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Submitted: 22 Sep 2019
Accepted: 12 Jan 2020
ePublished: 30 Mar 2020
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Health Promot Perspect. 2020;10(2): 142-147.
doi: 10.34172/hpp.2020.23
PMID: 32296627
PMCID: PMC7146042
  Abstract View: 202
  PDF Download: 159
  Full Text View: 65

Original Article

What are the optimal cut-off points of anthropometric indices for prediction of overweight and obesity? Predictive validity of waist circumference, waist-to-hip and waist-to-height ratios

Helda Tutunchi 1 ORCID logo, Mehrangiz Ebrahimi-Mameghani 2, Alireza Ostadrahimi 3, Mohammad Asghari-Jafarabadi 4 * ORCID logo

1 Student Research Committee, Nutrition Research Center, School of Nutrition & Food Sciences, Tabriz University of Medical Sciences, Tabriz, Iran
2 Social Determinant of Health Research Center, Tabriz University of Medical Sciences, Tabriz, Iran
3 Nutrition Research Center, Department of Clinical Nutrition, Tabriz University of Medical Sciences, Tabriz, Iran
4 Road Traffic Injury Research Center, Tabriz University of Medical Sciences, Tabriz, Iran
*Corresponding Author: Mohammad Asghari Jafarabadi, Email: m.asghari862@gmail.com

Abstract

Background: Planning for obesity prevention is an important global health priority. Our aim in this study was to find the optimal cut-off points of waist circumference (WC), waist- to- hipratio (WHR) and waist- to- height ratio (WHtR), as three anthropometric indices, for prediction of overweight and obesity. We also aimed to compare the predictive ability of these indices to introduce the best choice.

Methods: In this cross-sectional study, a total of 500 subjects were investigated. Anthropometric indicators were measured using a standard protocol. We considered body mass index (BMI) as the simple and most commonly used index for measuring general obesity as the comparison indicator in the present study to assess the diagnostic value for other reported obesity indices.We also performed receiver operating characteristic (ROC) curve analysis to define the optimal cut-off points of the anthropometric indicators and the best indices for overweight and obesity.

Results: The proposed optimal cut-offs for WC, WHtR, and WHR were 84 cm, 0.48 and 0.78for women and 98 cm, 0.56 and 0.87 for men, respectively. The area under the ROC curve ofWHtR (women: AUC=0.97, 95% CI: 0.96-0.99 vs. men: AUC=0.97, 95%CI: 0.96-0.99) and WC(women: AUC=0.97, 95% CI, 0.95-0.99 vs. men: AUC=0.98, 95% CI: 0.97-0.99) were greater than WHR (women: AUC=0.79, 95% CI =0.74-0.85 vs. men: AUC=0.84, 95% CI=0.79-0.88).

Conclusion: This study demonstrated that the WC and WHtR indicators are stronger indicators compared to the others. However, further studies using desirable and also local cutoffs against more accurate techniques for body fat measurement such as computerized tumor (CT) scans and dual-energy x-ray absorptiometry (DEXA) are required.

Keywords: Anthropometric indices, Iranian adults, Obesity, Receiver operating characteristics
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