Evidence map›Paper›PMID 32106813›Full record

SynthesisBMC cardiovascular disorders2020

The hypotensive effect of salt substitutes in stage 2 hypertension: a systematic review and meta-analysis.

Sadegh Jafarnejad, Hamed Mirzaei, Cain C T Clark, Mohsen Taghizadeh, Armin Ebrahimzadeh

Open access · goldAbstract readMeta-AnalysisSystematic Review
In one paragraph

Synthesis in BMC cardiovascular disorders, 2020. The graph could read no effect estimate from its abstract, so it casts no vote on the map. Cited by 11 papers, 4 of them syntheses that pooled it.

0numbers the graph read from it
0cells of the map it votes in
11citing papers in PubMed, 4 pooled it
1.4field-weighted citation impact, top 20% of its field
1 · What the graph read from 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.

2 · The registry

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.

3 · Its place in the literature

Who cites it

11 citing papers in PubMed, 4 syntheses or guidelines pooled it, 24 citations in OpenAlex.

  1. Pooled it
  2. Pooled it
  3. Pooled it
  4. Pooled it
  5. Trial
  6. Article
  7. Updates in the 2025 AHA/ACC Hypertension Guideline.Current hypertension reports · 2026
    Review
  8. Review
  9. Article
  10. Review
  11. Brazilian Guidelines of Hypertension - 2020.Arquivos brasileiros de cardiologia · 2021
    Article
4 · The record

Corrections and comments

PubMed lists nothing against this paper. Absence here is not a guarantee, only a check that was made.

5 · Who and what money

Authors and funding

5 authors at 2 institutions in 2 countries.

Sadegh JafarnejadResearch Center for Biochemistry and Nutrition in Metabolic Diseases, Kashan, University of Medical Sciences, Kashan, IR, Iran. sjafarnejad@alumnus.tums.ac.ir.ORCID 0000-0002-4666-1918
Hamed MirzaeiResearch Center for Biochemistry and Nutrition in Metabolic Diseases, Kashan, University of Medical Sciences, Kashan, IR, Iran.
Cain C T ClarkCentre for Sport, Exercise, and Life Sciences, Coventry University, Coventry, UK.
Mohsen TaghizadehResearch Center for Biochemistry and Nutrition in Metabolic Diseases, Kashan, University of Medical Sciences, Kashan, IR, Iran.
Armin EbrahimzadehResearch Center for Biochemistry and Nutrition in Metabolic Diseases, Kashan, University of Medical Sciences, Kashan, IR, Iran.
Kashan University of Medical Sciences · IRCoventry University · GB

Funding

No grant is acknowledged in the PubMed record.

6 · The paper itself

Abstract

backgroundHypertension (HTN) is a ubiquitous risk factor for numerous non-communicable diseases, including cardiovascular disease and stroke. There are currently no wholly effective pharmacological therapies for subjects with HTN. However, salt substitutes have emerged as a potential therapy for the treatment of HTN. The aim of the present study was to assess the effect of salt substitutes on reducing systolic blood pressure (SBP) and diastolic BP (DBP), following a meta-analysis of randomized controlled trials.

methodsStudies were found via systematic searches of the Pubmed/Medline, Scopus, Ovid, Google Scholar and Cochrane library. Ten studies, comprised of 11 trials and 1119 participants, were included in the meta-analysis.

resultsPooled weighted mean differences showed significant reductions of SBP (WMD - 8.87 mmHg; 95% CI - 11.19, - 6.55, p < 0.001) and DBP (WMD - 4.04 mmHg; 95% CI - 5.70, - 2.39) with no statistically significant heterogeneity between the 11 included comparisons of SBPs and DBPs. The stratified analysis of trials based on the mean age of participants showed a significant reduction in the mean difference of SBP in both adults (< 65 years old) and elderly (≥65 years old). However, the DBP-lowering effect of salt substitutes was only observed in adult patients (WMD - 4.22 mmHg; 95% CI - 7.85, - 0.58), but not in the elderly subjects.

conclusionsThese findings suggest that salt-substitution strategies could be used for lowering SBP and DBP in patients with stage 2 HTN; providing a nutritional platform for the treatment, amelioration, and prevention of HTN.

Indexed as

Blood PressureDiet, HealthyDiet, Sodium-RestrictedRisk Reduction BehaviorAdultAgedFemaleHumansHypertensionMaleMiddle AgedProtective FactorsRandomized Controlled Trials as TopicRisk AssessmentRisk FactorsSodium Chloride, DietarySodium Chloride, DietaryDiastolic blood pressureHypertensionMeta-analysisSalt substitutesSystolic blood pressure

Identifiers

PMID32106813
PMCPMC7047420
OpenAlexW3011824903

What OpenQuestion holds

Textmetadata
LicenceCC BY
Read underepoch 390

Registered trials

None linked

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.