Evidence map›Paper›PMID 36958788›Full record

ArticleBMJ open2023

Are there inequalities in the attendance and effectiveness of behavioural weight management interventions for adults in the UK? Protocol for an individual participant data (IPD) meta-analysis.

Jack M Birch, Julia Mueller, Stephen Sharp, Jennifer Logue, Michael P Kelly, Simon J Griffin, Amy Ahern

Open access · goldFull text read
In one paragraph

Article in BMJ open, 2023. The graph could read no effect estimate from its abstract, so it casts no vote on the map. Cited by 2 papers.

0numbers the graph read from it
0cells of the map it votes in
2citing papers in PubMed
0.8field-weighted citation impact, top 23% 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

2 citing papers in PubMed, 2 citations in OpenAlex.

  1. Trial
  2. 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

7 authors at 2 institutions in 1 country.

Jack M BirchMRC Epidemiology Unit, University of Cambridge, Cambridge, UK jack.birch@mrc-epid.cam.ac.uk.ORCID 0000-0001-6292-1647
Julia MuellerMRC Epidemiology Unit, University of Cambridge, Cambridge, UK.ORCID 0000-0002-4939-7112
Stephen SharpMRC Epidemiology Unit, University of Cambridge, Cambridge, UK.
Jennifer LogueLancaster Medical School, Lancaster University, Lancaster, UK.ORCID 0000-0001-9549-2738
Michael P KellyDepartment of Public Health and Primary Care, University of Cambridge, Cambridge, UK.
Simon J GriffinMRC Epidemiology Unit, University of Cambridge, Cambridge, UK.
Amy AhernMRC Epidemiology Unit, University of Cambridge, Cambridge, UK.
University of Cambridge · GBLancaster University · GB

Funding

Medical Research Council MC_UU_00006/6
6 · The paper itself

Abstract

introductionIt is important to identify whether behavioural weight management interventions work well across different groups in the population so health inequalities in obesity are not widened. Previous systematic reviews of inequalities in the attendance and effectiveness of behavioural weight management interventions have been limited because few trials report relevant analyses and heterogeneity in the categorisation of inequality characteristics prevents meta-analysis. An individual participant data meta-analysis (IPD-MA) allows us to reanalyse all trials with available data in a uniform way. We aim to conduct an IPD meta-analysis of UK randomised controlled trials to examine whether there are inequalities in the attendance and effectiveness of behavioural weight interventions. METHODS AND ANALYSIS: In a recently published systematic review, we identified 17 UK-based randomised controlled trials of primary care-relevant behavioural interventions, conducted in adults living with overweight or obesity and reporting weight outcomes at baseline and 1-year follow-up. The corresponding author of each trial will be invited to contribute data to the IPD-MA. The outcomes of interest are weight at 12-months and intervention attendance (number of sessions offered vs number of sessions attended). We will primarily consider whether there is an interaction between intervention group and characteristics where inequalities occur, such as by gender/sex, socioeconomic status or age. The IPD-MA will be conducted in line with the Preferred Reporting Items for Systematic Reviews and Meta-analyses of IPD guidelines. ETHICS AND DISSEMINATION: No further ethical approval was required as ethical approval for each individual study was obtained by the original trial investigators from appropriate ethics committees. The completed IPD-MA will be disseminated at conferences, in a peer-reviewed journal and contribute to the lead author's PhD thesis. Investigators of each individual study included in the final IPD-MA will be invited to collaborate on any publications that arise from the project.

Indexed as

ObesityOverweightAdultBehavior TherapyHumansMeta-Analysis as TopicUnited KingdomPREVENTIVE MEDICINEPRIMARY CAREPUBLIC HEALTH

Identifiers

PMID36958788
PMCPMC10039995
OpenAlexW4360613234

What OpenQuestion holds

Textfull text, public
LicenceCC BY
measurements read4
identifiers read1
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.