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Identifying active ingredients in complex behavioural interventions for obese adults with obesity-related co-morbidities or additional risk factors for co-morbidities: a systematic review

Lookup NU author(s): Dr Stephan Dombrowski, Professor Falko Sniehotta, Professor Vera Araujo-SoaresORCiD


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Reducing obesity is an important preventive strategy for people who are at increased risk of major disabling or life-threatening conditions. Behavioural treatments for obesity are complex and involve several components aiming to facilitate behaviour change. Systematic reviews need to assess the components that moderate intervention effects. Electronic databases and journals were searched for randomised controlled trials of behavioural interventions targeting dietary and/or physical activity change for obese adults (mean BMI ≥30, mean age ≥40 years) with risk factors and follow-up data ≥12 weeks. A reliable taxonomy of theory-congruent behaviour change techniques (BCTs; Abraham & Michie, 2008) was used to identify programme components. Meta-regression suggested that increasing numbers of identified BCTs are not necessarily associated with better outcomes. The BCTs provision of instructions (β=-2.69, p=0.02), self-monitoring (β=-3.37, p<0.001), relapse prevention (β=-2.63, p=0.02) and prompting practice (β=-3.63, p<0.001) could be linked to more successful interventions. Studies including more BCTs aimed at dietary change that are congruent with Control Theory were associated with greater weight loss (β=-1.13, p=0.04). Post-hoc ratings of intervention components in published trials can lead to the identification of components and theories for behaviour change practice and research.

Publication metadata

Author(s): Dombrowski SU, Sniehotta FF, Avenell A, Johnston M, MacLennan G, Araujo-Soares V

Publication type: Article

Publication status: Published

Journal: Health Psychology Review

Year: 2012

Volume: 6

Issue: 1

Pages: 7-32

Print publication date: 13/12/2010

ISSN (print): 1743-7199

ISSN (electronic): 1743-7202

Publisher: Psychology Press


DOI: 10.1080/17437199.2010.513298


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