Major and minor electrocardiographic abnormalities and their association with underlying cardiovascular disease and risk factors in Hispanics/Latinos (from the Hispanic Community Health Study/Study of Latinos)

Pablo Denes, Daniel B Garside, Donald Lloyd-Jones, Natalia Gouskova, Elsayed Z Soliman, Robert Ostfeld, Zhu-Ming Zhang, Alvaro Camacho, Ronald Prineas, Leopoldo Raij, Martha L Daviglus
American Journal of Cardiology 2013 November 15, 112 (10): 1667-75
The association of electrocardiographic (ECG) abnormalities with cardiovascular disease and risk factors has been extensively studied in whites and African-Americans. Comparable data have not been reported in Hispanics/Latinos. The Hispanic Community Health Study/Study of Latinos (HCHS/SOL) is a multicenter, community-based, prospective cohort study of men and women of diverse backgrounds aged 18 to 74 years who self-identified as Hispanic/Latinos. Participants (n = 16,415) enrolled from March 2008 to June 2011. We describe the prevalence of minor and major ECG abnormalities and examined their cross-sectional associations with cardiovascular disease and risk factors. The Minnesota code criteria were used to define minor and major ECG abnormalities. Previous cardiovascular disease and risk factors were based on data obtained at baseline examination. Significant differences in prevalent ECG findings were found between men and women. Major ECG abnormalities were present in 9.2% (95% confidence interval 8.3 to 10.1) of men and 6.6% (95% confidence interval 5.8 to 7.3) of women (p <0.0001). The odds of having major ECG abnormalities significantly increased with age, presence of ≥3 cardiovascular risk factors, and prevalent cardiovascular disease, in both men and women. Significant differences in major ECG abnormalities were found among the varying groups; Puerto Ricans and Dominicans had more major abnormalities compared with Mexican men and women. In conclusion, in a large cohort of Hispanic/Latino men and women, prevalence of major abnormalities was low, yet strong associations of major ECG abnormalities with cardiovascular disease and risk factors were observed in both men and women.

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