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. 1998 Jul;50(1):41-4.
doi: 10.1016/s0165-0327(98)00032-9.

First episode in bipolar disorder: misdiagnosis and psychotic symptoms

A Gonzalez-Pinto  1 , M Gutierrez, F Mosquera, J Ballesteros, P Lopez, J Ezcurra, J L Figuerido, J de Leon
Affiliations

First episode in bipolar disorder: misdiagnosis and psychotic symptoms

A Gonzalez-Pinto et al. J Affect Disord. 1998 Jul.

Abstract

Background: This study explores factors that can influence other psychotic diagnoses in the first episode of a DSM-III-R bipolar disorder.

Methods: It includes all 163 bipolar in-patients and out-patients in the state of Alava, North of Spain (Basque country) from February 1994 to May 1996. Patients were divided into two non-overlapping groups: unstable diagnoses, bipolars with an initial diagnosis of schizophrenia (or other psychosis), and stable diagnoses of bipolar disorder.

Results: A logistic regression analysis using marital status, age at onset and mood incongruent psychotic symptoms found that the latter was the only independent factor significantly associated with an unstable diagnosis.

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