Table 6. Independent prognostic factors for predicting OS and PFS by multivariate analysis using Cox model.

Factors	PFS					OS
	Wald	HR	95% CI	P value		Wald	HR	95% CI	P value
Disease status	0.201	1.257	0.463–3.410	0.654		3.254	2.639	0.920–7.574	0.071
CA199 ≥80 U/mL	7.585	3.532	1.439–8.669	0.006		3.182	2.310	0.921–5.797	0.074
CA72.4 ≥20 U/mL	1.961	1.723	0.805–3.692	0.161		11.055	4.840	1.910–12.262	0.001
Age	0.141	0.717	0.127–4.066	0.707		1.164	2.696	0.445–16.331	0.281
Gender	0.000	1.010	0.389–2.624	0.984		0.260	1.323	0.451–3.886	0.610
Lauren classification	0.953	2.242	0.443–11.334	0.329		0.021	0.879	0.151–5.128	0.886
Tumor differentiation	0.014	0.934	0.294–2.968	0.907		3.310	3.020	0.918–9.930	0.069
Chemotherapy regimen	0.140	1.236	0.408–3.747	0.708		0.039	0.877	0.237–3.243	0.844
Palliative radiotherapy	3.372	0.425	0.170–1.059	0.066		1.815	0.507	0.189–1.362	0.178
Liver metastases	2.629	2.430	0.831–7.108	0.105		0.178	0.804	0.293–2.209	0.673
Lung metastases	0.124	0.809	0.250–2.620	0.724		0.065	0.859	0.266–2.778	0.799
Peritoneum metastases	0.133	1.191	0.466–3.047	0.715		0.031	0.892	0.252–3.154	0.859