Table 4.

Stepwise Models for Predictors of Cardiovascular Events

	Odds Ratio	95.0% CI	P
Model 1
Low hyperemic flow velocity	2.6	1.2–5.9	0.019
Age (per decade)	1.9	1.4–2.5	<0.001
More invasive surgery	3.8	1.4–11	0.01
Model 2
Low flow-mediated dilation	4.1	1.8–9.7	0.001
Age (per decade)	1.8	1.3–2.3	<0.001
More invasive surgery	4.3	1.5–12	0.005
Model 3
Low hyperemic flow velocity	2.7	1.2–5.9	0.018
Low flow-mediated dilation	4.2	1.8–9.8	0.001
Age (per decade)	1.8	1.3–2.4	<0.001
More invasive surgery	3.9	1.4–11	0.01

Candidate variables for all models included age, gender, serum creatinine, more invasive (noncarotid) surgery, diabetes mellitus, hypertension, and current cigarette smoking. Model 1 also included hyperemic flow, Model 2 also included flow-mediated dilation, and Model 3 also included both vascular function variables.