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ERICA : prevalences of hypertension and obesity in Brazilian adolescents

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ERICA : prevalences of hypertension and obesity in Brazilian adolescents

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Título ERICA : prevalences of hypertension and obesity in Brazilian adolescents
Outro título ERICA : prevalências de hipertensão arterial e obesidade em adolescentes brasileiros
Autor Bloch, Katia Vergetti
Klein, Carlos Henrique
Szklo, Moyses
Kuschnir, Maria Cristina Caetano
Abreu, Gabriela de Azevedo
Barufaldi, Laura Augusta
Veiga, Gloria Valeria da
Schaan, Beatriz D'Agord
Silva, Thiago Luiz Nogueira da
Vasconcellos, Mauricio Teixeira Leite de
Abstract 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 95th 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.
Contido em Revista de saúde pública. São Paulo. Vol. 50, supl. 1 (Fev. 2016), [12 p.]
Assunto Adolescente
Epidemiologia
Hipertensão
Obesidade
[en] Adolescent
[en] Cross-Sectional studies
[en] Hypertension, epidemiology
[en] Obesity, epidemiology
Origem Nacional
Tipo Artigo de periódico
URI http://hdl.handle.net/10183/147111
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