Evidence map›Paper›PMID 38749693›Full record

ArticleBMJ open2024

Body mass index and all-cause mortality in HUNT and UK biobank studies: revised non-linear Mendelian randomisation analyses.

Stephen Burgess, Yi-Qian Sun, Ang Zhou, Christopher Buck, Amy M Mason, Xiao-Mei Mai

Abstract read
In one paragraph

Article in BMJ open, 2024. The graph could read no effect estimate from its abstract, so it casts no vote on the map. Cited by 14 papers.

0numbers the graph read from it
0cells of the map it votes in
14citing papers in PubMed
–field-weighted citation impact
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

14 citing papers in PubMed.

  1. Effect of Time-Restricted Eating on Metabolic Adaptation in Adults With Severe Obesity During Early Phase of Weight Loss.Journal of human nutrition and dietetics : the official journal of the British Dietetic Association · 2026
    Trial
  2. Article
  3. Observational
  4. Article
  5. Article
  6. Article
  7. Introduction to Mendelian randomization.Annals of clinical epidemiology · 2025
    Article
  8. Article
  9. Genetically Predicted Body Mass Index and Mortality in Chronic Obstructive Pulmonary Disease.American journal of respiratory and critical care medicine · 2024
    Article
  10. Article
  11. Article
  12. Article
  13. Article
  14. Article
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

6 authors.

Stephen BurgessMRC Biostatistics Unit, University of Cambridge, Cambridge, UK sb452@medschl.cam.ac.uk.ORCID 0000-0001-5365-8760
Yi-Qian SunDepartment of Clinical and Molecular Medicine (IKOM), Norges teknisk-naturvitenskapelige universitet, Trondheim, Norway.ORCID 0000-0002-9634-9236
Ang ZhouMRC Biostatistics Unit, University of Cambridge, Cambridge, UK.
Christopher BuckMRC Biostatistics Unit, University of Cambridge, Cambridge, UK.
Amy M MasonCardiovascular Epidemiology Unit, Department of Public Health and Primary Care, University of Cambridge, Cambridge, UK.
Xiao-Mei MaiDepartment of Public Health and Nursing, Norwegian University of Science and Technology, Trondheim, Norway.ORCID 0000-0002-0426-7496

Funding

Wellcome Trust 100114
6 · The paper itself

Abstract

objectivesTo estimate the shape of the causal relationship between body mass index (BMI) and mortality risk in a Mendelian randomisation framework.

designMendelian randomisation analyses of two prospective population-based cohorts.

settingIndividuals of European ancestries living in Norway or the UK.

participants56 150 participants from the Trøndelag Health Study (HUNT) in Norway and 366 385 participants from UK Biobank recruited by postal invitation. OUTCOMES: All-cause mortality and cause-specific mortality (cardiovascular, cancer, non-cardiovascular non-cancer).

resultsA previously published non-linear Mendelian randomisation analysis of these data using the residual stratification method suggested a J-shaped association between genetically predicted BMI and mortality outcomes with the lowest mortality risk at a BMI of around 25 kg/m

conclusionThis research challenges findings from previous conventional observational epidemiology and Mendelian randomisation investigations that the lowest level of mortality risk is at a BMI level of around 25 kg/m

Indexed as

Body Mass IndexMendelian Randomization AnalysisAdultAgedBiological Specimen BanksCardiovascular DiseasesCause of DeathFemaleHumansMaleMiddle AgedMortalityNeoplasmsNorwayProspective StudiesRisk FactorsEPIDEMIOLOGYGENETICSObesityObservational Study

Identifiers

PMID38749693
PMCPMC11097829

What Socratic 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 Socratic graph.