Journal of Obesity & Metabolic Syndrome



Korean J Obes 2009; 18(3): 78-86

Published online June 1, 2009

Copyright © Korean Society for the Study of Obesity.

The Usefulness of Waist to Hip Ratio Estimated by Bioelectric Impedance Analysis
in Diagnosing Metabolic Syndrome Based on NCEP-ATP III Guideline

In Cheol Hwang, Young Min Jo(1), Kyoung Kon Kim*

Department of Family Medicine, Gachon University Gil Hospital; and Graduate School of Medicine, Gachon University of Medicine and Science(1)


Background: Estimating the quantity and distribution
of body fat is essential in the diagnosis and treatment of
obesity. Recent tools based on the bioelectric impedance
analysis (BIA) not only demonstrate whole body fat, but
also display several indicators which reflect intraabdominal
fat. Currently, there have only been very few studies
about clinical implication of these indicators.
Methods: This study was based on the data of 132
patients (75 males, 57 females) visiting one particular
university hospital of Korea. Waist to hip ratio (WHR)
was calculated after directly measuring their waist
circumference (WC) and hip circumference, and WHR
inferenced by Inbody 720 (BIAWHR) was recorded.
Receiver operating characteristic (ROC) curve was used to
compare the predictability of WC, WHR and BIA-WHR
in diagnosing metabolic syndrome by means of the 2005
modified Adult Treatment Panel III definition based on
the American Heart Association and National Heart, Lung,
and Blood Institute.
Results: The mean age in each sexualities were 49.2 ±
11.4 in males, 43.1 ± 11.7 in females, mean BMI were
23.97 ± 2.86 kg/m2, 23.97 ± 2.86 kg/m2. Irrespective of
the diagnosis of metabolic syndrome, WHR and
BIA-WHR did not show to have significant distinction in
both sexualities. The area under the curve (AUC) in the
ROC analysis was calculated to be BIAWHR 0.7259,
WHR 0.6782, and WC 0.6459 in male recipients, and
BIAWHR 0.9503, WHR 0.9273, and WC 0.9018 in
females. In neither case of each sexualities the indicators
had no significant statistical distinction.
Conclusion: WHR-BIA was shown not to be inferior
on diagnosing metabolic syndrome compared to directly
measured WC or WHR.

Keywords: Bioelectric impedance analysis, Waist to hip
ratio, Metabolic syndrome