Table 1. Univariate and multivariate analyses of clinicopathological factors affecting OS after laparoscopic gastrectomy for gastric cancer.

	Variables	Univariate analysis			Multivariate analysis with GPS			Multivariate analysis with mGPS			Multivariate analysis with HS-mGPS
		HR	95% CI	p value	HR	95% CI	p value	HR	95% CI	p value	HR	95% CI	p value
Age	< 70	1.000
	≥ 70	1.617	1.044–2.505	0.032	1.175	0.730–1.892	0.506	1.202	0.747–1.934	0.448	1.236	0.771–1.982	0.378
Gender	female	1.000
	Male	1.604	0.974–2.642	0.063
BMI	≥ 18.5	1.000
	< 18.5	1.905	1.075–3.375	0.027	1.723	0.950–3.126	0.073	1.942	1.077–3.504	0.027	1.923	1.070–3.459	0.029
Tumor size	< 5	1.000
	≥ 5	2.334	1.525–3.573	< 0.001	1.108	0.636–1.930	0.716	1.238	0.709–2.162	0.453	1.135	0.645–1.996	0.661
Diff.	well & mod	1.000
	Poor	1.656	1.087–2.522	0.019	1.459	0.922–2.308	0.107	1.427	0.901–2.261	0.130	1.426	0.904–2.251	0.127
pSstage	1 & 2	1.000
	3	4.000	2.612–6.125	< 0.001	2.817	1.638–4.844	<0.001	2.747	1.583–4.766	< 0.001	2.890	1.680–4.971	< 0.001
CEA	< 5.0	1.000
	≥ 5.0	2.350	1.528–3.612	< 0.001	1.942	1.239–3.044	0.004	1.958	1.248–3.070	< 0.001	1.963	1.253–3.076	0.003
GPS	0	1.000
	1	2.602	1.594–4.245	< 0.001	1.929	1.152–3.228	0.013
	2	5.240	2.722–10.089	< 0.001	1.887	0.837–4.254	0.126
mGPS	0	1.000						1.000
	1	2.681	1.163–6.183	0.021				2.299	0.960–5.505	0.062
	2	4.041	2.133–7.657	< 0.001				1.631	0.736–3.613	0.228
HS-mGPS	0	1.000									1.000
	1	1.568	0.860–2.861	0.142
	2	3.660	2.103–6.370	< 0.001							1.610	0.835–3.104	0.155
Complications	Absent	1.000
	Present	1.876	1.220–2.884	0.004	1.445	0.890–2.346	0.136	1.428	0.874–2.331	0.155	1.473	0.912–2.380	0.113