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Related Experiment Videos

Rationale and design. PRiSM Psychosis Study I

G Thornicroft1, G Strathdee, M Phelan

  • 1Section of Community Psychiatry (PRiSM), Institute of Psychiatry, London.

The British Journal of Psychiatry : the Journal of Mental Science
|February 2, 1999
PubMed
Summary

The PRiSM Psychosis Study investigated if community mental health team benefits translate to routine care. Findings suggest patient characteristics in this psychosis study are representative of the broader population.

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Area of Science:

  • Psychiatry
  • Mental Health Services Research
  • Epidemiology

Background:

  • The PRiSM Psychosis Study aimed to evaluate the effectiveness of community mental health teams in routine clinical settings.
  • It addressed whether observed benefits from experimental studies can be replicated in ordinary practice and assessed potential dilution of these benefits.
  • The study also investigated the associated costs of implementing these services.

Purpose of the Study:

  • To determine if the treatment gains from community mental health teams in experimental settings can be achieved in routine clinical practice.
  • To assess if the benefits of these services are diminished when applied in everyday clinical settings.
  • To evaluate the cost-effectiveness of community mental health services for psychosis.

Main Methods:

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  • A prospective, non-randomized controlled trial was conducted in two phases: case identification and patient interviews.
  • All prevalent cases of psychosis in two catchment areas were identified (1991-1992), with 514 patients identified.
  • 302 patients were randomly allocated for interviews, including a clinician and carer, at two time points, two years apart.

Main Results:

  • This paper details the socio-demographic, clinical, and ethnic profiles of the patients involved in the study.
  • The characteristics of the interviewed patients were analyzed to understand their representativeness.

Conclusions:

  • The patients with psychosis interviewed in the PRiSM Psychosis Study accurately represent the entire patient population identified through epidemiological methods.
  • This finding supports the generalizability of the study's results to the wider population with psychosis receiving community mental health services.