SynthesisThe Cochrane database of systematic reviews2011
Dietary sodium manipulation and asthma.
Synthesis in The Cochrane database of systematic reviews, 2011. The graph could read no effect estimate from its abstract, so it casts no vote on the map. Cited by 15 papers, 2 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
15 citing papers in PubMed, 2 syntheses or guidelines pooled it, 23 citations in OpenAlex.
- Impact of non-drug therapies on asthma control: A systematic review of the literature.The European journal of general practice · 2019Pooled it
- Interventions for managing asthma in pregnancy.The Cochrane database of systematic reviews · 2014Pooled it
- Urinary sodium, table salt use and incidence of late-onset asthma in females and males: evidence from a large prospective cohort.ERJ open research · 2026Article
- Association between dietary preferences and asthma among first-grade primary school children.Pediatric investigation · 2025Article
- An evaluation of the recommendations for primary nutrition research addressing noncommunicable disease using the EPICOT+ framework: A cross-sectional descriptive meta-research study of Cochrane nutrition systematic reviews.Cochrane evidence synthesis and methods · 2024Article
- Mediterranean Diet and Airway Inflammation in School-Aged Children.Children (Basel, Switzerland) · 2023Article
- Review
- Evidence for lifestyle interventions in asthma.Breathe (Sheffield, England) · 2019Review
- Cellular Na+ handling mechanisms involved in airway smooth muscle contraction (Review).International journal of molecular medicine · 2017Review
- Epithelial Sodium and Chloride Channels and Asthma.Chinese medical journal · 2015Review
- Association between Western diet pattern and adult asthma: a focused review.Annals of allergy, asthma & immunology : official publication of the American College of Allergy, Asthma, & Immunology · 2015Review
- Sodium intake is associated with increased disease activity in multiple sclerosis.Journal of neurology, neurosurgery, and psychiatry · 2015Observational
- Cardiovascular and other effects of salt consumption.Kidney international supplements · 2013Article
- Pediatric exercise-induced bronchoconstriction: contemporary developments in epidemiology, pathogenesis, presentation, diagnosis, and therapy.Current allergy and asthma reports · 2013Review
- Practical approach to exercise-induced bronchoconstriction in athletes.Primary care respiratory journal : journal of the General Practice Airways Group · 2013Article
Corrections and comments
- Update of
Authors and funding
2 authors at 2 institutions in 1 country.
Funding
No grant is acknowledged in the PubMed record.
Abstract
backgroundThere is a wide geographical variation in the prevalence of asthma and observational studies have suggested that dietary sodium may play a role.
objectivesTo assess the effect of dietary sodium manipulation on asthma control. SEARCH STRATEGY: We carried out a search using the Cochrane Airways Group asthma register. We searched the bibliographies of included randomised controlled trials (RCTs) for additional studies. We carried out the most recent search in November 2010. SELECTION CRITERIA: We considered only RCTs that involved dietary sodium reduction or increased sodium intake in patients with asthma. DATA COLLECTION AND ANALYSIS: Both review authors assessed study and extracted data. We conducted data analyses in RevMan 5 using mean differences and random effects. MAIN
resultsWe identified a total of nine studies in relation to sodium manipulation and asthma, of which five were in people with asthma (318 participants), and four in people with exercise-induced asthma (63 participants). There were no significant benefits of salt restriction on the control of asthma. There was some evidence from the exercise-induced asthma studies that a low sodium diet may improve lung function after exercise and possibly baseline lung function, but this is based on findings from a very small numbers of participants. AUTHORS'
conclusionsThis review did not find any evidence that dietary sodium reduction significantly improves asthma control. Although dietary sodium reduction may result in improvements in lung function in exercise-induced asthma, the clinical significance of this effect is unclear.
Indexed as
Identifiers
What OpenQuestion holds
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.