Schizoaffective disorder-- the reliability of its clinical diagnostic use.

Objective: Patients with psychoses often suffer from affective symptoms. The originally broad concept of schizoaffective disorder (SAD) has been significantly narrowed, transformed into a convoluted set of criteria both in the ICD-10 and DSM-IV. We examined the reliability of the clinical use of this diagnosis in university settings.
Method: All patients discharged from two university hospitals in Copenhagen in year 2002 with a diagnosis of ICD-10 SAD (n = 59) were re-evaluated using the Operational Criteria (OPCRIT) checklist expanded by additional items and applied to hospital chart material. Diagnoses were allocated by OPCRIT algorithm and by consensus of two psychiatrists.
Results: No patients fulfilled the SAD lifetime diagnosis according to DSM-IV criteria and the raters diagnosed only six patients as possible ICD-10 SAD.
Conclusion: A moratorium on the clinical use of the SAD diagnosis is suggested.