Evidence map›Paper›PMID 34320177›Full record

ArticleThe American journal of clinical nutrition2021

Impact of scaling up prenatal nutrition interventions on human capital outcomes in low- and middle-income countries: a modeling analysis.

Nandita Perumal, Mia M Blakstad, Günther Fink, Mark Lambiris, Lilia Bliznashka, Goodarz Danaei, Christopher R Sudfeld

Erratum issuedOpen access · hybridAbstract read
In one paragraph

Article in The American journal of clinical nutrition, 2021. 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 10 papers, 1 of them a synthesis that pooled it.

0numbers the graph read from it
0cells of the map it votes in
10citing papers in PubMed, 1 pooled it
1.9field-weighted citation impact, top 16% 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, 1 synthesis or guideline pooled it, 25 citations in OpenAlex.

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4 · The record

Corrections and comments

5 · Who and what money

Authors and funding

7 authors at 3 institutions in 2 countries.

Nandita PerumalDepartment of Global Health and Population, Harvard T.H. Chan School of Public Health, Boston, MA, USA.
Mia M BlakstadDepartment of Global Health and Population, Harvard T.H. Chan School of Public Health, Boston, MA, USA.
Günther FinkDepartment of Epidemiology and Public Health, Swiss Tropical and Public Health Institute, Basel, Switzerland.
Mark LambirisDepartment of Epidemiology and Public Health, Swiss Tropical and Public Health Institute, Basel, Switzerland.
Lilia BliznashkaDepartment of Global Health and Population, Harvard T.H. Chan School of Public Health, Boston, MA, USA.ORCID 0000-0002-2671-0786
Goodarz DanaeiDepartment of Global Health and Population, Harvard T.H. Chan School of Public Health, Boston, MA, USA.
Christopher R SudfeldDepartment of Global Health and Population, Harvard T.H. Chan School of Public Health, Boston, MA, USA.
Harvard Global Health Institute · USHarvard University · USSwiss Tropical and Public Health Institute · CH

Funding

CIHR
6 · The paper itself

Abstract

backgroundPrenatal nutrition interventions can lead to improved birth outcomes, which in turn are associated with better education and human capital outcomes later in life.

objectiveWe estimated the impact of scaling up iron-folic acid (IFA), calcium, multiple micronutrient (MMS), and balanced energy protein (BEP) supplementation for pregnant women, on human capital outcomes in low- and middle-income countries (LMIC).

methodsWe used mathematical modeling with proportional reductions in adverse birth outcomes to estimate the potential gains in school years and lifetime income due to scaling up each prenatal nutrition intervention. Estimates of intervention effects on birth outcomes were derived from meta-analyses of randomized trials. Estimates of the associations between birth outcomes and schooling and lifetime income were derived from de novo meta-analyses of observational studies.

resultsAcross 132 LMIC, scaling up prenatal nutrition interventions to 90% coverage was estimated to increase school years and lifetime income per birth cohort by: 2.28 million y (95% uncertainty intervals (UI): -0.44, 6.26) and $8.26 billion (95% UI: -1.60, 22.4) for IFA; 4.08 million y (95% UI: 0.12, 9.68) and $18.9 billion (95% UI: 0.59, 44.6) for calcium; 5.02 million y (95% UI: 1.07, 11.0) and $18.1 billion (95% UI: 3.88, 39.1) for MMS; and 0.53 million y (95% UI: -0.49, 1.70) and $1.34 billion (95% UI: -1.10, 3.10 billion) for BEP supplementation. South Asia and Sub-Saharan Africa tended to have the largest estimated regional gains in school years for scaling up each intervention due to the large population size and high burden of poor birth outcomes. Absolute income benefits for each intervention were estimated to be the largest in Latin America, where returns to education and incomes are higher relative to other regions.

conclusionIncreasing coverage of prenatal nutrition interventions in LMIC may lead to substantial gains in schooling and lifetime income. Decision makers should consider the potential long-term human capital returns of investments in maternal nutrition.

Indexed as

Prenatal Nutritional Physiological PhenomenaDeveloping CountriesDietary SupplementsEducationFemaleFolic AcidHumansIncomeMicronutrientsModels, TheoreticalPregnancyFolic AcidMicronutrientsbalanced energy proteincalciumhuman capitalincomeiron-folic acidmultiple micronutrientsprenatal nutrition interventionsschooling

Identifiers

PMID34320177
PMCPMC8574629
OpenAlexW3184078383

What OpenQuestion holds

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LicenceCC BY
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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.