Insulin resistance and exercise tolerance in heart failure patients: linkage to coronary flow reserve and peripheral vascular function

Table 4 Univariate and multivariable linear regression with VO ₂ peak as the dependent factor

	Univariate beta	p	Multiple beta	p
Age	−0.23	0.02	−0.18	0.04
Insulin sensitivity (SC)	2.86	0.007	1.75	0.09
CFR (SC)	3.07	0.002	1.98	0.05
RHI (SC)	−2.01	0.16		Ns
Augmentation index (SC)	−2.21	0.04		Ns
LVEF	0.25	0.15		Ns

SC: Standardized coefficient, CFR Coronary flow reserve, RHI: Reactive hyperemia index, LVEF: Left ventricular ejection fraction.

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