title: [A computer algorithm for diagnostic assessment with DSM-III in the early course of schizophrenic diseases].
abstract: The purpose of the computer algorithm described here is the evaluation of diagnostic criteria according to DSM-III for schizophrenia and schizophreniform disorders. It also dates the first time point of the assessment of these diagnoses. The necessary information comes from a semistructured interview, called IRAOS (Interview for the Retrospective Assessment of the Onset of Schizophrenia). With this interview early indicators of a beginning schizophrenia can be evaluated in their chronological order and their type of course. The algorithm was first used in a sample of patients admitted for the first time with a diagnosis of either schizophrenia or paranoid psychosis. One third of these patients fulfills the DSM-III-criterion of a duration of at least six months. The other patients fulfill criterion B of a schizophreniform disorder. To strengthen the validity of a diagnosis including the criteria A up to E successively, the sample is reduced to 70%. The average time point of the first assessment of the diagnosis by the computer algorithm is about 1.5 years before the index-admission. Together with the IRAOS the computer algorithm allows an operationalized assessment of the real onset of schizophrenia.
authors.affiliation: Arbeitsgruppe Schizophrenieforschung, Zentralinstitut für Seelische Gesundheit, Mannheim.
authors.forename: W
authors.initials: W
authors.lastname: Löffler
authors.forename: B
authors.initials: B
authors.lastname: Fätkenheuer
authors.forename: M
authors.initials: M
authors.lastname: Hambrecht
authors.forename: K
authors.initials: K
authors.lastname: Maurer
authors.forename: A
authors.initials: A
authors.lastname: Riecher-Rössler
authors.forename: H
authors.initials: H
authors.lastname: Häfner
mesh_terms: D000328:Adult; D000465:Algorithms; D003936:Diagnosis, Computer-Assisted / Q000295:instrumentation*; D005260:Female; D006801:Humans; D008297:Male; D010259:Paranoid Disorders / Q000145:classification / Q000175:diagnosis* / Q000523:psychology; D011569:Psychiatric Status Rating Scales / Q000295:instrumentation*; D011594:Psychometrics; D011618:Psychotic Disorders / Q000145:classification / Q000175:diagnosis* / Q000523:psychology; D012559:Schizophrenia / Q000145:classification / Q000175:diagnosis*; D012565:Schizophrenic Psychology; D012984:Software
vernacular_title: Ein Computer-Algorithmus zur Diagnosevergabe nach DSM-III im frühen Verlauf schizophrener Erkrankungen.