Evidence map›Paper›PMID 33783281›Full record

SynthesisAnnals of medicine2021

Estimating the prevalence of overweight and obesity in Nigeria in 2020: a systematic review and meta-analysis.

Davies Adeloye, Janet O Ige-Elegbede, Martinsixtus Ezejimofor, Eyitayo O Owolabi, Nnenna Ezeigwe, Chiamaka Omoyele, Rex G Mpazanje, Mary T Dewan, Emmanuel Agogo, Muktar A Gadanya and 4 more

Registry-linked trialOpen access · goldAbstract readMeta-AnalysisSystematic Review
In one paragraph

Synthesis in Annals of medicine, 2021. The graph could read no effect estimate from its abstract, so it casts no vote on the map. It is linked to trial NCT06773299 (ENhancing Intergenerational HeAlth in Nigeria), which is not on this map. Cited by 39 papers, 4 of them syntheses that pooled it.

0numbers the graph read from it
0cells of the map it votes in
39citing papers in PubMed, 4 pooled it
16.1field-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.

NCT06773299 naactive not recruitingnot on this mapstarted 2025, after this paper: background citation

ENhancing Intergenerational HeAlth in Nigeria: Peripartum as Critical Life StagE for CardioVascular Health

TypeinterventionalSponsorWashington University School of MedicineRan2025 to 2028Enrolled1,000ConditionsHypertension in Pregnancy, Hypertension, Obesity and Overweight, Maternal Morbidity and MortalityArmsPAT+HEALTH curriculum - Nigeria
3 · Its place in the literature

Who cites it

39 citing papers in PubMed, 4 syntheses or guidelines pooled it, 103 citations in OpenAlex.

  1. Pooled it
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  11. Comprehending the Epidemiology and Aetiology of Childhood Obesity: Integrating Life Course Approaches for Prevention and Intervention.Diabetes therapy : research, treatment and education of diabetes and related disorders · 2025
    Review
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  16. Prevalence of Liver Steatosis Among Workers in Ouagadougou and Associated Factors: A Cross-Sectional Study.JGH open : an open access journal of gastroenterology and hepatology · 2024
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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

14 authors at 12 institutions in 6 countries.

Davies AdeloyeCentre for Global Health, Usher Institute, University of Edinburgh, Edinburgh, UK.ORCID 0000-0003-1316-8139
Janet O Ige-ElegbedeCentre for Public Health and Wellbeing, School of Health and Social Wellbeing, University of the West of England, Bristol, UK.
Martinsixtus EzejimoforDivision of Health Sciences, University of Warwick, Coventry, UK.
Eyitayo O OwolabiCentre for Global Surgery, Department of Global Health, Stellenbosch University, Tygerberg, South Africa.
Nnenna EzeigweFederal Ministry of Health, Abuja, Nigeria.
Chiamaka OmoyeleFederal Ministry of Health, Abuja, Nigeria.
Rex G MpazanjeNigeria Country Office, World Health Organization, Abuja, Nigeria.
Mary T DewanNigeria Country Office, World Health Organization, Abuja, Nigeria.
Emmanuel AgogoResolve to Save Lives, Abuja, Nigeria.
Muktar A GadanyaDepartment of Community Medicine, Aminu Kano Teaching Hospital, Bayero University, Kano, Nigeria.
Wondimagegnehu AlemuInternational health Consultancy, Atlanta, GA, USA.
Michael O HarhayDepartment of Biostatistics, Epidemiology and Informatics, University of Pennsylvania Perelman School of Medicine, Philadelphia, PA, USA.
Asa AutaSchool of Pharmacy and Biomedical Sciences, University of Central Lancashire, Preston, UK.
Akindele O AdebiyiCollege of Medicine, University of Ibadan, Ibadan, Nigeria.
Federal Ministry of Health · NGWorld Health Organization - Nigeria · NG21c Consultancy (United Kingdom) · GBAminu Kano Teaching Hospital · NGCentre for Global Health Research · CASave the Children · BDStellenbosch University · ZAUniversity of Ibadan · NGUniversity of Lancashire · GBUniversity of Pennsylvania · USUniversity of the West of England · GBUniversity of Warwick · GB

Funding

World Health Organization 001
6 · The paper itself

Abstract

backgroundTargeted public health response to obesity in Nigeria is relatively low due to limited epidemiologic understanding. We aimed to estimate nationwide and sub-national prevalence of overweight and obesity in the adult Nigerian population.

methodsMEDLINE, EMBASE, Global Health, and Africa Journals Online were systematically searched for relevant epidemiologic studies in Nigeria published on or after 01 January 1990. We assessed quality of studies and conducted a random-effects meta-analysis on extracted crude prevalence rates. Using a meta-regression model, we estimated the number of overweight and obese persons in Nigeria in the year 2020.

resultsFrom 35 studies (

conclusionsOur findings suggest a high prevalence of overweight and obesity in Nigeria. This is marked in urban Nigeria and among women, which may in part be due to widespread sedentary lifestyles and a surge in processed food outlets, largely reflective of a trend across many African settings.KEY MESSAGESAbout 12 million persons in Nigeria were estimated to be obese in 2020, with prevalence considerably higher among women. Nutritional and epidemiological transitions driven by demographic changes, rising income, urbanization, unhealthy lifestyles, and consumption of highly processed diets appear to be driving an obesity epidemic in the country.

Indexed as

AdolescentAdultAgedBody Mass IndexFemaleHumansMaleMiddle AgedNigeriaObesityOverweightPrevalenceRural PopulationUrban PopulationWaist CircumferenceYoung AdultepidemiologyNigerianon-communicable diseasesObesityoverweightprevalence

Identifiers

PMID33783281
PMCPMC8018557
OpenAlexW3140563066

What OpenQuestion holds

Textmetadata
LicenceCC BY
Read underepoch 390

Registered trials

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.