Table 2.

Participant Characteristics

	Included in Analysis (n=38)	Withdrew from study before completing baseline study documents (n=7)
Age
mean (SD)	63.3 (10.0)	67.4 (7.8)	p = 0.31
median,	65	72.6
min, max	41, 81	58, 77
Gender	n (%)
Male	29 (76.3)	5 (71.4)	p = 0.78
Female	9 (23.7)	2 (28.6)
Marital Status
Married	24 (63.2)	3 (42.9)	p = 0.46
Single	8 (21.1)	3 (42.9)
Widowed	6 (15.8)	1 (14.3)
Recurrence Number
First Recurrence	30 (78.9)	4 (57.1)	p = 0.34
> 1 Recurrence	8 (21.1)	3 (42.9)
Primary Tumor Site
Pharynx	11 (28.9)	0 (0.0)	p < 0.01
Oral Cavity	9 (23.7)	0 (0.0)
Larynx	5 (13.2)	5 (71.4)
Salivary Gland	5 (13.2)	0 (0.0)
Nasal Cavity/Paranasal Sinuses	4 (10.5)	2 (28.6)
Other/Unknown	4 (10.5)	0
Primary Cancer Stage
X/Unknown	25 (65.8)	6 (85.7)	p = 0.84
I	3 (7.9)	0 (0.0)
II	2 (5.3)	0 (0.0)
III	3 (7.9)	0 (0.0)
IVa	4 (10.5)	1 (14.3)
IVb	1 (2.6)	0 (0.0)
Treatment for Primary Disease
Concurrent Chemotherapy and Radiation
Yes	21 (55.3)	4 (57.1)	p = 0.93
No	17 (44.7)	3 (42.9)
Induction Chemotherapy
Yes	11 (28.9)	2 (28.6)	p = 0.99
No	27 (71.1)	5 (71.4)
Surgery
Yes	19 (50.0)	3 (42.9)	p= 0.73
No	19 (50.0)	4 (57.1)
Radiation Only
Yes	8 (21.1)	1 (14.3)	p= 0.68
No	30 (78.9)	6 (85.7)