Table 2.

Adjusted prevalence^* (95% CI) of atrial fibrillation detected by: 1) aECG, study visit electrocardiogram or prior hospitalization, 2) ambulatory electrocardiography (aECG) or prior study visit electrocardiogram, and for asymptomatic and paroxysmal atrial fibrillation for those with atrial fibrillation detected by aECG, stratified by race and by race and gender groups, 2014–2016.

	AF prevalence on Holter/ECG/Hospitalization % (95% CI)	AF prevalence on Holter or ECG % (95% CI)	Asymptomatic AF prevalence % (95% CI)	Prevalence of Paroxysmal AF** % (95% CI)
Race Stratified
White	11.0 (8.1,14.9)	5.0 (3.3,7.6)	4.0 (2.5,6.4)	1.6 (0.7,3.5)
African American	5.8 (3.9,8.5)	2.7 (1.5,4.7)	2.4 (1.3,4.4)	1.4 (0.6,3.2)
Race and Gender Stratified
White Women	9.4 (5.9,14.6)	2.8 (1.3,5.9)	2.5 (1.1,5.5)	1.3 (0.4,4.1)
White Men	12.7 (8.7,18.4)	7.8 (4.8,12.3)	5.9 (3.4,10)	1.9 (0.7,5.2)
African American Women	6 (3.8,9.5)	2.6 (1.3,4.9)	2.1 (1,4.3)	1.1 (0.4,3.3)
African American Men	4.7 (2.4,9.1)	2.3 (0.9,5.9)	2.4 (0.9,6.2)	1.6 (0.5,5.1)

^*Prevalence (%) adjusted for age, gender, and prevalent coronary heart disease for estimates stratified by race; prevalence (%) adjusted for age and prevalent coronary heart disease for estimates stratified by race and gender. Weighted for sampling design and non-response.

^**Paroxysmal AF was defined by time in AF <99%; time in AF does not include 0%.