Table II.

Univariate analysis of risk factors for all strokes/deaths^a

Effect	Hazard ratio	95% Wald confidence limits		P valueb
Cr level ≥3 mg/dL	5.9	2.1	16	.0006
GFR <30 mL/min/1.73 m2	3.2	1.6	6.3	.0011
Symptomatic	1.3	0.8	1.9	.2767
Hypertension	1.4	0.8	2.5	.2718
Renal insufficiency	2.3	1.4	3.7	.0005
Stroke	1.6	0.95	2.6	.077
Diabetes mellitus	1.5	1.0	2.3	.0382
Coronary artery disease	1.3	0.8	1.9	.2783
Hypercholesterolemia	0.8	0.6	1.3	.4368
Chronic obstructive pulmonary disease	1.2	0.7	1.9	.5068
Morbid obesity	1.0	0.2	4.1	.9959
Smoker	0.9	0.6	1.3	.5321

Cr, Creatine; GFR, glomerular filtration rate.

^aCr level, 867 patients; GFR, 854 patients.

^bBoldface entries indicate statistical significance.