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  • Title: Childhood predictors of future psychiatric morbidity in offspring of mothers with psychotic disorder: results from the Helsinki High-Risk Study.
    Author: Niemi LT, Suvisaari JM, Haukka JK, Lönnqvist JK.
    Journal: Br J Psychiatry; 2005 Feb; 186():108-14. PubMed ID: 15684232.
    Abstract:
    BACKGROUND: The Helsinki High-Risk Study monitors women treated for schizophrenia-spectrum disorders in Helsinki mental hospitals before 1975, their offspring, and controls. AIMS: To compare the development of high-risk and control group children, and investigate which factors predicted future psychiatric disorders. METHOD: We examined information from childhood and school health record cards of 159 high-risk and 99 control group offspring. Logistic regression was used to assess whether developmental abnormalities predicted later mental disorders. RESULTS: Compared with controls, children in the high-risk group had more emotional symptoms before school age, attentional problems and social inhibition at school age, and neurological soft signs throughout. In this group pre-school social adjustment problems (OR=9.7, 95% CI 1.8-51.8) or severe neurological symptoms (Fisher's test, P=0.006) predicted future schizophrenia-spectrum disorder. Social adjustment problems and emotional symptoms during school age predicted future non-psychotic psychiatric disorders. CONCLUSIONS: Our study supports the validity of neurological, emotional, social and behavioural markers as vulnerability indicators of psychotic and other mental disorders, particularly among children genetically at high risk of psychosis.
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