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ERICA: prevalences of hypertension and obesity in Brazilian adolescents

OBJECTIVE: To estimate the prevalence of arterial hypertension and obesity and the population attributable fraction of hypertension that is due to obesity in Brazilian adolescents. METHODS: Data from participants in the Brazilian Study of Cardiovascular Risks in Adolescents (ERICA), which was the fi...

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Autores principales: Bloch, Katia Vergetti, Klein, Carlos Henrique, Szklo, Moyses, Kuschnir, Maria Cristina C, Abreu, Gabriela de Azevedo, Barufaldi, Laura Augusta, da Veiga, Gloria Valeria, Schaan, Beatriz, da Silva, Thiago Luiz Nogueira, de Vasconcellos, Maurício Teixeira Leite
Formato: Online Artículo Texto
Lenguaje:English
Publicado: Faculdade de Saúde Pública da Universidade de São Paulo 2016
Materias:
Acceso en línea:https://www.ncbi.nlm.nih.gov/pmc/articles/PMC4767032/
https://www.ncbi.nlm.nih.gov/pubmed/26910553
http://dx.doi.org/10.1590/S01518-8787.2016050006685
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author Bloch, Katia Vergetti
Klein, Carlos Henrique
Szklo, Moyses
Kuschnir, Maria Cristina C
Abreu, Gabriela de Azevedo
Barufaldi, Laura Augusta
da Veiga, Gloria Valeria
Schaan, Beatriz
da Silva, Thiago Luiz Nogueira
de Vasconcellos, Maurício Teixeira Leite
author_facet Bloch, Katia Vergetti
Klein, Carlos Henrique
Szklo, Moyses
Kuschnir, Maria Cristina C
Abreu, Gabriela de Azevedo
Barufaldi, Laura Augusta
da Veiga, Gloria Valeria
Schaan, Beatriz
da Silva, Thiago Luiz Nogueira
de Vasconcellos, Maurício Teixeira Leite
author_sort Bloch, Katia Vergetti
collection PubMed
description OBJECTIVE: To estimate the prevalence of arterial hypertension and obesity and the population attributable fraction of hypertension that is due to obesity in Brazilian adolescents. METHODS: Data from participants in the Brazilian Study of Cardiovascular Risks in Adolescents (ERICA), which was the first national school-based, cross-section study performed in Brazil were evaluated. The sample was divided into 32 geographical strata and clusters from 32 schools and classes, with regional and national representation. Obesity was classified using the body mass index according to age and sex. Arterial hypertension was defined when the average systolic or diastolic blood pressure was greater than or equal to the 95(th) percentile of the reference curve. Prevalences and 95% confidence intervals (95%CI) of arterial hypertension and obesity, both on a national basis and in the macro-regions of Brazil, were estimated by sex and age group, as were the fractions of hypertension attributable to obesity in the population. RESULTS: We evaluated 73,399 students, 55.4% female, with an average age of 14.7 years (SD = 1.6). The prevalence of hypertension was 9.6% (95%CI 9.0-10.3); with the lowest being in the North, 8.4% (95%CI 7.7-9.2) and Northeast regions, 8.4% (95%CI 7.6-9.2), and the highest being in the South, 12.5% (95%CI 11.0-14.2). The prevalence of obesity was 8.4% (95%CI 7.9-8.9), which was lower in the North region and higher in the South region. The prevalences of arterial hypertension and obesity were higher in males. Obese adolescents presented a higher prevalence of hypertension, 28.4% (95%CI 25.5-31.2), than overweight adolescents, 15.4% (95%CI 17.0-13.8), or eutrophic adolescents, 6.3% (95%CI 5.6-7.0). The fraction of hypertension attributable to obesity was 17.8%. CONCLUSIONS: ERICA was the first nationally representative Brazilian study providing prevalence estimates of hypertension in adolescents. Regional and sex differences were observed. The study indicates that the control of obesity would lower the prevalence of hypertension among Brazilian adolescents by 1/5.
