Self-monitoring of Urinary Salt Excretion As a Method of Salt-reduction Education: a Parallel, Randomized Trial Involving Two Groups

Overview

Journal Public Health Nutr

Publisher Cambridge University Press

Date 2018 Feb 21

PMID 29458447

Citations 6

Authors

Kenichiro Yasutake

Emiko Miyoshi

Yukiko Misumi

Tomomi Kajiyama

Tamami Fukuda

Taeko Ishii

Ririko Moriguchi

Yusuke Murata

Kenji Ohe

Munechika Enjoji

Takuya Tsuchihashi

Affiliations

Soon will be listed here.

Abstract

Objective: The present study aimed to evaluate salt-reduction education using a self-monitoring urinary salt-excretion device.

Design: Parallel, randomized trial involving two groups. The following parameters were checked at baseline and endline of the intervention: salt check sheet, eating behaviour questionnaire, 24 h home urine collection, blood pressure before and after urine collection.

Setting: The intervention group self-monitored urine salt excretion using a self-measuring device for 4 weeks. In the control group, urine salt excretion was measured, but the individuals were not informed of the result.

Subjects: Seventy-eight individuals (control group, n 36; intervention group, n 42) collected two 24 h urine samples from a target population of 123 local resident volunteers. The samples were then analysed.

Results: There were no differences in clinical background or related parameters between the two groups. The 24 h urinary Na:K ratio showed a significant decrease in the intervention group (-1·1) compared with the control group (-0·0; P=0·033). Blood pressure did not change in either group. The results of the salt check sheet did not change in the control group but were significantly lower in the intervention group. The score of the eating behaviour questionnaire did not change in the control group, but the intervention group showed a significant increase in eating behaviour stage.

Conclusions: Self-monitoring of urinary salt excretion helps to improve 24 h urinary Na:K, salt check sheet scores and stage of eating behaviour. Thus, usage of self-monitoring tools has an educational potential in salt intake reduction.

Citing Articles

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Practical use and target value of urine sodium-to-potassium ratio in assessment of hypertension risk for Japanese: Consensus Statement by the Japanese Society of Hypertension Working Group on Urine Sodium-to-Potassium Ratio.

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Feasibility of Assessment of Habitual Salt Intake Using a 24-h Urinary Salt Excretion Self-Measuring Device.

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