Table 4.

Cox regression of 83 patients with ESCC

Variable	B	SE (B)	Wald χ 2	P value	HR	HR 95 % CI
GPX2	1.741	0.455	14.630	<0.001	5.700	2.337~13.907
Histological grade	0.553	0.214	6.688	0.010	1.739	1.143~2.646