TABLE 2.

Cox regression analysis result: Hazard ratios and 95% confidence intervals of race, age, gender and cancer stage for (A) overall survival and (B) progression‐free survival

	Hazard ratio	95% CI	p
(A) Overall survival
Race
EA	1.00
AA	1.34	(0.71, 2.54)	0.359
Age (years)
<65	1.00
≥65	1.55	(0.91, 2.66)	0.110
Gender
Female	1.00
Male	1.48	(0.88, 2.47)	0.138
Cancer stage
Local (Stage 1)	1.00
Advanced (Stage 2–4)	2.29	(0.83, 6.32)	0.111

	Hazard ratio	95% CI	p
(B) Progression‐free survival
Race
EA	1.00
AA	1.75	(1.04, 2.95)	0.035*
Age (years)
<65	1.00
≥65	0.69	(0.43, 1.11)	0.130
Gender
Female	1.00
Male	1.82	(1.12, 2.95)	0.015**
Cancer stage
Local (Stage 1)	1.00
Advanced (Stage 2–4)	3.60	(1.31, 9.88)	0.013*

^* p < 0.05;

^** p < 0.01;

^*** p < 0.001.