Table 3.

Independent predictors of new DWI-MRI lesions following CAS in 115 patients.

Parameter	p	Incidence Risk Ratio (IRR)	95% Confidence interval for IRR
Lower	Upper
Left-sided stenosis	.03	1.59	1.04	2.44
Age (per 10-year increase)	< .01	2.10	1.61	2.74
Male	< .01	2.83	1.72	4.67
Hypertension	< .01	2.04	1.25	3.33
No diagnosis of cardiac failure	.03	6.58	1.23	35.07