Impact of high salt consumption of blood pressure on a non-hypertensive population Estimación del impacto del consumo de sal en los niveles de presión arterial en población no hipertensa entre 15 y 64 años

Abstract

© 2017, Sociedad Medica de Santiago. All rights reserved. Background: There is conflicting evidence regarding the role of salt intake in blood pressure (BP). Aim: To estimate the impact of salt consumption on the BP level of a non-hypertensive population aged between 15 and 64 years. Material and Methods: Analytical-observational study using data from the National Health Survey 2009-2010. A BP cut-off point at 120/80 mmHg BP was considered to determine risk. Salt consumption was divided into four strata. The prevalence ratios (PR) were determined using the Poisson model with robust variance. The formulas of the studies of Dal Grande and Walter for the estimation of population attributable fraction (PAF) were used. Results: The sample was constituted by 1,263 individuals and 24.3% had BP at risk. A statistically significant association was observed between high salt intake and risk BP with PR of 1.91 (95% confidence intervals (CI) 1.44-2.57) in the consumption stratum of 11 g / day and