Table 2.

Factors Associated with Reactive Hyperemia Index (Unadjusted Analysis)

	Reactive Hyperemia Index
	Β* (95% CI)	p-value
Age, years	−0.001 (−0.007, 0.005)	0.72
African American	−0.05 (−0.17, 0.06)	0.38
Female	0.005 (−0.12, 0.13)	0.94
Income below Poverty (<$20K/year)	−0.14 (−0.28,0.006)	0.060
Body Mass Index	−0.01 (−0.02, −0.001)	0.029
Ever Smoking	0.002 (−0.15, 0.15)	0.98
Diabetes	−0.11 (−0.22, 0.003)	0.055
Hypertension	0.03 (−0.09, 0.16)	0.62
Dyslipidemia	−0.04 (−0.18, 0.10)	0.55
Prior Myocardial Infarction	0.07 (−0.04, 0.18)	0.23
Heart Failure History	−0.03 (−0.16, 0.09)	0.61
Prior Revascularization	0.13 (0.01, 0.26)	0.038
Aspirin	0.14 (−0.01, 0.28)	0.068
Clopidogrel	0.11 (−0.004, 0.22)	0.059
Beta-Blocker	−0.04 (−0.16, 0.09)	0.55
ACEI/ARB	−0.003 (−0.11, 0.10)	0.95
Statins	0.16 (0.002, 0.32)	0.048
Gensini Score	0.0004 (−0.001, 0.001)	0.41

Abbreviations: ACEI = Angiotensin-Converting Enzyme Inhibitor; ARB=Angiotensin Receptor Blocker; CI = Confidence Interval.

^*Beta-coefficient in bivariate analysis comparing each factor above to RHI expressed in standard deviation units