Cited by 116Obesity, Physical Activity, DietSchizophrenia research and treatmentEating Disorders and Behaviors

Lifestyle Interventions for Weight Management in People With Serious Mental Illness: A Systematic Review With Meta-Analysis, Trial Sequential Analysis, and Meta-Regression Analysis Exploring the Mediators and Moderators of Treatment Effects

Speyer, Helene, Jakobsen, Ane Storch, Westergaard, Casper, Nørgaard, Hans Christian Brix, Pisinger, Charlotta, Krogh, Jesper, Hjorthøj, Carsten, Nordentoft, Merete +3 more·2019·Psychotherapy and Psychosomatics

Abstract

Background: Serious mental illness (SMI) reduces life expectancy, primarily due to somatic comorbidity linked to obesity. Meta-analyses have found beneficial effects of lifestyle interventions in people with SMI and recommended their implementation to manage obesity. Objective: The objective of this systematic review was to assess the benefits and harms of individualized lifestyle interventions for weight in people diagnosed with SMI and to explore potential mediators and moderators of the effect. Methods: The protocol was registered at PROSPERO (CRD42016049093). Randomized clinical trials (RCTs) assessing the effect of individualized lifestyle interventions on weight management in people with SMI were included. Primary outcomes were differences in endpoint body mass index (BMI) and the proportion achieving clinically relevant weight loss (≥5%). Secondary outcomes included quality of life, cardiometabolic risk factors, and adverse effects. Results: We included 41 RCTs (n = 4,267). All trials were at high risk of bias according to the Cochrane Handbook for Systematic Reviews of Interventions. The experimental interventions reduced the mean difference in BMI by –0.63 kg/m2 (95% confidence interval [CI] = –1.02 to –0.23; p = 0.002; I2 = 70.7%) compared to the control groups. At postintervention follow-up (17 RCTs), the effect size remained similar but was no longer significant (BMI = –0.63 kg/m2; 95% CI = –1.30 to 0.04; p = 0.07; I2 = 48.8%). The risk ratio for losing ≥5% of baseline weight was 1.51 (95% CI = 1.07–2.13; p = 0.02) compared to the control groups. GRADE showed very low or low quality of evidence. Conclusion: There is a statistically significant, but clinically insignificant, mean effect of individualized lifestyle interventions for weight reduction in people with SMI.

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Crossref · 10.1159/000502293

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  • The magnitude of weight reduction is similar to the magnitude of weight lost from lifestyle interventions and by adding topiramate or metformin to current antipsychotic medication.

    “On the other hand, the magnitude is similar to the magnitude of weight lost from lifestyle interventions (79, 80) and by adding topiramate or metformin to current antipsychotic medication, all being recommended in clinical guidelines (81).”

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Authors
Speyer, H., Jakobsen, A. S., Westergaard, C., Nørgaard, H. C. B., Pisinger, C., Krogh, J., Hjorthøj, C., Nordentoft, M., Gluud, C., Correll, C. U., & Jørgensen, K. B.
Affiliations
  • Copenhagen University Hospital (DK)
  • Aarhus University Hospital (DK)
  • Glostrup Hospital (DK)
  • Northwell Health (US)
Venue
Psychotherapy and Psychosomatics
Publisher
S. Karger AG
Published
2019
Volume
88
Issue
6
Pages
350-362
ISSN
  • 0033-3190 (ISSN-L)
  • 1423-0348
OpenAlex
W2972525214
Cited by
116
References
13
Citations by year
2026: 13 · 2025: 23 · 2024: 20 · 2023: 19 · 2022: 18 · 2021: 10 · 2020: 11 · 2019: 2
FWCI
1.66
Type
journal article
Language
en
Update notices
erratum (2019-09-13)
Open access
closed
Locations
  • Psychotherapy and Psychosomatics (publishedVersion)
  • PubMed (publishedVersion)
  • Research at the University of Copenhagen (University of Copenhagen) (submittedVersion)
  • Scopus (Elsevier) (submittedVersion)
  • University of Southern Denmark Research Portal (University of Southern Denmark) (submittedVersion)
Topics
  • Health Sciences › Medicine › Public Health, Environmental and Occupational Health › Obesity, Physical Activity, Diet
  • Health Sciences › Medicine › Psychiatry and Mental health › Schizophrenia research and treatment
  • Social Sciences › Psychology › Clinical Psychology › Eating Disorders and Behaviors
Keywords
severe mental illness, lifestyle intervention, weight management, obesity, body mass index, weight loss, cardiometabolic risk factors, quality of life, personalized interventions
MeSH terms
Mental Disorders, Humans, Life Style, Obesity, Quality of Life, Regression Analysis, Antipsychotic Agents, Weight Gain, Randomized Controlled Trials as Topic, Risk Reduction Behavior

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