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Gender differences in response to an opportunistic brief intervention for obesity in primary care: data from the BWeL trial

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journal contribution
posted on 16.11.2020, 11:33 authored by Kate Tudor, Sarah Tearne, Susan A Jebb, Amanda Lewis, Peymane Adab, Rachna Begh, Kate Jolly, Amanda DaleyAmanda Daley, Amanda Farley, Deborah Lycett, Alecia Nickless, Paul Aveyard
Weight loss programmes appeal mainly to women, prompting calls for gender-specific programmes. In the United Kingdom, general practitioners (GPs) refer nine times as many women as men to community weight loss programmes. GPs endorsement and offering programmes systematically could reduce this imbalance. In this trial, consecutively attending patients in primary care with obesity were invited and 1882 were enrolled and randomized to one of two opportunistic 30-second interventions to support weight loss given by GPs in consultations unrelated to weight. In the support arm, clinicians endorsed and offered referral to a weight loss programme and, in the advice arm, advised that weight loss would improve health. Generalized linear mixed effects models examined whether gender moderated the intervention. Men took effective weight loss action less often in both arms (support: 41.6% vs 60.7%; advice: 12.1% vs 18.3%; odds ratio (OR) = 0.38, 95% confidence interval (CI), 0.27, 0.52, P < .001) but there was no evidence that the relative effect differed by gender (interaction P = .32). In the support arm, men accepted referral and attended referral less often, 69.3% vs 82.4%; OR = 0.48, 95% CI, 0.35, 0.66, P < .001 and 30.4% vs 47.6%; OR = 0.48, 95% CI, 0.36, 0.63, P < .001, respectively. Nevertheless, the gender balance in attending weight loss programmes closed to 1.6:1. Men and women attended the same number of sessions (9.7 vs 9.1 sessions, P = .16) and there was no evidence weight loss differed by gender (6.05 kg men vs 4.37 kg women, P = .39). Clinician-delivered opportunistic 30-second interventions benefits men and women equally and reduce most of the gender imbalance in attending weight loss programmes.

Funding

A randomised controlled trial to test the effectiveness of a brief intervention for weight management for obese adults in primary care.

Medical Research Council

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NIHR Oxford Biomedical Research Centre and CLAHRC Oxford

NIHR Oxford Biomedical Research Centre

History

School

  • Sport, Exercise and Health Sciences

Published in

Clinical Obesity

Volume

11

Issue

1

Publisher

John Wiley & Sons Ltd on behalf of World Obesity Federation

Version

VoR (Version of Record)

Rights holder

© The Authors

Publisher statement

This is an Open Access Article. It is published by Elsevier under the Creative Commons Attribution 4.0 International Licence (CC BY 4.0). Full details of this licence are available at: https://doi.org/10.1111/cob.12418

Acceptance date

02/09/2020

Publication date

2020-10-07

Copyright date

2021

ISSN

1758-8103

eISSN

1758-8111

Language

en

Depositor

Prof Amanda Daley. Deposit date: 13 November 2020

Article number

e12418