Table 2.

Univariate and multivariate logistics analysis of bone metastasis in gastric cancer patients.

Characteristics	Univariate Analysis			Multivariate Analysis
	OR	CI	P-value	OR	CI	P-value
Age	0.98	0.98-0.99	<0.001	0.98	0.98-0.99	<0.001
AJCC_T
T1	Ref	Ref		Ref	Ref
T2	0.45	0.3-0.69	<0.001	0.53	0.35-0.81	0.003
T3	0.72	0.56-0.94	0.017	0.69	0.52-0.91	0.008
T4	2.27	1.85-2.78	<0.001	1.64	1.32-2.04	<0.001
Grade
I	Ref	Ref		Ref	Ref
II	6.14	3-12.59	<0.001	4.45	2.15-9.19	<0.001
III	12.15	6.04-24.46	<0.001	9.25	4.57-18.73	<0.001
IV	7.33	3.02-17.79	<0.001	5.2	2.1-12.87	<0.001
Marital_status
No	Ref	Ref
Yes	0.94	0.8-1.1	0.45
Mets_brain
No	Ref	Ref		Ref	Ref
Yes	10.26	6.55-16.08	<0.001	4.2	2.54-6.94	<0.001
Mets_liver
No	Ref	Ref		Ref	Ref
Yes	3.42	2.9-4.04	<0.001	1.75	1.44-2.11	<0.001
Mets_lung
No	Ref	Ref		Ref	Ref
Yes	7.83	6.44-9.52	<0.001	4.29	3.45-5.34	<0.001
AJCC_N
N1	Ref	Ref		Ref	Ref
N2	0.56	0.4-0.79	0.001	0.62	0.44-0.88	0.008
N3	1.29	1.06-1.57	0.011	0.89	0.72-1.09	0.252
Race
White	Ref	Ref		Ref	Ref
Black	0.71	0.54-0.92	0.011	0.78	0.59-1.03	0.081
Other	1.03	0.83-1.27	0.806	1.21	0.97-1.51	0.097
Sex
Male	Ref	Ref		Ref	Ref
Female	0.82	0.69-0.96	0.015	0.93	0.78-1.11	0.409
Site
Other	Ref	Ref		Ref	Ref
Cardia	1.29	1.1-1.52	0.002	1.22	1.02-1.47	0.032
Gastric antrum	0.5	0.38-0.66	<0.001	0.51	0.38-0.67	<0.001