Sociodemographic patterns of urine sodium excretion and its association with hypertension in Chile: a cross-sectional analysis

Petermann-Rocha, F. et al. (2019) Sociodemographic patterns of urine sodium excretion and its association with hypertension in Chile: a cross-sectional analysis. Public Health Nutrition, 22(11), pp. 2012-2021. (doi: 10.1017/S1368980018003889) (PMID:30761970)

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Objective: The aim of the study was to determine the main factors (sociodemographic, anthropometric, lifestyle and health status) associated with high Na excretion in a representative population of Chile. Design: Na excretion (g/d), a valid marker of Na intake, was determined by urine analysis and Tanaka’s formulas. Blood pressure was measured by trained staff and derived from the mean of three readings recorded after 15 min rest. The associations of Na excretion with blood pressure and the primary correlates of high Na excretion were determined using logistic regression. Setting: Chileans aged ≥15 years. Participants: Participants (n 2913) from the Chilean National Health Survey 2009–2010. Results: Individuals aged 25 years or over, those who were obese and those who had hypertension, diabetes or metabolic syndrome were more likely to have higher Na excretion. The odds for hypertension increased by 10·2 % per 0·4 g/d increment in Na excretion (OR=1·10; 95 % CI 1·06, 1·14; P < 0·0001). These findings were independent of major confounding factors. Conclusions: Age, sex, adiposity, sitting behaviours and existing co-morbidities such as diabetes were associated with higher Na excretion levels in the Chilean population. These findings could help policy makers to implement public health strategies tailored towards individuals who are more likely to consume high levels of dietary salt.

Item Type:Articles
Additional Information:The Chilean National Health Survey (CNHS) 2009–2010 was funded by the Chilean Ministry of Health and led by the Department of Public Health, The Pontificia Universidad Católica de Chile. The present study was funded by the Chilean Health Ministry as part of the second health surveillance in Chile.
Glasgow Author(s) Enlighten ID:Celis, Dr Carlos and Gray, Dr Stuart and Brown, Miss Rosemary and Sillars, Dr Anne and Petermann, Mrs Fanny
Authors: Petermann-Rocha, F., Sillars, A., Brown, R., Sweeney, L., Troncoso, C., García-Hermoso, A., Leiva, A. M., Martínez, M. A., Diaz-Martínez, X., Poblete-Valderrama, F., Garrido-Mendez, A., Cataldo, X., Gonzalez, J. I., Salas, C., Lara, J., Gray, S. R., and Celis-Morales, C.
College/School:College of Medical Veterinary and Life Sciences > Institute of Cardiovascular and Medical Sciences
Journal Name:Public Health Nutrition
Publisher:Cambridge University Press
ISSN (Online):1475-2727
Published Online:14 February 2019
Copyright Holders:Copyright © 2019 The Authors
First Published:First published in Public Health Nutrition 22(11):2012-2021
Publisher Policy:Reproduced in accordance with the copyright policy of the publisher

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