Prognostic factors in stage IB gastric cancer

Table 3 Uni- and multivariate Cox proportional hazards analysis of clinicopathological factors

Characteristics	Number	Univariate			Multivariate
		OR	95%CI	P value	OR	95%CI	P value
Age (yr)				0.078
< 70	69	1.000
≥ 70	34	3.147	0.879-11.271
Gender				0.186
Female	38	1.000
Male	65	4.118	0.506-33.527
Tumor location				0.018			0.018
M or L	76	1.000			1.000
U	27	5.273	1.326-20.969		5.273	1.326-20.969
Pathological tumor diameter (mm)				0.874
≤ 40	60	1.000
> 40	43	1.123	0.268-4.704
Histological type				0.482
Differentiated	43	1.000
Undifferentiated	60	1.608	0.428-6.041
Number of lymph node metastases				0.902
0	58	1.000
1	33	1.293	0.287-5.830
2	12	1.563	0.169-14.495
Lymphatic invasion				0.177
Negative	73	1.000
Positive	30	2.369	0.674-8.512
Vascular invasion				0.786
Negative	67	1.000
Positive	36	1.192	0.334-4.253