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ABSTRACT: Background
Basic symptoms, defined as subjectively perceived disturbances in thought, perception and other essential mental processes, have been established as a predictor of psychotic disorders. However, the relationship between basic symptoms and family history of a transdiagnostic range of severe mental illness, including major depressive disorder, bipolar disorder and schizophrenia, has not been examined.Aims
We sought to test whether non-severe mood disorders and severe mood and psychotic disorders in parents is associated with increased basic symptoms in their biological offspring.Method
We measured basic symptoms using the Schizophrenia Proneness Instrument - Child and Youth Version in 332 youth aged 8-26 years, including 93 offspring of control parents, 92 offspring of a parent with non-severe mood disorders, and 147 offspring of a parent with severe mood and psychotic disorders. We tested the relationships between parent mental illness and offspring basic symptoms in mixed-effects linear regression models.Results
Offspring of a parent with severe mood and psychotic disorders (B = 0.69, 95% CI 0.22-1.16, P = 0.004) or illness with psychotic features (B = 0.68, 95% CI 0.09-1.27, P = 0.023) had significantly higher basic symptom scores than control offspring. Offspring of a parent with non-severe mood disorders reported intermediate levels of basic symptoms, that did not significantly differ from control offspring.Conclusions
Basic symptoms during childhood are a marker of familial risk of psychopathology that is related to severity and is not specific to psychotic illness.Declaration of interest
None.
SUBMITTER: Zwicker A
PROVIDER: S-EPMC6582212 | biostudies-literature | 2019 Jun
REPOSITORIES: biostudies-literature
Zwicker Alyson A MacKenzie Lynn E LE Drobinin Vladislav V Howes Vallis Emily E Patterson Victoria C VC Stephens Meg M Cumby Jill J Propper Lukas L Abidi Sabina S Bagnell Alexa A Schultze-Lutter Frauke F Pavlova Barbara B Alda Martin M Uher Rudolf R
BJPsych open 20190613 4
<h4>Background</h4>Basic symptoms, defined as subjectively perceived disturbances in thought, perception and other essential mental processes, have been established as a predictor of psychotic disorders. However, the relationship between basic symptoms and family history of a transdiagnostic range of severe mental illness, including major depressive disorder, bipolar disorder and schizophrenia, has not been examined.<h4>Aims</h4>We sought to test whether non-severe mood disorders and severe mood ...[more]