Table 1.

Patient Demographics

Characteristics	Rural (n = 400)	Urban (n = 401)	P Value
Clinics, n	10	4
Age, y	70	69.2	.15
Male	96%	97%	.45
White	99%	96%	< .01
Body mass index	30.5	30.3	.33
Coronary artery disease	35%	34%	.92
Congestive heart failure	15%	19%	.16
Cerebral vascular accident	9%	9%	.80
Obstructive sleep apnea	26%	33%	< .05
Diabetes mellitus	29%	32%	.29
Depression or posttraumatic stress disorder	37%	42%	.02
Addictive disorder	17%	24%	.02
Chronic kidney disease	14%	16%	.45