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Cost-effectiveness of nidotherapy for comorbid personality disorder and severe mental illness: randomized controlled trial

Published online by Cambridge University Press:  11 April 2011

Maja Ranger ,
Peter Tyrer ,
Katerina Miloseska ,
Hannalie Fourie ,
Ibrahim Khaleel ,
Bernard North  and
Barbara Barrett
Maja Ranger
Affiliation:
Department of Psychological Medicine
Peter Tyrer*
Affiliation:
Department of Psychological Medicine
Katerina Miloseska
Affiliation:
Central North West London Trust
Hannalie Fourie
Affiliation:
Central North West London Trust
Ibrahim Khaleel
Affiliation:
Central North West London Trust
Bernard North
Affiliation:
Statistical Advisory Service, Imperial College, London SW7 2AZ (United Kingdom)
Barbara Barrett
Affiliation:
Centre for the Economics of Mental Health, Institute of Psychiatry (United Kingdom)
*
Professor P. Tyrer, Department of Psychological Medicine, Imperial College, St Dunstan's Road, London W6 8RP (United Kingdom). E-mail: p.tyrer@imperial.ac.uk
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Summary

Aims – Nidotherapy is the systematic modification of the environment to create a better fit for people. This is the first randomized controlled trial of its efficacy in an assertive community team. Methods – Patients in an assertive outreach team with continued management problems together with comorbid personality disturbance and severe mental illness were randomized to nidotherapy enhanced assertive treatment (up to 12 sessions) or to continued assertive outreach care. Use of psychiatric beds over one years (primary outcome) and change from base-line in other health service resources, psychiatric symptoms, social functioning and engagement with services were measured at 6 and 12 months (secondary outcomes). Results – 52 patients were recruited over 13 months, with 49 and 37 assessed at 6 and 12 months. Patients referred to nidotherapy had a 63% reduction in hospital bed use after one year compared with control assertive care (P=0.13) and showed non-significant improvement in psychiatric symptoms, social functioning and engagement than the control group. The mean cost savings for each patient allocated to nidotherapy was £4,112 per year, mainly as a consequence of reduced psychiatric bed use. Conclusion – Nidotherapy may be a cost-effective option in the management of comorbid serious mental illness and personality disorder, but larger confirmatory trials are necessary.

Keywords

nidotherapyassertive outreachrandomised trialcost-effectiveness.
Type
Original Articles
Information
Epidemiology and Psychiatric Sciences , Volume 18 , Issue 2 , June 2009 , pp. 128 - 136
Copyright
Copyright © Cambridge University Press 2009

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