Evidence map›Paper›PMID 31076654›Full record

ArticleJournal of human hypertension2020

Prediction of 24-hour sodium excretion from spot urine samples in South African adults: a comparison of four equations.

Karen Charlton, Lisa J Ware, Glory Chidumwa, Marike Cockeran, Aletta E Schutte, Nirmala Naidoo, Paul Kowal

Open access · hybridAbstract read
In one paragraph

Article in Journal of human hypertension, 2020. The graph could read no effect estimate from its abstract, so it casts no vote on the map. Cited by 10 papers.

0numbers the graph read from it
0cells of the map it votes in
10citing papers in PubMed
2.1field-weighted citation impact, top 14% 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

10 citing papers in PubMed, 22 citations in OpenAlex.

  1. Article
  2. Article
  3. Article
  4. Article
  5. Spot Urine Samples to Estimate Na and K Intake in Patients With Chronic Kidney Disease and Healthy Adults: A Secondary Analysis From a Controlled Feeding Study.Journal of renal nutrition : the official journal of the Council on Renal Nutrition of the National Kidney Foundation · 2021
    Article
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  7. Review
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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

7 authors at 4 institutions in 4 countries.

Karen CharltonSchool of Medicine, University of Wollongong, New South Wales, Australia and Illawarra Health and Medical Research Institute, Wollongong, NSW, Australia. karenc@uow.edu.au.ORCID http://orcid.org/0000-0002-8044-444X
Lisa J WareSouth African MRC Developmental Pathways for Health Research Unit, School of Clinical Medicine, Faculty of Health Sciences, University of the Witwatersrand, Johannesburg, South Africa.
Glory ChidumwaSouth African MRC Developmental Pathways for Health Research Unit, School of Clinical Medicine, Faculty of Health Sciences, University of the Witwatersrand, Johannesburg, South Africa.ORCID http://orcid.org/0000-0002-8743-9045
Marike CockeranStatistical Consultation Services, North-West University, 11 Hoffman Street, Potchefstroom; Private Bag X6001, Potchefstroom, 2520, South Africa.
Aletta E SchutteHypertension in Africa Research Team (HART), North-West University, Potchefstroom, South Africa.ORCID http://orcid.org/0000-0001-9217-4937
Nirmala NaidooWorld Health Organization (WHO), Geneva, Switzerland.
Paul KowalWorld Health Organization (WHO), Geneva, Switzerland.ORCID http://orcid.org/0000-0002-6314-8753
North-West University · ZAUniversity of the Witwatersrand · ZAWorld Health Organization · CHUniversity of Wollongong · AU

Funding

Towards improving the measurement of health and disability trends, the compressioR01AG034479 · NIA · WORLD HEALTH ORGANIZATION · PI CHATTERJI, SOMNATH · 2010 to 2014
$5.3M
NIA NIH HHS R01 AG034479World Health Organization 001
6 · The paper itself

Abstract

Repeated 24-hour urine collection is considered to be the gold standard for assessing salt intake. This is often impractical in large-population studies, especially in low-middle-income countries. Equations to estimate 24-hour urinary salt excretion from a spot urine sample have been developed, but have not been widely validated in African populations. This study aimed to systematically assess the validity of four existing equations to predict 24-hour urinary sodium excretion (24UNa) from spot urine samples in a nationally representative sample of South Africans. Spot and 24-hour urine samples were collected in a subsample (n = 438) of participants from the World Health Organisation Study on global AGEing and adult health (SAGE) Wave 2 in South Africa in 2015. Measured 24UNa values were compared with predicted 24UNa values from the Kawasaki, Tanaka, INTERSALT and Mage equations using Bland-Altman plots. In this subsample (mean age 52.8 ± 16.4 years; body mass index 30.2 ± 8.2 kg/m

Indexed as

HypertensionSodiumUrinalysisFemaleHumansMaleMiddle AgedRenal EliminationReproducibility of ResultsSodium Chloride, DietarySouth AfricaUrine Specimen CollectionSodiumSodium Chloride, Dietary

Identifiers

PMID31076654
PMCPMC6968953
OpenAlexW2944231379

What OpenQuestion holds

Textmetadata
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.