Evidence map›Paper›PMID 28272734›Full record

ReviewBritish journal of haematology2017

Safety and benefits of antenatal oral iron supplementation in low-income countries: a review.

Martin N Mwangi, Andrew M Prentice, Hans Verhoef

Abstract readReview
In one paragraph

Review in British journal of haematology, 2017. The graph could read no effect estimate from its abstract, so it casts no vote on the map. Cited by 34 papers, 3 of them syntheses that pooled it.

0numbers the graph read from it
0cells of the map it votes in
34citing papers in PubMed, 3 pooled it
–field-weighted citation impact
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

34 citing papers in PubMed, 3 syntheses or guidelines pooled it.

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  8. Understanding hepcidin for iron management in pregnancy.Transfusion medicine (Oxford, England) · 2025
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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

3 authors.

Martin N MwangiDivision of Human Nutrition, Wageningen University, Wageningen, The Netherlands.ORCID 0000-0002-8358-4448
Andrew M PrenticeMRC Unit The Gambia, Banjul, The Gambia.
Hans VerhoefDivision of Human Nutrition, Wageningen University, Wageningen, The Netherlands.ORCID 0000-0002-9346-9689

Funding

Medical Research Council MC_U123292699
6 · The paper itself

Abstract

The World Health Organization recommends universal iron supplementation of 30-60 mg/day in pregnancy but coverage is low in most countries. Its efficacy is uncertain, however, and there has been a vigorous debate in the last decade about its safety, particularly in areas with a high burden of malaria and other infectious diseases. We reviewed the evidence on the safety and efficacy of antenatal iron supplementation in low-income countries. We found no evidence that daily supplementation at a dose of 60 mg leads to increased maternal Plasmodium infection risk. On the other hand, recent meta-analyses found that antenatal iron supplementation provides benefits for maternal health (severe anaemia at postpartum, blood transfusion). For neonates, there was a reduced prematurity risk, and only a small or no effect on birth weight. A recent trial showed, however, that benefits of antenatal iron supplementation on maternal and neonatal health vary by maternal iron status, with substantial benefits in iron-deficient women. The benefits of universal iron supplementation are likely to vary with the prevalence of iron deficiency. As a consequence, the balance between benefits and risks is probably more favourable in low-income countries than in high-income countries despite the higher exposure to infectious pathogens.

Indexed as

Dietary SupplementsAnemia, Iron-DeficiencyDeveloping CountriesFemaleHumansIronMalariaOxidative StressPregnancyPregnancy Complications, HematologicPregnancy Complications, ParasiticPrenatal CareIronanaemiairon supplementationlow-income countriesmalariapregnancy

Identifiers

PMID28272734
PMCPMC5485170

What OpenQuestion holds

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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.