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Open Access Highly Accessed Research article

Optimal cutoff of the waist-to-hip ratio for detecting cardiovascular risk factors among Han adults in Xinjiang

Shuang-Shuang Li12, Shuo Pan12, Yi-Tong Ma12*, Yi-Ning Yang12, Xiang Ma12, Xiao-Mei Li12, Zhen-Yan Fu12, Xiang Xie12, Fen Liu2, You Chen12, Bang-Dang Chen2, Zi-Xiang Yu12, Chun-Hui He12, Ying-Ying Zheng12, Nuremanguli Abudukeremu12, Jialin Abuzhalihan12 and Yong-Tao Wang12

  • * Corresponding author: Yi-Tong Ma myt-xj@163.com

  • † Equal contributors

Author Affiliations

1 Department of Cardiology, First Affiliated Hospital of Xinjiang Medical University, Urumqi 830054, China

2 Xinjiang Key Laboratory of Cardiovascular Disease Research, Urumqi, China

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BMC Cardiovascular Disorders 2014, 14:93  doi:10.1186/1471-2261-14-93

Published: 29 July 2014

Abstract

Background

The optimal cutoff of the waist-to-hip ratio (WHR) among Han adults in Xinjiang, which is located in the center of Asia, is unknown. We aimed to examine the relationship between different WHRs and cardiovascular risk factors among Han adults in Xinjiang, and determine the optimal cutoff of the WHR.

Methods

The Cardiovascular Risk Survey was conducted from October 2007 to March 2010. A total of 14618 representative participants were selected using a four-stage stratified sampling method. A total of 5757 Han participants were included in the study. The present statistical analysis was restricted to the 5595 Han subjects who had complete anthropometric data. The sensitivity, specificity, and distance on the receiver operating characteristic (ROC) curve in each WHR level were calculated. The shortest distance in the ROC curves was used to determine the optimal cutoff of the WHR for detecting cardiovascular risk factors.

Results

In women, the WHR was positively associated with systolic blood pressure, diastolic blood pressure, and serum concentrations of serum total cholesterol. The prevalence of hypertension and hypertriglyceridemia increased as the WHR increased. The same results were not observed among men. The optimal WHR cutoffs for predicting hypertension, diabetes, dyslipidemia and ≥ two of these risk factors for Han adults in Xinjiang were 0.92, 0.92, 0.91, 0.92 in men and 0.88, 0.89, 0.88, 0.89 in women, respectively.

Conclusions

Higher cutoffs for the WHR are required in the identification of Han adults aged ≥ 35 years with a high risk of cardiovascular diseases in Xinjiang.

Keywords:
Cutoff; Waist-to-hip ratio; Cardiovascular risk factors; Han adults; Xinjiang