Evidence map›Paper›PMID 29443353›Full record

ArticleCardiovascular journal of Africa

Obesity masks the relationship between dietary salt intake and blood pressure in people of African ancestry: the impact of obesity on the relationship between sodium and blood pressure.

Muzi Maseko, Mercy Mashao, Abdulraheem Bawa-Allah, Edgar Phukubje, Bongubuhle Mlambo, Thamsanqa Nyundu

Open access · greenAbstract read
In one paragraph

Article in Cardiovascular journal of Africa. The graph could read no effect estimate from its abstract, so it casts no vote on the map. Cited by 4 papers, 1 of them a synthesis that pooled it.

0numbers the graph read from it
0cells of the map it votes in
4citing papers in PubMed, 1 pooled it
0.9field-weighted citation impact, top 27% 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

4 citing papers in PubMed, 1 synthesis or guideline pooled it, 8 citations in OpenAlex.

  1. Pooled it
  2. Article
  3. Article
  4. Review
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

6 authors at 1 institution in 1 country.

Muzi MasekoSchool of Physiology, Faculty of Health Sciences, University of the Witwatersrand, Johannesburg, South Africa. Email: muzi.maseko@wits.ac.za.
Mercy MashaoSchool of Physiology, Faculty of Health Sciences, University of the Witwatersrand, Johannesburg, South Africa.
Abdulraheem Bawa-AllahSchool of Physiology, Faculty of Health Sciences, University of the Witwatersrand, Johannesburg, South Africa.
Edgar PhukubjeSchool of Physiology, Faculty of Health Sciences, University of the Witwatersrand, Johannesburg, South Africa.
Bongubuhle MlamboSchool of Physiology, Faculty of Health Sciences, University of the Witwatersrand, Johannesburg, South Africa.
Thamsanqa NyunduSchool of Physiology, Faculty of Health Sciences, University of the Witwatersrand, Johannesburg, South Africa.
University of the Witwatersrand · ZA

Funding

No grant is acknowledged in the PubMed record.

6 · The paper itself

Abstract

Previous studies conducted to investigate the relationship between sodium intake and blood pressure in our African population have yielded contradictory results. With the high prevalence of obesity in this population, it is possible that these contradictory findings are due to the masking effects of obesity on this relationship. We measured 24-hour ambulatory blood pressure and 24-hour urine excretion on 547 South Africans of African ancestry. A multivariate regression analysis revealed no independent relationship between 24-hour sodium excretion and blood pressure in the total population sample, but when participants were stratified according to body mass index (BMI) status, there was a significant association between 24-hour sodium excretion and blood pressure in the normal-BMI participants but not in the overweight/obese participants. We concluded that dietary salt intake, indexed by 24-hour urinary sodium excretion, was associated with increased ambulatory blood pressure but this relationship was masked because of a high proportion of overweight/obese individuals in this population.

Indexed as

Black PeopleBlood PressureAdultAgedBody Mass IndexFemaleHumansHypertensionMaleMiddle AgedNatriuresisObesityRenal EliminationRisk AssessmentRisk FactorsSodium Chloride, DietarySodium Chloride, Dietary

Identifiers

PMID29443353
PMCPMC6107806
OpenAlexW2810890536

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.