• Med. J. Aust. · Oct 2022

    Review Meta Analysis

    Peer-facilitated interventions for improving the physical health of people with schizophrenia spectrum disorders: systematic review and meta-analysis.

    • Alexandria Coles, Kateryna Maksyutynska, Dunja Knezevic, Sri Mahavir Agarwal, Gillian Strudwick, James A Dunbar, Benjamin Druss, Peter Selby, Michelle Banfield, Margaret K Hahn, and David Castle.
    • Centre for Complex Interventions, Centre for Addiction and Mental Health, Toronto, Canada.
    • Med. J. Aust. 2022 Oct 2; 217 Suppl 7: S22-S28.

    ObjectivesTo evaluate the efficacy of peer-facilitated interventions for improving the physical health of people with schizophrenia spectrum disorders.Study DesignSystematic review and random effects meta-analysis of peer-facilitated interventions for people with serious mental illness, including schizophrenia spectrum disorders, in which physical health outcomes were assessed.Data SourcesMEDLINE, PsycINFO, EMBASE, CINAHL, Web of Science, Scopus, CENTRAL, and PubMed. In addition, reference lists of reviews were examined for further relevant studies published to 10 November 2021.Data SynthesisWe included fourteen publications (thirteen randomised controlled trials of ten peer-facilitated interventions, and one secondary analysis; total of 2099 participants) that assessed physical health outcomes for people with mental health conditions, including schizophrenia spectrum disorders. Intervention duration ranged from three to eighteen months; peers were involved as sole or co-leaders of the programs in group or individual sessions. Meta-analysis identified a statistically significant pooled effect on physical activity and capacity (various measures; six studies; 468 intervention, 461 control participants; standardised mean difference, +0.19 standard deviation [SD]; 95% CI, +0.06-0.32 SD; I2  = 0%); overall GRADE certainty of evidence was low. Marked study heterogeneity precluded secure conclusions regarding intervention effects on self-rated physical health, healthy eating, and body mass index.ConclusionsPeer-facilitated interventions for improving physical outcomes are feasible for people with schizophrenia spectrum disorders, a group at particular risk of certain physical health conditions. Further research is required to assess the effects of such interventions on other health-related parameters.Prospero RegistrationCRD42021283578 (retrospective).© 2022 AMPCo Pty Ltd.

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