Evidence map›Paper›PMID 28770094›Full record

ArticleBMC hematology2017

Diagnostic utility of zinc protoporphyrin to detect iron deficiency in Kenyan preschool children: a community-based survey.

Emily M Teshome, Andrew M Prentice, Ayşe Y Demir, Pauline E A Andang'o, Hans Verhoef

Registry-linked trialOpen access · hybridAbstract read
In one paragraph

Article in BMC hematology, 2017. The graph could read no effect estimate from its abstract, so it casts no vote on the map. It is linked to trial NCT02073149 (Comparison of Home Fortification With Two Iron Formulations in Kenyan Children Protected Against Malaria by Artemisinin-based Combination Therapy), which is not on this map. Cited by 9 papers.

0numbers the graph read from it
0cells of the map it votes in
9citing papers in PubMed
1.3field-weighted citation impact, top 19% 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.

NCT02073149 phase2 / phase3completednot on this map

Comparison of Home Fortification With Two Iron Formulations in Kenyan Children Protected Against Malaria by Artemisinin-based Combination Therapy: a Placebo-controlled Non-inferiority Trial

TypeinterventionalSponsorLondon School of Hygiene and Tropical MedicineRan2014 to 2014Enrolled338ConditionsAnaemiaArmsLow-dose iron as NaFeEDTA, Conventional dose iron as ferrous salt, Placebo
3 · Its place in the literature

Who cites it

9 citing papers in PubMed, 14 citations in OpenAlex.

  1. Trial
  2. Trial
  3. Article
  4. Review
  5. Article
  6. Endogenous zinc protoporphyrin formation critically contributes to hemorrhagic stroke-induced brain damage.Journal of cerebral blood flow and metabolism : official journal of the International Society of Cerebral Blood Flow and Metabolism · 2021
    Article
  7. Observational
  8. Assessment of iron deficiency.Haematologica · 2018
    Article
  9. 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 4 institutions in 4 countries.

Emily M TeshomeMRCG Keneba at MRC Unit The Gambia, PO Box 273, Banjul, The Gambia.
Andrew M PrenticeMRCG Keneba at MRC Unit The Gambia, PO Box 273, Banjul, The Gambia.
Ayşe Y DemirMeander Medical Centre, Laboratory for Clinical Chemistry, Maatweg 3, 3813 TZ, Amersfoort, Netherlands.
Pauline E A Andang'oSchool of Public Health and Community Development, Maseno University, Private Bag, Maseno, Kenya.
Hans VerhoefMRCG Keneba at MRC Unit The Gambia, PO Box 273, Banjul, The Gambia.
MRC Unit the Gambia · GMLondon School of Hygiene & Tropical Medicine · GBMaseno University · KEMeander Medisch Centrum · NL

Funding

Medical Research Council MC_U123292699
6 · The paper itself

Abstract

backgroundZinc protoporphyrin (ZPP) has been used to screen and manage iron deficiency in individual children, but it has also been recommended to assess population iron status. The diagnostic utility of ZPP used in combination with haemoglobin concentration has not been evaluated in pre-school children. We aimed to a) identify factors associated with ZPP in children aged 12-36 months; b) assess the diagnostic performance and utility of ZPP, either alone or in combination with haemoglobin, to detect iron deficiency.

methodsWe used baseline data from 338 Kenyan children enrolled in a community-based randomised trial. To identify factors related to ZZP measured in whole blood or erythrocytes, we used bivariate and multiple linear regression analysis. To assess diagnostic performance, we excluded children with elevated plasma concentrations of C-reactive protein or

resultsWhole blood ZPP and erythrocyte ZPP were independently associated with haemoglobin concentration,

conclusionsIn young children, whole blood ZPP and erythrocyte ZPP have added diagnostic value in detecting iron deficiency compared to haemoglobin concentration alone. A single diagnostic score based on haemoglobin concentration and whole blood ZPP can rule out iron deficiency in a substantial proportion of children screened.

trial registrationClinicalTrials.gov NCT02073149 (25 February 2014).

Indexed as

ChildErythrocyte protoporphyrinInflammationIron deficiencyKenyaMalariaPlasmodiumPreschoolZinc protoporphyrin

Identifiers

PMID28770094
PMCPMC5532779
OpenAlexW2739540417

What OpenQuestion holds

Textmetadata
LicenceCC BY
Read underepoch 390

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.