A Longitudinal Study of Premorbid IQ Score and Risk of Developing Schizophrenia,Bipolar Disorder, Severe Depression, and Other Nonaffective Psychoses | Zendy

Stanley Zammit | Zendy; Peter Allebeck | Zendy; Anthony S. David | Zendy; Christina Dalman | Zendy; Tomas Hemmingsson | Zendy; Ingrid E. Lundberg | Zendy; Glyn Lewis | Zendy

Open Access

A Longitudinal Study of Premorbid IQ Score and Risk of Developing Schizophrenia,Bipolar Disorder, Severe Depression, and Other Nonaffective Psychoses

Author(s) -

Stanley Zammit,

Peter Allebeck,

Anthony S. David,

Christina Dalman,

Tomas Hemmingsson,

Ingrid E. Lundberg,

Glyn Lewis

Publication year - 2004

Publication title -

archives of general psychiatry

Language(s) - English

Resource type - Journals

eISSN - 1538-3636

pISSN - 0003-990X

DOI - 10.1001/archpsyc.61.4.354

Subject(s) - bipolar disorder , schizophrenia (object oriented programming) , psychiatry , depression (economics) , psychology , population , clinical psychology , confounding , medicine , cognition , environmental health , economics , macroeconomics

Longitudinal studies indicate that a lower IQ score increases risk of schizophrenia. Preliminary evidence suggests there is no such effect for nonpsychotic bipolar disorder. To our knowledge, there are no prior population-based, longitudinal studies of premorbid IQ score and risk of developing severe depression requiring hospital admission.

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