Table 1.

Characteristics of ischemic stroke cases and controls, 1989 – 2005.

Characteristic	Ischemic stroke cases (n = 1,914)	Controls (n = 9,874)	p value*
Age (years), mean (sd)	69.7 (8.5)	65.9 (9.7)	<0.001
Women, %	67.0	53.7	<0.001
Treated hypertension, %	75.8	73.6	0.051
Systolic blood pressure (mmHg), mean (sd)	145.4 (22.7)	138.6 (19.4)	<0.001
Coronary heart disease, %	31.3	19.6	<0.001
Chronic congestive heart failure, %	12.7	4.2	<0.001
Atrial fibrillation
Current, %	14.1	4.4	<0.001
Past, %	5.2	2.1	<0.001
Peripheral vascular disease, %	9.3	4.1	<0.001
Carotid endarterectomy, %	1.8	0.9	<0.001
Prosthetic heart valves, %	1.3	0.5	<0.001
Diabetes, %	29.2	11.8	<0.001
Current smoker, %	15.3	11.9	<0.001
Current estrogen use (women), %	17.8	20.0	0.068

^*T tests for differences of means; chi square tests for differences of proportions.