Table 1.

Demographic and Clinical Characteristics of Participants

	By sickle cell trait status:			By history of ischemic stroke:
Characteristic	SCT (n=55)	HbAA (n=620)	p-value*	Case (n=342)	Control (n=333)	p-value*
Sickle Cell Trait, n (%)	--	--	--	25 (7.3%)	30 (9.1%)	0.42
Mean Age (SD)	39.4 (8.0)	41.0 (6.8)	0.1	41.9 (6.9)	39.9 (6.8)	0.0001
Male Sex, n (%)	31 (56.4%)	340 (54.8%)	0.83	188 (55.0%)	183 (55.0%)	0.997
Hypertension, n (%)	20 (36.4%)	262 (42.3%)	0.4	197 (57.6%)	85 (25.5%)	<0.0001
Diabetes Mellitus, n (%)	7 (12.7%)	101 (16.3%)	0.49	79 (23.1%)	29 (8.7%)	<0.0001
Current Smoker, n (%)	19 (34.6%)	264 (42.6%)	0.25	161 (47.1%)	122 (36.6%)	0.006
Myocardial Infarction, n (%)	0 (0%)	23 (3.7%)	0.15	20 (5.9%)	3 (0.9%)	0.0004

^*p-values by chi-square