0.10	-
Laparoscopy	12	62
Lymphadenectomy
Radical	59	43	0.01	1.00	1.00-4.97	0.05
Limited	54	35		2.19
Operative time (min)
< 240	76	32	0.34	-
≥ 240	33	58
Unknown	4
Bleeding (g)
< 400	91	40	0.12	-
≥ 400	18	27
Unknown	4
cT
1-2	63	49	< 0.01	1.16	0.41-3.23	0.78
3-4	50	27		1.00
cN
Absent	67	45	0.43	-
Present	46	35
cStage
I-II	87	40	0.59	-
III- IV	26	37
pT
1-2	62	58	< 0.01	1.00	1.29-20.7	0.02
3-4	51	16		4.68
pN
Absent	58	56	< 0.01	1.00	0.68-5.62	0.24
Present	55	23		1.84
pStage
I-II	78	55	< 0.01	-
III- IV	35	9
Residual tumor
R0	103	41	0.06	1.14	0.39-3.87	0.81
R1	10	31		1.00
Lymphatic invasion
Absent	37	55	0.09	1.49	0.43-5.10	0.53
Present	67	29		1.00
Unknown	9
Venous invasion
Absent	53	58	< 0.01	1.00	0.75-5.80	0.17
Present	51	15		2.00
Unknown	9
Complications
Absent	81	34	0.31	-
Present	32	51