Evidence map›Paper›PMID 33692144›Full record

SynthesisBMJ global health2021

Severe malnutrition or famine exposure in childhood and cardiometabolic non-communicable disease later in life: a systematic review.

Kelsey Grey, Gerard Bryan Gonzales, Mubarek Abera, Natasha Lelijveld, Debbie Thompson, Melkamu Berhane, Alemseged Abdissa, Tsinuel Girma, Marko Kerac

Open access · goldAbstract readSystematic Review
In one paragraph

Synthesis in BMJ global health, 2021. The graph could read no effect estimate from its abstract, so it casts no vote on the map. Cited by 97 papers, 5 of them syntheses that pooled it.

0numbers the graph read from it
0cells of the map it votes in
97citing papers in PubMed, 5 pooled it
14.8field-weighted citation impact, top 1% 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

97 citing papers in PubMed, 5 syntheses or guidelines pooled it, 173 citations in OpenAlex.

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37 more citing papers are in PubMed but not listed here.

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

9 authors at 5 institutions in 4 countries.

Kelsey GreyPopulation Health, London School of Hygiene & Tropical Medicine, London, UK kelsey.grey@alumni.lshtm.ac.uk.ORCID 0000-0002-8980-9396
Gerard Bryan GonzalesDivision of Human Nutrition and Health, Wageningen University, Wageningen, Netherlands.
Mubarek AberaDepartment of Psychiatry, Jimma University, Jimma, Ethiopia.
Natasha LelijveldEmergency Nutrition Network, Kidlington, Oxfordshire, UK.
Debbie ThompsonCaribbean Institute for Health Research, University of the West Indies, Kingston, Jamaica.
Melkamu BerhaneDepartment of Pediatrics and Child Health, Jimma University, Jimma, Ethiopia.
Alemseged AbdissaArmauer Hansen Research Institute, Addis Ababa, Ethiopia.
Tsinuel GirmaDepartment of Pediatrics and Child Health, Jimma University, Jimma, Ethiopia.
Marko KeracPopulation Health, London School of Hygiene and Tropical Medicine, London, UK.ORCID 0000-0002-3745-7317
Jimma University · ETLondon School of Hygiene & Tropical Medicine · GBArmauer Hansen Research Institute · ETUniversity of the West Indies · JMWageningen University & Research · NL

Funding

Medical Research Council MR/T008628/1Medical Research Council MR/V000802/1
6 · The paper itself

Abstract

introductionChild malnutrition (undernutrition) and adult non-communicable diseases (NCDs) are major global public health problems. While convincing evidence links prenatal malnutrition with increased risk of NCDs, less is known about the long-term sequelae of malnutrition in childhood. We therefore examined evidence of associations between postnatal malnutrition, encompassing documented severe childhood malnutrition in low/middle-income countries (LMICs) or famine exposure, and later-life cardiometabolic NCDs.

methodsOur peer-reviewed search strategy focused on 'severe childhood malnutrition', 'LMICs', 'famine', and 'cardiometabolic NCDs' to identify studies in Medline, Embase, Global Health, and the Cumulative Index to Nursing and Allied Health Literature (CINAHL) databases. We synthesised results narratively and assessed study quality with the UK National Institute for Health and Care Excellence checklist.

resultsWe identified 57 studies of cardiometabolic NCD outcomes in survivors of documented severe childhood malnutrition in LMICs (n=14) and historical famines (n=43). Exposure to severe malnutrition or famine in childhood was consistently associated with increased risk of cardiovascular disease (7/8 studies), hypertension (8/11), impaired glucose metabolism (15/24) and metabolic syndrome (6/6) in later life. Evidence for effects on lipid metabolism (6/11 null, 5/11 mixed findings), obesity (3/13 null, 5/13 increased risk, 5/13 decreased risk) and other outcomes was less consistent. Sex-specific differences were observed in some cohorts, with women consistently at higher risk of glucose metabolism disorders and metabolic syndrome.

conclusionSevere malnutrition or famine during childhood is associated with increased risk of cardiometabolic NCDs, suggesting that developmental plasticity extends beyond prenatal life. Severe malnutrition in childhood thus has serious implications not only for acute morbidity and mortality but also for survivors' long-term health. Heterogeneity across studies, confounding by prenatal malnutrition, and age effects in famine studies preclude firm conclusions on causality. Research to improve understanding of mechanisms linking postnatal malnutrition and NCDs is needed to inform policy and programming to improve the lifelong health of severe malnutrition survivors.

Indexed as

Cardiovascular DiseasesMalnutritionNoncommunicable DiseasesAdultChildFamineFemaleHumansMalePovertyPregnancycardiovascular diseasediabeteskwashiorkormarasmusnutritional and metabolic disorders

Identifiers

PMID33692144
PMCPMC7949429
OpenAlexW3133793336

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.