Evidence map›Paper›PMID 35011064›Full record

ArticleNutrients2021

Consumption of Vitamin-A-Rich Foods and Vitamin A Supplementation for Children under Two Years Old in 51 Low- and Middle-Income Countries.

Omar Karlsson, Rockli Kim, Andreas Hasman, S V Subramanian

Open access · goldAbstract read
In one paragraph

Article in Nutrients, 2021. The graph could read no effect estimate from its abstract, so it casts no vote on the map. Cited by 13 papers.

0numbers the graph read from it
0cells of the map it votes in
13citing papers in PubMed
0.8field-weighted citation impact, top 29% 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, 15 citations in OpenAlex.

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  5. High-dose vitamin C as a metabolic treatment of cancer: a new dimension in the era of adjuvant and intensive therapy.Clinical & translational oncology : official publication of the Federation of Spanish Oncology Societies and of the National Cancer Institute of Mexico · 2025
    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

4 authors at 2 institutions in 3 countries.

Omar KarlssonTakemi Program in International Health, Harvard T.H. Chan School of Public Health, Harvard University, Boston, MA 02115, USA.
Rockli KimDivision of Health Policy & Management, College of Health Science, Korea University, Seongbuk-gu, Seoul 02841, Korea.
Andreas HasmanUNICEF Programme Division, New York, NY 10017, USA.
S V SubramanianHarvard Center for Population and Development Studies, Harvard University, Cambridge, MA 02138, USA.ORCID 0000-0003-2365-4165
Harvard University · USUnited Nations Children's Fund · US

Funding

United Nations Children's Fund 43310134
6 · The paper itself

Abstract

Vitamin A supplementation for children 6-59 months old is an important intervention that boosts immune function, especially where children do not consume enough vitamin-A-rich foods. However, the low coverage of vitamin A supplementation is a persistent problem in low- and middle-income countries. We first estimated the percentage of children 6-23 months old receiving the minimum dietary diversity, vitamin-A-rich foods, and vitamin A supplementation, and second, the difference in the percentage receiving vitamin A supplementation between children 6-23 months old and children 24-59 months old using nationally representative cross-sectional household surveys, namely, the Demographic and Health Surveys, conducted from 2010 to 2019 in 51 low- and middle-income countries. Overall, 22% (95% CI: 22, 23) of children received the minimum dietary diversity, 55% (95% CI: 54, 55) received vitamin-A-rich foods, 59% (95% CI: 58, 59) received vitamin A supplementation, and 78% (95% CI: 78, 79) received either vitamin-A-rich foods or supplementation. A wide variation across countries was observed; for example, the percentage of children that received either vitamin-A-rich foods or supplementation ranged from 53% (95% CI: 49, 57) in Guinea to 96% (95% CI: 95, 97) in Burundi. The coverage of vitamin A supplementation should be improved, especially for children 6-23 months old, in most countries, particularly where the consumption of vitamin-A-rich foods is inadequate.

Indexed as

DietBurundiChild Nutritional Physiological PhenomenaChild, PreschoolCross-Sectional StudiesDietary SupplementsFemaleHealth SurveysHumansIncomeInfantMaleNutritional StatusPovertyRural PopulationSocioeconomic FactorsVitamin Achild nutritiondietary diversitylow- and middle-income countriesvitamin-A-rich foodsvitamin A supplements

Identifiers

PMID35011064
PMCPMC8747127
OpenAlexW4206183746

What OpenQuestion holds

Textmetadata
LicenceCC BY
Read underepoch 390

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.