Table VI.

Multivariate Cox regression analysis.

Variable	Wald	OR	95.0% CI	P-value
Age	0.595	1.290	0.675–2.465	0.440
Gender	0.014	1.037	0.570–1.886	0.904
TNM stage	0.004	0.952	0.220–4.128	0.948
Lymph node metastasis	0.112	1.155	0.497–2.687	0.737
Distant metastasis	4.598	2.609	0.971–5.974	0.041
Histological differentiation	0.016	0.922	0.262–3.242	0.899
TAP-1 expression	0.005	1.071	0.168–6.819	0.942
TAP-2 expression	0.412	1.925	0.260–14.250	0.521
HLA-I expression	4.557	2.586	0.389–8.186	0.042

OR, odds ratio; CI, confidence interval; TAP, transporters associated with antigen processing; HLA, human leukocyte antigen.