Evidence map›Paper›PMID 27798335›Full record

Trial reportThe Journal of nutrition2016

A Prenatal Multiple Micronutrient Supplement Produces Higher Maternal Vitamin B-12 Concentrations and Similar Folate, Ferritin, and Zinc Concentrations as the Standard 60-mg Iron Plus 400-μg Folic Acid Supplement in Rural Bangladeshi Women.

Shirin Ziaei, Anisur Rahman, Rubhana Raqib, Bo Lönnerdal, Eva-Charlotte Ekström

Erratum issuedOpen access · hybridAbstract readRandomized Controlled Trial
In one paragraph

Trial report in The Journal of nutrition, 2016. The graph could read no effect estimate from its abstract, so it casts no vote on the map. An erratum has been issued. Cited by 13 papers, 3 of them syntheses that pooled it.

0numbers the graph read from it
0cells of the map it votes in
13citing papers in PubMed, 3 pooled it
1.5field-weighted citation impact, top 18% 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

13 citing papers in PubMed, 3 syntheses or guidelines pooled it, 20 citations in OpenAlex.

  1. Pooled it
  2. Daily oral iron supplementation during pregnancy.The Cochrane database of systematic reviews · 2024
    Pooled it
  3. Multiple-micronutrient supplementation for women during pregnancy.The Cochrane database of systematic reviews · 2019
    Pooled it
  4. Trial
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  8. Observational
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4 · The record

Corrections and comments

5 · Who and what money

Authors and funding

5 authors at 3 institutions in 3 countries.

Shirin ZiaeiDepartment of Women's and Children's Health, Uppsala University, Uppsala, Sweden.ORCID http://orcid.org/0000-0001-5396-6624
Anisur RahmanInternational Center for Diarrheal Disease Research, Bangladesh (ICDDR,B), Dhaka, Bangladesh; and.
Rubhana RaqibInternational Center for Diarrheal Disease Research, Bangladesh (ICDDR,B), Dhaka, Bangladesh; and.
Bo LönnerdalDepartment of Nutrition, University of California, Davis, Davis, CA.
Eva-Charlotte EkströmDepartment of Women's and Children's Health, Uppsala University, Uppsala, Sweden; lotta.ekstrom@kbh.uu.se.
International Centre for Diarrhoeal Disease Research · BDUppsala University · SEUniversity of California, Davis · US

Funding

No grant is acknowledged in the PubMed record.

6 · The paper itself

Abstract

backgroundThe effects of prenatal food and micronutrient supplementation on maternal micronutrient status are not well known.

objectiveWe compared the efficacy and effectiveness of 3 different micronutrient supplements on maternal micronutrient status when combined with food supplementation.

methodsIn the MINIMat (Maternal and Infant Nutrition Intervention, Matlab) trial in Bangladesh, 4436 pregnant women were randomly assigned to daily intake of 3 types of micronutrient capsules: 30 mg Fe and 400 μg folic acid (Fe30F), 60 mg Fe and 400 μg folic acid (Fe60F), or multiple micronutrient supplements (MMNs) combined with early (week 9 of pregnancy) or usual (week 20 of pregnancy) food supplementation in a 2 by 3 factorial design. Plasma concentrations of vitamin B-12, folate, ferritin, and zinc were analyzed before the start of micronutrient supplementation (week 14) and at week 30 of pregnancy in 641 randomly selected women. An electronic monitoring device was used to measure the number of capsules taken. The effectiveness of food and micronutrient regimens as well as efficacy per capsule in maternal micronutrient status were analyzed by ANOVA and general linear models.

resultsAt week 30 of pregnancy, women in the MMN group had higher geometric mean concentrations of vitamin B-12 than women in the Fe60F group (119 compared with 101 pmol/L, respectively); no other differences in effectiveness of micronutrient and food regimens were observed. A dose-response relation between the number of capsules taken and concentrations of folate and ferritin was observed for all micronutrient supplements. Fe30F had lower efficacy per capsule in increasing ferritin concentrations within the first tertile of capsule intake than did Fe60F and MMNs. Because ferritin reached a plateau for all types of micronutrient supplements, there was no difference between the regimens in their effectiveness.

conclusionCompared with Fe60F, MMNs produced higher maternal vitamin B-12 and similar ferritin and folate concentrations in Bangladeshi women. The MINIMat trial was registered at isrctn.org as ISRCTN16581394.

Indexed as

Dietary SupplementsPrenatal Nutritional Physiological PhenomenaBangladeshDietFemaleFerritinsFolic AcidHumansIronPregnancyRural PopulationVitamin B 12ZincFerritinsFolic AcidIronVitamin B 12ZincBangladesheffectivenessefficacyferritinfolatefood supplementationmaternal micronutrient statusprenatal micronutrient supplementationvitamin B-12zinc

Identifiers

PMID27798335
PMCPMC5118763
OpenAlexW2532847501

What OpenQuestion holds

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LicenceCC BY
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Registered trials

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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.