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Effectiveness of one-to-one peer support for patients with severe mental illness – a randomised controlled trial

Published online by Cambridge University Press:  23 March 2020

C.I. Mahlke ,
S. Priebe ,
K. Heumann ,
A. Daubmann ,
K. Wegscheider  and
T. Bock
C.I. Mahlke*
Affiliation:
Center for Psychosocial Medicine, University Medical Center Hamburg Eppendorf Martinistr. 52, 20249Hamburg, Germany
S. Priebe
Affiliation:
Queen Mary University of London, Unit for Social and Community Psychiatry (WHO Collaborating Centre for Mental Health Service Development), Newham Centre for Mental Health, E13 8SPLondon, United Kingdom
K. Heumann
Affiliation:
Center for Psychosocial Medicine, University Medical Center Hamburg Eppendorf Martinistr. 52, 20249Hamburg, Germany
A. Daubmann
Affiliation:
University Medical Center Hamburg Eppendorf, Department of Medical Biometry and Epidemiology Martinistr. 52, Hamburg, 20249Germany
K. Wegscheider
Affiliation:
University Medical Center Hamburg Eppendorf, Department of Medical Biometry and Epidemiology Martinistr. 52, Hamburg, 20249Germany
T. Bock
Affiliation:
Center for Psychosocial Medicine, University Medical Center Hamburg Eppendorf Martinistr. 52, 20249Hamburg, Germany
*
*Corresponding author. Tel.: +49 0 40 74105 8933; fax: +49 0 40 74105 55455. E-mail address:c.mahlke@uke.de (C.I. Mahlke).
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Abstract

Background

One-to-one peer support is a resource-oriented approach for patients with severe mental illness. Existing trials provided inconsistent results and commonly have methodological shortcomings, such as poor training and role definition of peer supporters, small sample sizes, and lack of blinded outcome assessments.

Methods

This is a randomised controlled trial comparing one-to-one peer support with treatment as usual. Eligible were patients with severe mental illnesses: psychosis, major depression, bipolar disorder or borderline personality disorder of more than two years’ duration. A total of 216 patients were recruited through in- and out-patient services from four hospitals in Hamburg, Germany, with 114 allocated to the intervention group and 102 to the control group. The intervention was one-to-one peer support, delivered by trained peers and according to a defined role specification, in addition to treatment as usual over the course of six months, as compared to treatment as usual alone. Primary outcome was self-efficacy measured on the General Self-Efficacy Scale at six-month follow-up. Secondary outcomes included quality of life, social functioning, and hospitalisations.

Results

Patients in the intervention group had significantly higher scores of self-efficacy at the six-month follow-up. There were no statistically significant differences on secondary outcomes in the intention to treat analyses.

Conclusions

The findings suggest that one-to-one peer support delivered by trained peer supporters can improve self-efficacy of patients with severe mental disorders over a one-year period. One-to-one peer support may be regarded as an effective intervention. Future research should explore the impact of improved self-efficacy on clinical and social outcomes.

Keywords

Peer supportSevere mental disorderSocial and cross-cultural psychiatry
Type
Original article
Information
European Psychiatry , Volume 42 , May 2017 , pp. 103 - 110
Copyright
Copyright © European Psychiatric Association 2017

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