Author:
Ruggeri Mirella,Leese Morven,Thornicroft Graham,Bisoffi Giulia,Tansella Michele
Abstract
BackgroundThere is little consistency in how severe mental illness (SMI) is defined in practice, and no operational definitions.AimsTo test two operationalised definitions, based on the National Institute of Mental Health (1987) definition: the first uses three criteria (diagnosis of psychosis; duration of service contact ≥ 2 years; GAF score ≤ 50), the second only the last two.MethodAnnual prevalence rates of SMI in two European catchment areas for each criterion and the criteria combined were calculated.ResultsThe first definition produced rates of 2.55 and 1.34/1000 in London and Verona, respectively; the second permitted an additional 0.98/1000 non-psychotic disorders to be included in Verona.ConclusionsThe three-dimensional definition selects a small group of patients with SMI who have psychotic disorders. The two-dimensional approach allows estimates of SMI prevalence rates which include all forms of mental disorder.
Publisher
Royal College of Psychiatrists
Subject
Psychiatry and Mental health
Cited by
391 articles.
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