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Journal of Tropical Pediatrics Advance Access published online on September 15, 2009
Journal of Tropical Pediatrics, doi:10.1093/tropej/fmp085
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© The Author [2009]. Published by Oxford University Press. All rights reserved. For Permissions, please email: journals.permissions@oxfordjournals.org

The Accuracy of National Body Fat Cutoff Levels in the Prediction of Elevated Blood Pressure among Brazilian Male Adolescents

Romulo A. Fernandesa, Diego G. D. Christofaroc, Camila Buonanid, Lorrane R. de Araújod, Yasser K. Kassaba, Jefferson R. Cardosob, Ismael F. Freitas, Jrd and Dalmo R. L. Machadod

aInstitute of Bioscience, Department of Physical Education, Universidade Estadual Paulista, Rio Claro, Sao Paulo, Brazil, bDepartment of Physical Therapy, Universidade Estadual de Londrina, Londrina State University, Londrina, Parana, Brazil cDepartment of Collective Health, Universidade Estadual de Londrina, Londrina, Parana, Brazil and dSciences and Technology Center, Department of Physical Education, Universidade Estadual Paulista, Presidente Prudente, Sao Paulo, Brazil

Correspondence: Romulo A. Fernandes, Department of Physical Education, Institute of Biosciences, Sao Paulo State University, AV 24A, 1515. 13506-900 Rio Claro (SP), Brazil. Tel.: +5519 35264324; Fax: +55 19 35264321. E-mail: <romulo_ef{at}yahoo.com.br>

Abstract


  Abstract

Objective: To assess viability of the development of percentage body fat cutoffs based on blood pressure values in Brazilian adolescents.

Methods: A cross-sectional study was conducted with a sample of 358 male subjects from 8 to 18 years old. Blood pressure was measured by the oscilometric method, and body composition was measured by dual-energy X-ray absorptiometry (DXA).

Results: For the identification of elevated blood pressure, these nationally developed body fat cutoffs presented relative accuracy. The cutoffs were significantly associated with elevated blood pressure [odds ratio = 5.91 (95% confidence interval: 3.54–9.86)].

Conclusions: Development of national body fat cutoffs is viable, because presence of high accuracy is an indication of elevated blood pressure.

Key Words: obesity • adolescent • receiver operating characteristic curve • dual-energy X-ray absorptiometry • body fat percentage


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