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. 2020 Feb;38(2):249-256.
doi: 10.1097/HJH.0000000000002228.

Relationship between BMI and aortic stiffness: influence of anthropometric indices in hypertensive men and women

Alexandre Vallée  1 , Valérie Olié  2 , H É Lène Lelong  1 , Sandrine Kretz  1 , Michel E Safar  1 , Jacques Blacher  1
Affiliations

Relationship between BMI and aortic stiffness: influence of anthropometric indices in hypertensive men and women

Alexandre Vallée et al. J Hypertens. 2020 Feb.

Abstract

Background: Increased aortic stiffness could be one of the mechanisms by which obesity increases cardiovascular risk independently of traditional risk factors. Studies have suggested that anthropometric indices may be predictors of cardiovascular risk but few studies have investigated their relations with aortic stiffness in high cardiovascular risk population. We investigated the strength of correlation between different anthropometric indices with aortic stiffness in hypertensive and diabetic patients.

Methods: A cross-sectional study was performed in 474 hypertensive patients. Anthropometric indices were calculated: BMI, waist circumference, waist-hip ratio, and waist-height ratio (WHtR). Aortic stiffness was assessed by measurement of carotid-femoral pulse wave velocity (PWV). Correlations between indices and PWV were investigated by linear regression analyses and hierarchical analyses after adjusting for cardiovascular risk factors.

Results: Regional anthropometric indices were more strongly correlated with PWV than BMI in both sexes. In linear regression analyses, WHtR presented the highest correlation with PWV than other indices in our study population. In adjusted hierarchical regression used, WHtR had the highest additive value on top of BMI while there no additive value of BMI on top of WHtR. These differences remained after adjustment on cardiovascular events. In men WHtR was more closely correlated with PWV than others. In women, waist-hip ratio and WHtR were equally correlated with PWV compared with BMI.

Conclusion: Regional anthropometric indices are more closely correlated with PWV than BMI in hypertensive patients. WHtR presents the highest correlation with PWV beyond BMI.

Registration: The study was registered in the French National Agency for Medicines and Health Products Safety (No. 2013-A00227-38) and was approved by the Advisory Committee for Protection of Persons in Biomedical Research.

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