AFRICAN AMERICAN HAVE HIGHER PREVALENCE OF …
AFRICAN AMERICAN HAVE HIGHER PREVALENCE OF ABNORMAL ECG DOCUMENTED DURING SCREENING ECHOCARDIOGRAPHY
M.R. Movahed1,2, S. Bates3, A. Martinez2, S. Sattur2
1Southern Arizona VA Health Care System , Tucson, AZ, USA, 2University of Arizona Sarver Heart Center, Tucson, AZ, USA, 3Anthony Bates Foundation, Phoenix, AZ, USA
Background: African American has higher prevalence of abnormal ECG in a general population. The goal of this study was to evaluate the prevalence of ECG abnormalities reported during screening echocardiography based on race.
Method: The Anthony Bates Foundation has been performing screening echocardiography in high schools across the United States for the prevention of sudden death since 2001. A total of 633 participants were available with documented race and EKG.
Results: The age of the study population ranged between 6-75 years old. The prevalence of abnormal ECG in African American participant was 20.7% (12/58) vs. 6.6% (38/578) in other races, OR 3.70, CI 1.8-7.58, p140 and diastolic BP of > 90), African American race remained independently associated with abnormal ECG (OR 2.58, CI 1.12-5.97, p= 0.02). Furthermore, after excluding EKG findings of sinus bradycardia and early repolarization from abnormal EKG cohort, African American race showed persistent higher prevalence of abnormal EKG (16.7% vs. 7.3%, OR 2.52, CI 0.998-6.39, p=0.054).
Conclusion: The prevalence of abnormal ECG is higher in African American race independent of echocardiographic abnormalities or demographics. However, some of these abnormalities appear to be related to sinus bradycardia and early repolarization.
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