• Nutrition · Nov 2020

    Is waist-to-height ratio a better predictor of hypertension and type 2 diabetes than body mass index and waist circumference in the Chilean population?

    • Fanny Petermann-Rocha, Natalia Ulloa, María Adela Martínez-Sanguinetti, Ana María Leiva, Miquel Martorell, Marcelo Villagrán, Claudia Troncoso-Pantoja, Frederick K Ho, Carlos Celis-Morales, Alonso Pizarro, and ELHOC-Chile Research Consortium.
    • Institute of Health and Wellbeing, On behalf of ELHOC-Chile Research Consortium, Glasgow, United Kingdom; British Heart Foundation Glasgow Cardiovascular Research Centre, Institute of Cardiovascular and Medical Sciences, University of Glasgow, Glasgow, United Kingdom. Electronic address: f.petermann-rocha.1@research.gla.ac.uk.
    • Nutrition. 2020 Nov 1; 79-80: 110932.

    ObjectiveThe aim of this study was to identify which anthropometric measurement (body mass index [BMI], waist circumference [WC], or waist-to-height ratio [WHtR]) is a better predictor of type 2 diabetes and hypertension in the Chilean population.MethodsThe study included 13 044 participants (59.7% women) from the Chilean National Health Surveys conducted in 2003, 2009-2010, and 2016-2017. BMI, WC, and WHtR were the anthropometric measurements evaluated. Hypertension was defined as systolic blood pressure ≥140 mm Hg and diastolic blood pressure ≥90 mm Hg or on medication for hypertension. Diabetes was defined as fasting glucose ≥7 mmol/L or on medication for diabetes. The receiver operating characteristics (ROC) curve and the area under curve (AUC) were computed to derive the specificity and sensitivity using a bootstrapping approach.ResultsCompared with BMI and WC, WHtR was the anthropometric measurement with the highest AUC curve in both sexes for hypertension (AUC for women: 0.70; 95% confidence interval [CI], 0.67-0.73; AUC for men: 0.71; 95% CI, 0.69-0.74) and diabetes (AUC for women: 0.71; 95% CI, 0.66-0.77; AUC for men: 0.71; 95% CI, 0.67-0.76). The sex-specific cutoff points of WHtR to predict hypertension were 0.59 and 0.55 for women and men, respectively. Those used to predict diabetes were 0.60 and 0.58 for women and men, respectively.ConclusionWHtR was a better predictor of hypertension and diabetes than BMI and WC in Chile. The definition of cutoff points specific for the Chilean population could be implemented in future screening programs aiming to identify high-risk individuals.Copyright © 2020 Elsevier Inc. All rights reserved.

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