ArticleBMJ open2026
Evaluation of a group-based behavioural intervention (PROGROUP) versus usual care for weight management in adults with severe obesity: protocol for a randomised controlled trial with cost-consequence analysis and primary care implementation study.
Article in BMJ open, 2026. The graph could read no effect estimate from its abstract, so it casts no vote on the map. Not yet cited in PubMed.
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.
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.
Who cites it
0 citing papers in PubMed.
No citing paper in PubMed yet.
Corrections and comments
PubMed lists nothing against this paper. Absence here is not a guarantee, only a check that was made.
Authors and funding
31 authors.
Funding
Abstract
introductionApproximately 15 million people in the UK live with obesity and at least 5 million of these are people with severe obesity (PWSO). Severe obesity significantly compromises health, well-being and quality of life and reduces life expectancy. These adverse outcomes are prevented or ameliorated by weight loss, for which sustained behavioural change is the cornerstone of treatment. Several studies suggest the potential of group-based intervention in Specialist Weight Management Services (SWMS), but PWSO remain underrepresented in research, and evidence on optimal design and outcomes is limited. The success of the PROGROUP feasibility randomised controlled trial (RCT) (ISRCTN22088800) informed the development of this study and additional adjustments have been made in response to the rollout of obesity management medication in the National Health Service (NHS). This study aims to assess the effectiveness and cost-effectiveness of PROGROUP in SWMS and primary care. METHODS AND ANALYSIS: The RCT will be conducted in SWMS, alongside an implementation study in primary care. The RCT will recruit cohorts of 30 participants to be randomised 1:1 within-cohort to PROGROUP (intervention) or usual care (control). The implementation arm will recruit cohorts of 15 to PROGROUP. The primary objectives for the study are to undertake a process evaluation and economic evaluation of PROGROUP in the RCT and to assess its implementation in primary care. Baseline data and outcome differences at 6 months will be analysed. These will include weight, other clinical measures and patient-reported outcomes, including social and life-satisfaction measures. ETHICS AND DISSEMINATION: This study is approved by an NHS Research Ethics Committee (REC reference: 23/WS/0101). Results will be reported in a manuscript that will be submitted to a peer-reviewed medical journal as open access. A lay summary of the findings will be published online, and participants and sites will be signposted to this. TRIAL REGISTRATION NUMBER: ISRCTN13721429.
Indexed as
Identifiers
What OpenQuestion holds
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.