A Systematic Review of the Effectiveness of Group versus Individual Treatments for Adult Obesity

Paul-Ebhohimhen, Virginia; Avenell, Alison

doi:10.1159/000186144

Cited by 174Obesity, Physical Activity, DietPharmacology and Obesity TreatmentObesity and Health Practices

A Systematic Review of the Effectiveness of Group versus Individual Treatments for Adult Obesity

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Paul-Ebhohimhen, Virginia, Avenell, Alison·2009·Obesity Facts

DOI 10.1159/000186144PMC PMC6444750

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Abstract

BACKGROUND: Both group and individual modes of delivery are employed for obesity treatments. Commercial weight loss groups commonly employ group-based delivery, while many clinical based settings employ one-to-one delivery. We systematically reviewed randomised controlled trials of treatments for adult obesity to compare the effectiveness of group-based to individual-based modes of treatment delivery. METHODS: We searched 7 electronic databases and 2 journals and reviewed secondary references, based on a priori criteria to systematically review: randomised controlled trials of obesity treatments, participants with BMI >or=28 kg/m(2), age >or=18 years, comparison groups including at least 1 group-based and 1 individual-based treatment group, and follow-up >or=1 year. We extracted data and conducted meta-analysis of weight change. RESULTS: Eleven comparison groups from 5 qualifying trials were obtained, representing a total participant pool of 336. Significantly greater (p = 0.03) weight change at 12 months was found in group-based over individualbased treatment, and sub-analyses showed that increased effectiveness was associated with the use of financial reward and psychologist-led interventions. CONCLUSION: Group-based interventions were more effective than individual-based interventions among a predominantly female participant pool receiving psychologist-led interventions. Future studies to explore differences by professional group and interventions among men, which are accompanied by economic evaluation, are recommended.

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Authors: Paul-Ebhohimhen, V., & Avenell, A.
Affiliations: University of Aberdeen (GB)
ORCID: Avenell, Alison
Venue: Obesity Facts
Publisher: S. Karger AG
Published: 2009
Volume: 2
Issue: 1
Pages: 17-24
ISSN: 1662-4025 (ISSN-L)
1662-4033
DOI: 10.1159/000186144
PMC: PMC6444750
OpenAlex: W1987185279
Cited by: 174
References: 25
Citations by year: 2026: 6 · 2025: 7 · 2024: 8 · 2023: 4 · 2022: 19 · 2021: 11 · 2020: 11 · 2019: 11 · 2018: 14 · 2017: 11 · 2016: 7 · 2015: 16 · 2014: 16 · 2013: 16 · 2012: 7
FWCI: 5.35
Type: journal article
Language: en
Open access: green
www.ncbi.nlm.nih.gov
Licence: www.karger.com/Services/SiteLicenses (vor)
www.karger.com/Services/SiteLicenses (tdm)
Locations: Obesity Facts (publishedVersion)
Europe PMC (PubMed Central) (publishedVersion)
PubMed Central (publishedVersion)
PubMed (publishedVersion)
Topics: Health Sciences › Medicine › Public Health, Environmental and Occupational Health › Obesity, Physical Activity, Diet
Health Sciences › Medicine › Pharmacology › Pharmacology and Obesity Treatment
Health Sciences › Health Professions › Pharmacy › Obesity and Health Practices
Keywords: adult obesity, group intervention, individual-based interventions, weight loss, monetary rewards, weight change
MeSH terms: Adult, Aged, Behavior Therapy, Diet, Dietetics, Female, Humans, Life Style, Male, Middle Aged, Obesity, Social Support, Weight Loss, Body Mass Index, Randomized Controlled Trials as Topic, Treatment Outcome

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A Systematic Review of the Effectiveness of Group versus Individual Treatments for Adult Obesity

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