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International Journal of Endocrinology
Volume 2015 (2015), Article ID 158758, 8 pages
http://dx.doi.org/10.1155/2015/158758
Research Article

Insulin Resistance of Normal Weight Central Obese Adolescents in Korea Stratified by Waist to Height Ratio: Results from the Korea National Health and Nutrition Examination Surveys 2008–2010

1Department of Pediatrics, College of Medicine, The Catholic University of Korea, Seoul 137-701, Republic of Korea
2Department of Biostatistics, College of Medicine, The Catholic University of Korea, Seoul 137-701, Republic of Korea

Received 13 May 2015; Accepted 8 July 2015

Academic Editor: Marek Bolanowski

Copyright © 2015 Won Kyoung Cho et al. This is an open access article distributed under the Creative Commons Attribution License, which permits unrestricted use, distribution, and reproduction in any medium, provided the original work is properly cited.

Abstract

Background. To evaluate insulin resistance of normal weight central obese 13–18-year-old male and female adolescents stratified by waist to height ratio (WHR). Methods. Data were obtained from the Korea National Health and Nutrition Examination Survey (K-NHANES) conducted during 2008–2010. Central obesity was defined as that in the upper quartile of age and sex specific WHR. Subjects were classified into no central obesity normal weight (NW), central obesity normal weight (CONW), no central obesity overweight (OW), and central obesity overweight (COOW). Results. The prevalence of CONW was 9.6% (83/832) in female and 7.0% (61/909) in male. CONW showed higher levels of insulin (), HOMA-IR (), and ALT () than NW in female. CONW had higher levels of insulin (), HOMA-IR (), and WBC count () and lower level of HDL () than NW in male. WHR and BMI had similar significant correlations with MS components. CONW showed 2.5 times (95% confidence interval, 1.21–5.00) more likelihood to have high insulin resistance than NW in male. Conclusions. Screening for central obesity using WHR in clinical setting is recommended.