Trial reportHypertension research : official journal of the Japanese Society of Hypertension2018
Effects of self-monitoring of daily salt intake estimated by a simple electrical device for salt reduction: a cluster randomized trial.
Trial report in Hypertension research : official journal of the Japanese Society of Hypertension, 2018. The graph could read no effect estimate from its abstract, so it casts no vote on the map. Cited by 19 papers, 5 of them syntheses that pooled it.
What it found
Each row is one number read from the abstract, on the scale the paper reported it, with its interval. Left of the dashed line favours the treatment, right favours the comparator. Under each row is the sentence it came from. New to these charts? A ten-minute tutorial.
The abstract states no effect estimate the extractor could read, or names no intervention and outcome on the map, so this paper lights no cell and moves no belief. It is still indexed, cited and linked below.
The trial behind it
Trials whose registry record cites this paper, or whose number appears in the abstract. A trial that started after this paper was published is citing it as background, not reporting it.
Neither the registry nor the abstract names a trial number. If this is a trial report, that itself is worth knowing.
Who cites it
19 citing papers in PubMed, 5 syntheses or guidelines pooled it.
- Effectiveness of self-monitoring devices measuring the urinary sodium-to-potassium ratio, urinary salt (sodium) excretion, or salt concentration in foods for blood pressure management: a systematic review and meta-analysis.Hypertension research : official journal of the Japanese Society of Hypertension · 2025Pooled it
- Effect of population-based sodium reduction interventions on blood pressure: a systematic review and meta-analysis of randomized trials.Hypertension research : official journal of the Japanese Society of Hypertension · 2025Pooled it
- Pooled it
- Pooled it
- Dietary Sodium Intake and Health Indicators: A Systematic Review of Published Literature between January 2015 and December 2019.Advances in nutrition (Bethesda, Md.) · 2020Pooled it
- Community-based intervention for monitoring of salt intake in hypertensive patients: A cluster randomized controlled trial.PloS one · 2024Trial
- Short-Term Effects of Salt Restriction via Home Dishes Do Not Persist in the Long Term: A Randomized Control Study.Nutrients · 2020Trial
- Effect of population-approach programs promoting salt reduction and potassium intake in Japan: the Population-based Sodium/Potassium Improvement Program (PoSPIP).Hypertension research : official journal of the Japanese Society of Hypertension · 2026Observational
- Article
- The Japanese Society of Hypertension Guidelines for blood pressure control using digital technologies.Hypertension research : official journal of the Japanese Society of Hypertension · 2026Article
- The Japanese Society of Hypertension Guidelines for the management of elevated blood pressure and hypertension 2025 (JSH2025).Hypertension research : official journal of the Japanese Society of Hypertension · 2026Article
- Development of a Culinary Intervention (Cooking Class) for Salt Reduction in Japanese Home Cooking: Strategies and Assessment.AJPM focus · 2024Article
- Technology-supported behavior change interventions for reducing sodium intake in adults: a systematic review and meta-analysis.NPJ digital medicine · 2024Review
- Feasibility of Assessment of Habitual Salt Intake Using a 24-h Urinary Salt Excretion Self-Measuring Device.Annals of nutrition & metabolism · 2024Article
- Dietary salt intake in Japan - past, present, and future.Hypertension research : official journal of the Japanese Society of Hypertension · 2022Review
- Development of a Method for Estimating Dietary Salt Intake Using the Overnight Urinary Sodium/Potassium Ratio.Journal of clinical medicine research · 2021Article
- Salt intake per dish in the Japanese diet: a clue to help establish dietary goals at home.Journal of nutritional science · 2021Article
- Practical and personal education of dietary therapy in hypertensive patients.Hypertension research : official journal of the Japanese Society of Hypertension · 2020Review
- Unhealthy changes in eating habits cause acute onset hypertension in the normotensive community-dwelling elderly-3 years cohort study.Medicine · 2019Article
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Authors and funding
8 authors.
Funding
No grant is acknowledged in the PubMed record.
Abstract
Recently, a simple device for self-monitoring of daily salt intake was developed, and it is recommended by The Japanese Society of Hypertension. This study aimed to investigate the effects of this device on salt reduction and on lowering blood pressure. In this single blinded, cluster randomized controlled trial, families were randomly assigned to either an intervention or a control group. Participants in both groups attended lectures about salt reduction, but only the intervention group used the self-monitoring device to estimate their daily salt intake. The main outcome measure was the difference in the estimated daily salt intake by spot urine between the two groups after 4 weeks. The secondary outcome was the difference in blood pressure. A total of 105 families (158 participants) were randomized. The mean daily salt intake was 9.04 (SD 1.77) g/day in the control group and 9.37 (SD 2.13) g/day in the intervention group at baseline. After 4 weeks, the mean daily salt intake was 8.97 (SD 1.97) g/day in the control group and 8.60 (SD 2.25) g/day in the intervention group; the mean difference between the two groups was -0.50 g/day (95% confidence interval (CI) -0.95, -0.05; P = 0.030). The mean difference in systolic blood pressure was -4.4 mm Hg (95% CI -8.7, -0.1; P = 0.044). This is the first randomized controlled trial to demonstrate the effectiveness of a device for self-monitoring of salt intake with a significant reduction in daily salt intake and systolic blood pressure.
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Registered trials
Read under generation 80e0d062 · epoch 390. Bibliography from PubMed, PubMed Central and OpenAlex; grants from NIH RePORTER; trial links from ClinicalTrials.gov; estimates, votes and beliefs from the OpenQuestion graph.