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19.10.2018 | Original Contribution

Estimation of salt intake and excretion in children in one region of Switzerland: a cross-sectional study

Zeitschrift:
European Journal of Nutrition
Autoren:
Magali Rios-Leyvraz, Pascal Bovet, Murielle Bochud, Bernard Genin, Michel Russo, Michel F. Rossier, René Tabin, Arnaud Chiolero
Wichtige Hinweise

Electronic supplementary material

The online version of this article (https://​doi.​org/​10.​1007/​s00394-018-1845-4) contains supplementary material, which is available to authorized users.

Abstract

Purpose

Salt intake among children in Switzerland is unknown. The objectives of this study were to determine salt excretion and to identify the main dietary sources of salt intake among children in one region of Switzerland.

Methods

We conducted a cross-sectional study using a convenient sample of children 6–16 years of age in Valais, Switzerland, between 2016 and 2018. All children visiting several regional health care providers and without any clinical condition that could affect sodium intake or excretion were eligible. Each child completed a 24-h urine collection to assess salt excretion and two dietary questionnaires to assess dietary sources of salt intake. Weight and height were measured.

Results

Data were available on 94 children (55 boys and 39 girls; mean age 10.5 years; age range 6–16 years). The mean 24-h salt urinary excretion was 5.9 g [SD 2.8; range 0.8–16.0; 95% confidence interval (CI) 5.3–6.5]. Two-thirds (62%) of the children had salt excretions above recommendations of maximum intake (i.e., ≥ 2 g per day for children up to 6 years of age and ≥ 5 g per day for children 7–16 years of age). The salt excretion tended to be higher during the week-end (6.0 g, 95% CI 5.4–6.6) than during the week (5.4 g, 95% CI 4.3–6.7). The main sources of salt intake were pastas, potatoes, and rice (23% of total salt intake), pastries (16%), bread (16%), and cured meats (10%). One child out of three (34%) added salt to their plate at the table.

Conclusions

Salt intake in children in one region of Switzerland was high. Our findings suggest that salt intake in children could be reduced by lowering salt content in commonly eaten foods.

Trial registration number

NCT02900261.

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Zusatzmaterial
Supplementary material 1 (PDF 231 KB)
394_2018_1845_MOESM1_ESM.pdf
Literatur
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