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Schizophr Res. 2013 May;146(1-3):103-10. doi: 10.1016/j.schres.2013.01.029. Epub 2013 Mar 7.

Premorbid impairments in early-onset psychosis: differences between patients with schizophrenia and bipolar disorder.

Author information

1
Child and Adolescent Psychiatry and Psychology Unit, Hospital Universitario Marques de Valdecilla, Santander, Spain. bpaya@humv.es

Abstract

BACKGROUND:

Despite the large body of research on premorbid impairments in schizophrenia, studies comparing different early-onset psychoses are scarce.

AIMS:

To examine premorbid impairments in first episodes of early-onset bipolar and schizophrenia disorders.

METHOD:

We compared premorbid adjustment and other premorbid variables such as IQ and developmental abnormalities in a cohort of children and adolescents (N=69) with bipolar disorder (BP) or schizophrenia (SZ) experiencing their first psychotic episode and in a healthy control group (N=91).

RESULTS:

Schizophrenia patients showed more social impairment in childhood than bipolar patients (p<0.05) and healthy controls (p<0.001) and had higher rates of developmental abnormalities (p<0.05) than healthy controls. Between childhood and early adolescence, schizophrenia and bipolar patients showed a greater decline in academic adjustment than healthy controls, more specifically in adaptation to school (p<0.01).

CONCLUSIONS:

Early-onset schizophrenia patients show more early social impairment than early-onset bipolar patients. Intellectual premorbid abnormalities are less specific and probably more linked to early-onset psychosis.

PMID:
23465966
DOI:
10.1016/j.schres.2013.01.029
[Indexed for MEDLINE]
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