Evidence map›Paper›PMID 23839666›Full record

ArticleEuropean journal of clinical nutrition2013

Development and validation of bioelectrical impedance analysis equations for predicting total body water and fat-free mass in North-African adults.

K E Aglago, I El Menchawy, K El Kari, A El Hamdouchi, A Barkat, R Bengueddour, N El Haloui, N Mokhtar, H Aguenaou

Abstract readValidation Study
PubMed Publisher
In one paragraph

Article in European journal of clinical nutrition, 2013. The graph could read no effect estimate from its abstract, so it casts no vote on the map. Cited by 14 papers.

0numbers the graph read from it
0cells of the map it votes in
14citing papers in PubMed
0.7field-weighted citation impact, top 28% 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

14 citing papers in PubMed, 38 citations in OpenAlex.

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  6. Resting energy expenditure of a diverse group of South African men and women.Journal of human nutrition and dietetics : the official journal of the British Dietetic Association · 2022
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  8. 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

9 authors at 2 institutions in 2 countries.

K E AglagoJoint Unit of Research in Nutrition and Food Sciences, Ibn Tofail University-CNESTEN, Rabat, Morocco.
I El Menchawy
K El Kari
A El Hamdouchi
A Barkat
R Bengueddour
N El Haloui
N Mokhtar
H Aguenaou
National Centre for Nuclear Energy, Science and Technology · MAUniversité Ibn-Tofail · MA

Funding

No grant is acknowledged in the PubMed record.

6 · The paper itself

Abstract

BACKGROUND/

objectivesAccuracy of the bioelectrical impedance analysis (BIA) depends on population-specific prediction equations. The aim of our study was to develop prediction equations for assessing total body water (TBW) and fat-free mass (FFM) in healthy North-African adults. SUBJECTS/

methodsIn all, 250 participants (194 women, 56 men) aged 18-64 years were included in the analysis. BIA variables were measured by a tetra-polar device. TBW and FFM were assessed by the dilution of deuterium (D2O). The participants were sorted by gender and randomly split into development and validation subgroups. The validity of other published equations was also tested using Bland and Altman procedure, proportional bias and pure error.

resultsThe prediction equations derived were: TBW (l)=5.68+0.267 height(2)/resistance+4.42 sex (male=1, female=0) + 0.225 weight-0.052 age (R(2)=0.92, root mean square error (RMSE)=1.75 l, RMSE%=5.65); and FFM (kg)=7.47 + 0.366 height(2)/resistance+6.04 sex + 0.306 weight-0.063 age (R(2)=0.92, RMSE=2.38 kg, RMSE%=5.61). The new equations provided nonsignificant proportional bias values, and better agreement than other tested equations. Bias and pure error values were 0.36 and 1.88 l for men and 0.00 and 1.82 l for women, for TBW equation. For FFM equation, bias values were 0.43 and -0.04 kg, and pure errors were 2.57 and 2.46  kg for men and women, respectively.

conclusionsThe new prediction equations provide reliable estimates of TBW and FFM in North-African adults and are recommended for use in these populations.

Indexed as

ArabsBlack PeopleBody CompositionBody Fluid CompartmentsBody WaterAdipose TissueAdultAfrica, NorthernBody Mass IndexDeuteriumElectric ImpedanceFemaleHumansIndicator Dilution TechniquesMaleMathematical ConceptsDeuterium

Identifiers

PMID23839666
OpenAlexW2051806032

What OpenQuestion holds

Textmetadata
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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.