Table 2. Univariate Analysis of Overall and Disease-Free Survival.

	Overall Survival			Disease-Free Survival
	HR	95% CI	p-value	HR	95% CI	p-value
BMI*			< 0.001			<0.01
< 18.5 kg/m2	2.85	1.61, 5.05		2.05	1.17, 3.57
≥ 25 kg/m2	0.83	0.58, 1.19		0.84	0.61, 1.16
Age at diagnosis	1.01	0.99, 1.02	0.19	1.00	0.99, 1.02	0.45
Race†			0.84			0.8
Black	1.1	0.78, 1.54		1.11	0.82, 1.5
Other	1.3	0.30, 4.99		1.12	0.28, 4.54
Comorbidity			< 0.01			<0.01
1 vs 0	1.88	1.28, 2.73		1.6	1.14, 2.25
2 vs 0	0.95	0.58, 1.59		0.87	0.56, 1.36
3 vs 0	2.08	1.17, 3.70		1.59	0.94, 2.72
Smoker#			0.45			0.44
Current	1.25	0.88, 1.78		1.22	0.89, 1.68
Previous	1.18	0.58, 2.39		1.22	0.66, 2.25
Albumin ≥ 3.5 g/dl	0.56	0.38, 0.83	< 0.01	0.64	0.44, 0.94	0.02
Creatinine > 1.0 mg/dl	1.3	0.87, 1.95	0.19	1.31	0.91, 1.87	0.14
Hemoglobinº			0.05			0.19
8.0-9.9 mg/dl	1.15	0.62, 2.12		0.97	0.56, 1.70
10-12 mg/dl	1.11	0.66, 1.87		0.88	0.55, 1.40
> 12 mg/dl	0.67	0.39, 1.13		0.67	0.42, 1.06
Total Lymphocyte	0.7	0.50, 0.99	0.05	0.74	0.55, 1.01	0.05
Lymphocyte percentage ≥ 20%	0.56	0.39, 0.78	<0.01	0.63	0.47, 0.85	<0.01
XRTα	0.89	0.61, 1.32	0.58	0.85	0.61, 1.19	0.35

^*Reference category: Normal weight

^†Reference category: White

^#Reference category: Never

^ºReference category: < 8.0 mg/dl

^αXRT: conventional radiation; Reference category: IMRT (intensity modulated radiation therapy)