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ERICA: prevalence of metabolic syndrome in Brazilian adolescents

Overview of attention for article published in Revista de Saúde Pública, February 2016
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Title
ERICA: prevalence of metabolic syndrome in Brazilian adolescents
Published in
Revista de Saúde Pública, February 2016
DOI 10.1590/s01518-8787.2016050006701
Pubmed ID
Authors

Kuschnir, Maria Cristina C, Bloch, Katia Vergetti, Szklo, Moyses, Klein, Carlos Henrique, Barufaldi, Laura Augusta, Abreu, Gabriela de Azevedo, Schaan, Beatriz, Veiga, Gloria Valeria da, Silva, Thiago Luiz Nogueira da, Vasconcellos, Maurício T L de, ,

Abstract

OBJECTIVE To determine the prevalence of metabolic syndrome and its components in Brazilian adolescents. METHODS We evaluated 37,504 adolescents who were participants in the Study of Cardiovascular Risks in Adolescents (ERICA), a cross-sectional, school-based, national study. The adolescents, aged from 12 to 17 years, lived in cities with populations greater than 100,000 inhabitants. The sample was stratified and clustered into schools and classes. The criteria set out by the International Diabetes Federation were used to define metabolic syndrome. Prevalences of metabolic syndrome were estimated according to sex, age group, school type and nutritional status. RESULTS Of the 37,504 adolescents who were evaluated: 50.2% were female; 54.3% were aged from 15 to 17 years, and 73.3% were from public schools. The prevalence of metabolic syndrome was 2.6% (95%CI 2.3-2.9), slightly higher in males and in those aged from 15 to 17 years in most macro-regions. The prevalence was the highest in residents from the South macro-region, in the younger female adolescents and in the older male adolescents. The prevalence was higher in public schools (2.8% [95%CI 2.4-3.2]), when compared with private schools (1.9% [95%CI 1.4-2.4]) and higher in obese adolescents when compared with nonobese ones. The most common combinations of components, referring to 3/4 of combinations, were: enlarged waist circumference (WC), low HDL-cholesterol (HDL-c) and high blood pressure; followed by enlarged WC, low HDL-c and high triglycerides; and enlarged WC, low HDL-c, high triglycerides and blood pressure. Low HDL was the second most frequent component, but the highest prevalence of metabolic syndrome (26.8%) was observed in the presence of high triglycerides. CONCLUSIONS ERICA is the first Brazilian nation-wide study to present the prevalence of metabolic syndrome and describe the role of its components. Despite the prevalence of Metabolic Syndrome being low, the high prevalences of some components and participation of others in the syndrome composition shows the importance of early diagnosis of this changes, even if not grouped within the metabolic syndrome.

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Geographical breakdown

Country Count As %
Portugal 1 <1%
Unknown 174 99%

Demographic breakdown

Readers by professional status Count As %
Student > Bachelor 37 21%
Student > Master 36 21%
Student > Doctoral Student 13 7%
Student > Postgraduate 12 7%
Professor 10 6%
Other 29 17%
Unknown 38 22%
Readers by discipline Count As %
Medicine and Dentistry 40 23%
Nursing and Health Professions 34 19%
Agricultural and Biological Sciences 8 5%
Sports and Recreations 8 5%
Biochemistry, Genetics and Molecular Biology 6 3%
Other 21 12%
Unknown 58 33%