. Author manuscript; available in PMC: 2009 Oct 28.

Published in final edited form as: Int J Radiat Oncol Biol Phys. 2009 Jun 1;74(2):553–561. doi: 10.1016/j.ijrobp.2009.02.015

Table 6.

Five-year overall survival by different biomarker categories, stratified by HPV status

Marker	Staining intensity	All patients	p value	HPV neg-weak	p value	HPV strong	p value
CAIX	Neg-weak	61% (n = 68)	0.007	42% (n = 37)	0.09	79% (n = 31)	0.06
	Strong	31% (n = 13)		22% (n = 9)		50% (n = 4)
EGFR	Neg-weak	72% (n = 48)	<0.0001	52% (n = 18)	0.03	83% (n = 30)	0.05
	Strong	19% (n = 29)		17% (n = 24)		30% (n = 5)
CD3	Neg-weak	34% (n = 39)	0.005	22% (n = 27)	0.04	64% (n = 12)	0.97
	Strong	70% (n = 40)		60% (n = 16)		75% (n = 24)

Abbreviations: HPV = human papillomavirus; neg = negative.