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BMC Public Health
Published in: BMC Public Health 1/2019

Open Access 01-12-2019 | Obesity | Research article

Randomised controlled trial and economic evaluation of a task-based weight management group programme

Authors: Hayden McRobbie, Peter Hajek, Sarrah Peerbux, Brennan C. Kahan, Sandra Eldridge, Dominic Trépel, Steve Parrott, Chris Griffiths, Sarah Snuggs, Katie Myers Smith

Published in: BMC Public Health | Issue 1/2019

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Abstract

Background

Obesity is a rising global threat to health and a major contributor to health inequalities. Weight management programmes that are effective, economical and reach underprivileged groups are needed. We examined whether a multi-modal group intervention structured to cater for clients from disadvantaged communities (Weight Action Programme; WAP) has better one-year outcomes than a primary care standard weight management intervention delivered by practice nurses (PNI).

Methods

In this randomised controlled trial, 330 obese adults were recruited from general practices in London and allocated (2:1) to WAP (N = 221) delivered over eight weekly group sessions or PNI (N = 109) who received four sessions over eight weeks. Both interventions covered diet, physical activity and self-monitoring. The primary outcome was the change in weight from baseline at 12 months. To indicate value to the NHS, a cost effectiveness analysis estimated group differences in cost and Quality-Adjusted Life-Years (QALYs) related to WAP.

Results

Participants were recruited from September 2012 to January 2014 with follow-up completed in February 2015. Most participants were not in paid employment and 60% were from ethnic minorities. 88% of participants in each study arm provided at least one recorded outcome and were included in the primary analysis. Compared with the PNI, WAP was associated with greater weight loss overall (− 4·2 kg vs. − 2·3 kg; difference = − 1·9 kg, 95% CI: -3·7 to − 0·1; P = 0·04) and was more likely to generate a weight loss of at least 5% at 12 months (41% vs. 27%, OR = 14·61 95% CI: 2·32 to 91·96, P = 0·004). With an incremental cost-effectiveness ratio (ICER) of £7742/QALY, WAP would be considered highly cost effective compared to PNI.

Conclusions

The task-based programme evaluated in this study can provide a template for an effective and economical approach to weight management that can reach clients from disadvantaged communities.

Trial registration

ISRCTN ISRCTN45820471. Registered 12/10/2012 (retrospectively registered).
Appendix
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Metadata
Title
Randomised controlled trial and economic evaluation of a task-based weight management group programme
Authors
Hayden McRobbie
Peter Hajek
Sarrah Peerbux
Brennan C. Kahan
Sandra Eldridge
Dominic Trépel
Steve Parrott
Chris Griffiths
Sarah Snuggs
Katie Myers Smith
Publication date
01-12-2019
Publisher
BioMed Central
Keywords
Obesity
Obesity
Published in
BMC Public Health / Issue 1/2019
Electronic ISSN: 1471-2458
DOI
https://doi.org/10.1186/s12889-019-6679-3

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