Background
Hispanics/Latinos represent the largest ethnic minority group in the United States.
Atrial fibrillation (AF) is the most common cardiac arrhythmia in the United States.
Objective
The purpose of this study was to provide data on the prevalence of AF and its correlates
in a representative Hispanic/Latino population–based sample inclusive of all background
groups.
Methods
Hispanic Community Health Study/Study of Latinos participants (n=16,415; 60% women;
59% age >45 years) were enrolled between March 2008 and June 2011, representing individuals
of Cuban, Dominican, Mexican, Puerto Rican, Central American, and South American heritage.
AF was defined by the 12-lead electrocardiogram and/or participant self-report of
a physician diagnosis. Hispanic background–specific AF prevalence rates were determined.
Weighted sequential logistic regression models were adjusted for demographic factors
(age and sex) and clinical variables (diabetes, hypertension, body mass index, tobacco
use, and estimated glomerular filtration rate).
Results
The overall weighted prevalence of AF was 1.0% (n=162), with the highest prevalence
in Hispanics of Dominican and Puerto Rican backgrounds (1.9% and 2.5% respectively)
and the lowest in those of Mexican background (0.3%). Diabetes, hypertension, renal
disease, left ventricular hypertrophy determined by the electrocardiogram, alcohol
use, and English language preference (greater acculturation) (P < .01 for all) were significantly associated with higher AF prevalence. Multivariate
analysis by Hispanic/Latino background group showed that Hispanics of Dominican and
Puerto Rican backgrounds were at a 3- to 6-fold higher risk of AF than their Mexican
counterparts.
Conclusion
In a diverse representative population of Hispanics/Latinos, overall AF prevalence
was low and varied significantly across Hispanic/Latino background groups independent
of clinical or demographic factors.
Keywords
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Article info
Footnotes
The Hispanic Community Health Study/Study of Latinos was supported by contracts from the National Heart, Lung, and Blood Institute to the University of North Carolina (grant no. N01-HC65233), the University of Miami (grant no. N01-HC65234), the Albert Einstein College of Medicine (grant no. N01-HC65235), Northwestern University (grant no. N01-HC65236), and San Diego State University (grant no. N01-HC65237).
This study was partially supported by the National Institutes of Health/National Heart, Lung, and Blood Institute (grant nos. R01 HL104199 [principal investigator: Dr Rodriguez] and T32 HL125294 [principal investigator: Dr Daviglus]). Additional funding was provided by the American Heart Association (grant no. 16EIA26410001, to Dr Alonso).
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