Table 3.

Results of the univariate Cox regression model for OS^a (n = 42)

	n	HR (95% CI)	P value
Patient characteristics
Gender
Male	31	1.0	0.44
Female	9	0.7 (0.3–1.7)
Race
White	30	1.0	0.77
Black	6	0.9 (0.3–2.3)
Race
White	30	1.0	0.98
Other	10	1.0 (0.5–2.2)
Age	40	1.0 (0.9–1.0)	0.28
Clinical measures
Primary tumor site
Non-OP	24	1.0	0.74
OP	16	0.9 (0.4–1.8)
Polymorphism
FF	14	1.0	0.82
FV or VV	21	0.9 (0.4–1.9)
Surgery (in addition to treatment)
No surgery	14	1.0	0.86
Surgery	25	0.9 (0.5–1.9)
P16 staining
Negative	7	1.0	0.09
Positive	6	0.3 (0.1–1.2)
ADCC response
No Response	17	1.0	0.85
Response	8	1.1 (0.4–2.9)

Abbreviation: OP, oropharynx.

^aOS is defined from the date of start of treatment till the date of death or censored at the date last known alive.