Table 3.

Multivariate Cox proportional hazards model for OS and DFS

	DFS			OS
Variable	HR	95 % CI	P-value	HR	95 % CI	P-value
DPPA4 expression	2.826	1.920–4.159	<0.001*	2.664	1.721–4.123	<0.001*
T stage	1.692	1.128–2.538	0.011*	3.989	1.754–9.073	0.001*
N stage	3.709	2.053–6.699	<0.001*	3.313	1.773–6.193	<0.001*
M stage	4.352	1.303–14.542	0.017*	8.000	2.393–26.745	0.001*
Ki-67 expression	1.226	0.790–1.904	0.363	1.570	0.846–2.914	0.153

*P < 0.05 indicates a significant association among the variables