Table 4.

Multivariate logistic regression for analyzing the risk factors for early death.

Variable	All-cause early death			Cancer-specific early death
	OR	95%CI	P value	OR	95%CI	P value
Race
White	1(ref)			1(ref)
Black	0.96	0.70-1.32	0.796	1.11	0.80-1.54	0.523
Other	0.59	0.44-0.77	<0.001	0.65	0.49-0.87	0.003
Primary site
Cardia/fundus	1(ref)			1(ref)
Body	1.31	0.90-1.91	0.152	1.22	0.83-1.80	0.308
Antrum/pylorus	1.5	1.13-2.00	0.005	1.34	1.00-1.79	0.053
Lesser/greater curvature	0.94	0.65-1.35	0.72	0.92	0.63-1.35	0.67
Other	1.71	1.27-2.31	<0.001	1.55	1.14-2.10	0.005
Differentiation grade
I	1(ref)			1(ref)
II	1.13	0.70-1.81	0.62	1.14	0.68-1.92	0.611
III	1.54	0.97-2.44	0.069	1.63	0.99-2.68	0.056
IV	1.74	0.78-3.89	0.176	1.58	0.68-3.69	0.292
AJCC Stage
I	1(ref)			1(ref)
II	1.07	0.70-1.63	0.758	0.75	0.49-1.17	0.203
III	1.96	1.21-3.17	0.006	1.39	0.90-2.15	0.133
IV	3.62	2.50-5.22	<0.001	2.39	1.62-3.53	<0.001
T stage
T1	1(ref)			1(ref)
T2	0.69	0.48-0.99	0.045	0.78	0.53-1.15	0.205
T3	0.87	0.60-1.25	0.444	1.03	0.71-1.49	0.895
T4	1.07	0.73-1.57	0.729	1.41	0.96-2.07	0.083
N stage
N0	1(ref)			1(ref)
N1	0.76	0.57-1.01	0.055	NA	NA	NA
N2	0.55	0.36-0.84	0.006	NA	NA	NA
N3	0.69	0.46-1.04	0.08	NA	NA	NA
Surgery
No	1(ref)			1(ref)
Yes	0.41	0.32-0.53	<0.001	0.3	0.23-0.39	<0.001
Chemotherapy
No/Unknown	1(ref)			1(ref)
Yes	0.14	0.11-0.18	<0.001	0.16	0.13-0.21	<0.001
Liver metastases
No	1(ref)			1(ref)
Yes	NA	NA	NA	1.48	1.02-2.14	0.039

OR, odds ratio; ref, reference. NA, not applicable.