Table 2.

Association of race and strokes that precede the diagnosis of AF

Ischemic Strokes*
Race	N	# ischemic stroke	Unadjusted OR (95% Cl)	Adjusted† OR (95% Cl)
White	2050	137 (6.7%)	1.00 (ref)	1.00 (ref)
Black	1119	117 (10.4%)	1.62 (1.25, 2.10)	1.37 (1.03, 1.81)
Hemorrhagic Strokes*
Race	N	# hemorrhagic stroke	Unadjusted OR (95% CI)	Adjusted† OR (95% CI)
White	1927	14 (0.73%)	1.00 (ref)	1.00 (ref)
Black	1013	11 (1.1%)	1.49 (0.68, 3.30)	1.58 (0.68, 3.70)

^*For these analyses, we used the total number of incident AF cases and excluded those who had a stroke after the diagnosis of AF. For the ischemic stroke analysis, we excluded those who had a hemorrhagic stroke. Similarly, for the hemorrhagic stroke analysis, we excluded those participants who had an ischemic stroke event.

^†Adjusted for age, sex, smoking, hypertension, diabetes, obesity, heart failure, coronary heart disease, chronic kidney disease, and vascular disease