Evidence map›Paper›PMID 33685583›Full record

SynthesiseLife2021

Heterogeneous contributions of change in population distribution of body mass index to change in obesity and underweight.

NCD Risk Factor Collaboration (NCD-RisC)

Open access · goldAbstract readMeta-Analysis
In one paragraph

Synthesis in eLife, 2021. The graph could read no effect estimate from its abstract, so it casts no vote on the map. Cited by 63 papers, 2 of them syntheses that pooled it.

0numbers the graph read from it
0cells of the map it votes in
63citing papers in PubMed, 2 pooled it
23.5field-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

63 citing papers in PubMed, 2 syntheses or guidelines pooled it, 139 citations in OpenAlex.

  1. The Impact of Sports Involvement on Body Image Perception and Ideals: A Systematic Review and Meta-Analysis.International journal of environmental research and public health · 2023
    Pooled it
  2. Physical Activity and Body Image Perception in Adolescents: A Systematic Review.International journal of environmental research and public health · 2022
    Pooled it
  3. Article
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  8. Atherogenic Dyslipidemia and Its Association withInternational journal of molecular sciences · 2025
    Article
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  11. A Modeling Study for Hip Fracture Rates in Romania.Journal of clinical medicine · 2025
    Article
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3 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

1 author at 20 institutions in 105 countries.

NCD Risk Factor Collaboration (NCD-RisC)
Imperial College London · GBTehran University of Medical Sciences · IRCenter for Non-Communicable Diseases · PKCentro de Investigación Biomédica en Red de Epidemiología y Salud Pública · ESUniversity of Southern Denmark · DKFinnish Institute for Health and Welfare · FILithuanian University of Health Sciences · LTUniversidade do Porto · PTUniversity of Copenhagen · DKFrederiksberg Hospital · DKGhent University Hospital · BEUniversidade Federal de Pelotas · BRUniversity of the West · USUniversity of Zagreb · HRPeking University · CNInstitute for Sustainable Development · ETJagiellonian University · PLUniversidade Federal do Rio Grande do Sul · BRUniversity College London · GBUniversity of Coimbra · PT

Funding

Endocrine and metabolic diseases in rural South Africa-establishing burden and improving detectionK43TW010698 · FIC · WITS HEALTH CONSORTIUM (PTY), LTD · PI WADE, ALISHA NICOLE · 2017 to 2021
$581k
FIC NIH HHS K43 TW010698Medical Research Council G0400491Medical Research Council MC_PC_21000Medical Research Council MC_PC_21001Medical Research Council MC_U147585819Medical Research Council MC_U147585824Medical Research Council MC_U147585827Medical Research Council MC_UP_A620_1014Medical Research Council MC_UP_A620_1016Medical Research Council MC_UU_00006/1Medical Research Council MC_UU_00017/1Medical Research Council MC_UU_12011/1Medical Research Council MC_UU_12011/3Medical Research Council MR/S019669/1Wellcome Trust
6 · The paper itself

Abstract

From 1985 to 2016, the prevalence of underweight decreased, and that of obesity and severe obesity increased, in most regions, with significant variation in the magnitude of these changes across regions. We investigated how much change in mean body mass index (BMI) explains changes in the prevalence of underweight, obesity, and severe obesity in different regions using data from 2896 population-based studies with 187 million participants. Changes in the prevalence of underweight and total obesity, and to a lesser extent severe obesity, are largely driven by shifts in the distribution of BMI, with smaller contributions from changes in the shape of the distribution. In East and Southeast Asia and sub-Saharan Africa, the underweight tail of the BMI distribution was left behind as the distribution shifted. There is a need for policies that address all forms of malnutrition by making healthy foods accessible and affordable, while restricting unhealthy foods through fiscal and regulatory restrictions.

Indexed as

Body Mass IndexHumansObesityPrevalenceRisk FactorsThinnessBMIepidemiologyglobal healthnoneobesityunderweight

Identifiers

PMID33685583
PMCPMC7943191
OpenAlexW3134029647

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.