Table 1.

Odds of being included in the final cohort^a

Variable	OR of Inclusion	P
Age (yr)	1.01	<0.001
Hemoglobin (g/dl)	0.93	<0.001
BMI (kg/m2)	1.01	0.003
Estimated GFR (ml/min/1.73 m2)	1.00	0.1
Race
white	Reference
African American	1.00	1.0
Gender
male	Reference
female	1.02	0.522
Access type
AV fistula	0.73	<0.001
other access	Reference
Comorbid conditions
congestive heart failure	1.01	0.573
ASHD	0.98	0.489
CVA/TIA	1.07	0.048
other cardiac	1.04	0.210
peripheral vascular disease	1.02	0.622
diabetes	0.88	<0.001
COPD	1.15	<0.001
hypertension	0.97	0.281
smoker	1.20	0.002
cancer	0.91	0.014
addiction or drug dependence	1.34	0.024
inability to ambulate or transfer	0.98	0.597
amputation	0.94	0.382
institutionalized	1.19	<0.001
needs assistance with daily activities	1.09	0.029

^aASHD, atherosclerotic heart disease; COPD, chronic obstructive pulmonary disease; CVA/TIA, cerebrovascular accident/transient ischemic attack.