Table 2.

Univariable and multivariable analysis of clinicopathologic factors associated with overall survival.

Characteristic	Univariate analysis		Multivariate analysis
	5-yr (%)	p-value	OR	95% CI	p-value
Type of gastrectomy		0.002			0.067
Distal	60.8		Ref
Total/proximal	42.5		1.882	0.980–3.613
Tumour size, cm		0.001			0.666
≤4.0	60.2		Ref
>4.0	41.2		0.913	0.603–1.381
Tumour location		<0.001			0.026
Lower third	62.2		Ref
Middle third	48.8		0.780	0.408–1.493	0.453
Upper third	44.1		0.915	0.437–1.917	0.814
More than one part	0.00		2.916	1.049–8.104	0.040
Lauren type		<0.001			0.812
Intestinal	62.0		Ref
Diffuse	38.2		0.910	0.446–1.855	0.795
Mixed/unknown	48.5		0.801	0.384–1.671	0.554
Differentiation type		<0.001			0.076
Differentiated	67.7		Ref
Undifferentiated/unknown	37.2		1.803	0.940–3.458
Vascular invasion		<0.001			0.416
Yes	37.0		Ref
No	65.3		1.215	0.760–1.943
Perineural invasion		<0.001			0.843
Yes	39.8		Ref
No	63.8		0.956	0.614–1.489
Treatment effect		0.020			0.354
0–49%	46.4		Ref
50–89%	56.9		1.085	0.665–1.769	0.744
90–100%	61.7		1.899	0.793–4.550	0.150
AJCC ypTNM stage		<0.001			0.127
I	82.1		Ref
II	62.9		1.487	0.480–4.605	0.491
III	23.9		2.678	0.740–9.693	0.133
Modified ypTNM stage		<0.001			0.004
I	86.5		Ref
II	74.1		2.349	0.420–13.154	0.331
IIIA	45.3		3.506	0.542–22.682	0.188
IIIB	9.7		8.585	1.224–60.222	0.031