Major Electrocardiographic Abnormalities According to the Minnesota Coding System Among Brazilian Adults (From the ELSA-Brasil Cohort Study)

• Published in: The American journal of cardiology Vol. 119; no. 12; pp. 2081 - 2087
• Main Authors: Pinto-Filho, Marcelo M., MD, MSc, Brant, Luisa C.C., MD, PhD, Foppa, Murilo, MD, PhD, Garcia-Silva, Kaiser B, Mendes de Oliveira, Rackel Aguiar, MSc, de Jesus Mendes da Fonseca, Maria, PhD, Alvim, Sheila, PhD, Lotufo, Paulo A., MD, PhD, Mill, José G., MD, PhD, Barreto, Sandhi M., MD, PhD, Macfarlane, Peter W., DSc, FRCP, Ribeiro, Antonio L.P., MD, PhD
• Format: Journal Article
• Language: English
• Published: United States Elsevier Inc 15-06-2017; Elsevier Limited
• Subjects: Abnormalities; Adult; Adults; Age; Age Factors; Aged; Atria; Brazil - epidemiology; Cardiac arrhythmia; Cardiovascular; Cardiovascular disease; Cardiovascular diseases; Cardiovascular Diseases - diagnosis; Cardiovascular Diseases - epidemiology; Cardiovascular Diseases - physiopathology; Coding; Cohort analysis; Correlation analysis; Cross-Sectional Studies; EKG; Electrocardiography; Female; Geriatrics; Health risk assessment; Heart Conduction System - physiopathology; Humans; Incidence; Male; Men; Middle Aged; Mortality; Older people; Population studies; Prevalence; Race; Risk analysis; Risk Assessment - methods; Risk Factors; Sex Factors; Urban Population; Brazil; Electrocardiography; Brazil; Minnesota Code; Risk Factors
• ISSN: 0002-9149; 1879-1913
• DOI: 10.1016/j.amjcard.2017.03.043

Abstract The electrocardiogram (ECG) is a simple and useful clinical tool; nevertheless, few studies have evaluated the prevalence of electrocardiographic abnormalities in the Latin American population. This study aims to evaluate the major electrocardiographic abnormalities according to the Minnesota coding system in Brazilian adults, stratified by sex, age, race and cardiovascular risk factors. Data from 14424 adults (45.8% men, age 35-74 years) were obtained at baseline of the Brazilian Longitudinal Study of Adult Health (ELSA-Brasil), according to standardized protocol. The ECG were obtained with the Burdick Atria 6100 machine, stored on Pyramis System, automatically coded according to the Minnesota coding system by the Glasgow University software and then manually revised. Major abnormalities were more prevalent in men than women (11.3% and 7.9%, p<0.001). These differences were consistent through the different age groups, race and number of cardiovascular risk factors. Electrocardiographic major abnormalities were more prevalent in black participants for both men (black: 15.1%, mixed: 10.4%, white: 11.1%, p=0.001) and women (black: 10%, mixed: 7.6%, white: 7.2%, p=0.004). In conclusion, in this large sample of Brazilian adults, the prevalence of major electrocardiographic abnormalities was higher among men, the elderly, black and among people with more cardiovascular risk factors.