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Anales de la Facultad de Ciencias Médicas (Asunción)

versión impresa ISSN 1816-8949


SEQUERA, VG et al. Urinary sodium excretion patterns in adult population in spot urine samples. An. Fac. Cienc. Méd. (Asunción) [online]. 2017, vol.50, n.1, pp.51-60. ISSN 1816-8949.


The present study describes natriuresis patterns according to clinical and sociodemographic characteristics in adult population of Asuncion.


Cross-sectional study of convenience sampling to people who attended the Mercado de Abasto and the Municipal Polyclinic during June to September 2014. People from 18 to 65 years old were included. Sodium was estimated from urine samples of spot urine taken in the morning and fasting. Median values of natriuresis in mmol/L were compared using the test Mann-Whitney and Kruskal-Wallis.


463 people participated. 69.5% (322) were women. The mean age was 50.5 years (SD 14.2). 26.6% (123) denied pathological medical history. The median overall natriuresis was 97.5 mmol/L (IQR: 59.3-139.3). Natriuresis levels did not differ by sex. High values with statistically significant were presented in people under 30 years old, with low consumption of vegetables and increased consumption of fried food. The group of healthy subjects showed increased sodium excretion than those who reported diabetes or high blood pressure.


The increased natriuresis occurs in young people without having pathological medical history and also having the worst eating habits. Public health policies must focus at this level to prevent future cardiovascular and renal disease it is at this level where public health must intervene to prevent future cardiovascular and renal disease.

Palabras clave : natriuresis; low-salt diet; high blood pressure; lifestyle..

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