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spelling pubmed-47670322016-03-14 ERICA: prevalences of hypertension and obesity in Brazilian adolescents Bloch, Katia Vergetti Klein, Carlos Henrique Szklo, Moyses Kuschnir, Maria Cristina C Abreu, Gabriela de Azevedo Barufaldi, Laura Augusta da Veiga, Gloria Valeria Schaan, Beatriz da Silva, Thiago Luiz Nogueira de Vasconcellos, Maurício Teixeira Leite Rev Saude Publica Original Article OBJECTIVE: To estimate the prevalence of arterial hypertension and obesity and the population attributable fraction of hypertension that is due to obesity in Brazilian adolescents. METHODS: Data from participants in the Brazilian Study of Cardiovascular Risks in Adolescents (ERICA), which was the first national school-based, cross-section study performed in Brazil were evaluated. The sample was divided into 32 geographical strata and clusters from 32 schools and classes, with regional and national representation. Obesity was classified using the body mass index according to age and sex. Arterial hypertension was defined when the average systolic or diastolic blood pressure was greater than or equal to the 95(th) percentile of the reference curve. Prevalences and 95% confidence intervals (95%CI) of arterial hypertension and obesity, both on a national basis and in the macro-regions of Brazil, were estimated by sex and age group, as were the fractions of hypertension attributable to obesity in the population. RESULTS: We evaluated 73,399 students, 55.4% female, with an average age of 14.7 years (SD = 1.6). The prevalence of hypertension was 9.6% (95%CI 9.0-10.3); with the lowest being in the North, 8.4% (95%CI 7.7-9.2) and Northeast regions, 8.4% (95%CI 7.6-9.2), and the highest being in the South, 12.5% (95%CI 11.0-14.2). The prevalence of obesity was 8.4% (95%CI 7.9-8.9), which was lower in the North region and higher in the South region. The prevalences of arterial hypertension and obesity were higher in males. Obese adolescents presented a higher prevalence of hypertension, 28.4% (95%CI 25.5-31.2), than overweight adolescents, 15.4% (95%CI 17.0-13.8), or eutrophic adolescents, 6.3% (95%CI 5.6-7.0). The fraction of hypertension attributable to obesity was 17.8%. CONCLUSIONS: ERICA was the first nationally representative Brazilian study providing prevalence estimates of hypertension in adolescents. Regional and sex differences were observed. The study indicates that the control of obesity would lower the prevalence of hypertension among Brazilian adolescents by 1/5. Faculdade de Saúde Pública da Universidade de São Paulo 2016-02-02 /pmc/articles/PMC4767032/ /pubmed/26910553 http://dx.doi.org/10.1590/S01518-8787.2016050006685 Text en http://creativecommons.org/licenses/by/4.0/ This is an Open Access article distributed under the terms of the Creative Commons Attribution License, which permits unrestricted use, distribution, and reproduction in any medium, provided the original work is properly cited.
spellingShingle Original Article
Bloch, Katia Vergetti
Klein, Carlos Henrique
Szklo, Moyses
Kuschnir, Maria Cristina C
Abreu, Gabriela de Azevedo
Barufaldi, Laura Augusta
da Veiga, Gloria Valeria
Schaan, Beatriz
da Silva, Thiago Luiz Nogueira
de Vasconcellos, Maurício Teixeira Leite
ERICA: prevalences of hypertension and obesity in Brazilian adolescents
title ERICA: prevalences of hypertension and obesity in Brazilian adolescents
title_full ERICA: prevalences of hypertension and obesity in Brazilian adolescents
title_fullStr ERICA: prevalences of hypertension and obesity in Brazilian adolescents
title_full_unstemmed ERICA: prevalences of hypertension and obesity in Brazilian adolescents
title_short ERICA: prevalences of hypertension and obesity in Brazilian adolescents
title_sort erica: prevalences of hypertension and obesity in brazilian adolescents
topic Original Article
url https://www.ncbi.nlm.nih.gov/pmc/articles/PMC4767032/
https://www.ncbi.nlm.nih.gov/pubmed/26910553
http://dx.doi.org/10.1590/S01518-8787.2016050006685
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