Table 3.

Univariate and multivariate Cox proportional Hazard models for OS of GC patients after surgery

Characteristics	Median OS (mo)	χ2 value	Univariate P value	HR value	Multivariate P value
Gender		2.583	0.108
Male	36
Female	29
Age at surgery		1.729	0.189
<58	36
≥58	33
Tumor size (cm)		5.721	0.017	1.290 (1.071-1.509)	0.244
<5	41
≥5	27
Tumor location		4.079	0.253
Upper third	40
Middle third	36
Lower third	36
More than 2/3 stomach	16
Depth of tumor invasion		0.017	0.991
T1	0
T2	36
T3	42
T4	34
N stage		20.388	<0.001	1.476 (1.386-1.566)	<0.001
N0	60
N1	48
N2	25
N3	21
Lauren classification		3.231	0.199
Intestinal	36
Diffuse	32
Mixed	33
Differentiation		1.655	0.198
Well-differentiated	36
Poorly-differentiated	32
PHLPP1 expression		7.126	0.008	1.763 (1.501-1.965)	0.005
Negative	27
Positive	41