Table 1:

Baseline patient and tumor characteristics

	Total (n = 59)	HPV+ (n = 28)	HPV– (n = 31)	P Value
Age (yr)	66.3	66.2	67.4	.9
Sex
Male	43	19	24	.41
Female	16	9	7
Smoker	34/59	8/28	26/31	<.0001
Site	38, Palatine tonsil	20, Palatine tonsil	18, Palatine tonsil	.61
	17, Tongue base	7, Tongue base	10, Tongue base
	3, Soft palate	1, Soft palate	2, Soft palate
	1, Posterior wall		1, Posterior wall
TNM classification
T	T2 = 25	T2 = 16	T2 = 9	.08
	T3 = 2	T3 = 1	T3 = 1
	T4 = 32	T4 = 11	T4 = 21 (16, T4a; 5, T4b)
N	N0 = 14	N0 = 7	N0 = 7	.002
	N1 = 15	N1 = 13	N1 = 2
	N2 = 18	N2 = 6	N2 = 12 (8, N2b; 4, N2c)
	N3 = 12	N3 = 2	N3 = 10 (N3b = 10)
M	M0 = 57	M0 = 27	M0 = 30	.14
	M1 = 2	M1 = 1	M1 = 1

Note:—HPV+ indicates human papillomavirus–positive; HPV–, human papillomavirus–negative.