Table 2.

Demographic/disease comparisons between willing and unwilling participants (studies 2 and 3).

Characteristic		Study 2						Study 3
		Total sample (n=14)	Willing to wear for 9 mo (n=10)	Unwilling (n=4)	P value		Total sample (n=14)		Willing to wear for 9 mo (n=12)		Unwilling (n=2)		P value
Age (years), mean (SD)		61.6 (11.5)	61.2 (12.3)	62.8 (11.0)	.83		62.4 (12.3)		61.0 (11.9)		70.5 (16.3)		.33
Race, n (%)						.55								.57
	African American	0 (0)	0 (0)	0 (0)			0 (0)		0 (0)		0 (0)
	American Indian or Alaskan Native	0 (0)	0 (0)	0 (0)			0 (0)		0 (0)		0 (0)
	Asian	0 (0)	0 (0)	0 (0)			2 (14)		2 (17)		0 (0)
	Native Hawaiian or Pacific Islander	0 (0)	0 (0)	0 (0)			0 (0)		0 (0)		0 (0)
	Non-Hispanic White	13 (92.9)	9 (90)	4 (100)			12 (86)		10 (83)		2 (100)
	More than one race	1 (7.1)	1 (10)	0 (0)			0 (0)		0 (0)		0 (0)
What is your ethnic background? n (%)						.85								.70
	Hispanic or Latino	3 (21.4)	2 (20)	1 (25)			1 (7)		1 (8)		0 (0)
	Not Hispanic or Latino	11 (78.6)	8 (80)	3 (75)			13 (93)		11 (92)		2 (100)
Occupation, n (%)						.52								.87
	Managerial/professional	2 (14)	2 (20)	0 (0)			7 (50)		6 (50)		1 (50)
	Retail, service, operator	9 (64)	6 (60)	3 (75)			6 (43)		5 (42)		1 (50)
	Student or unemployed	3 (21)	2 (20)	1 (25)			1 (7)		1 (8)		0 (0)
Marital status, n (%)						.37								.01
	Married/living with significant other	12 (86)	8 (80)	4 (100)			12 (86)		12 (100)		0 (0)
	Single/divorced/widowed/separated	2 (14)	2 (20)	0 (0)			2 (14)		1 (50)		1 (50)
Dysphagic status, n (%)		14			.27
	Dysphagic (DIGESTa>0)	7 (50)	5 (50)	2 (50)	>.99		7 (50)		6 (50)		1 (50)		>.99
	Not dysphagic (DIGEST=0)	7 (50)	5 (50)	2 (50)	N/Ab		7 (50)		6 (50)		1 (50)		N/A
Disease stage, n (%)						.14								.70
	I-II	1 (8)	0 (0)	1 (25)			1 (7)		1 (8)		0 (0)
	III-IV	12 (92)	9 (90)	3 (75)			13 (93)		11 (92)		2 (100)

^aDIGEST: Dynamic Imaging Grade of Swallowing Toxicity.

^bN/A: not applicable.