Familial and socioeconomic contributions to premorbid functioning in psychosis: Impact on age at onset and treatment response
Open Access
- 1 January 2020
- journal article
- research article
- Published by Royal College of Psychiatrists in European Psychiatry
- Vol. 63 (1), 1-31
- https://doi.org/10.1192/j.eurpsy.2020.41
Abstract
Background. Premorbid adjustment (PA) abnormalities in psychotic disorders are associated with an earlier age at onset (AAO) and unfavorable clinical outcomes, including treatment resistance. Prior family studies suggest that familial liability, likely reflecting increased genetic risk, and socioeconomic status (SES) contribute to premorbid maladjustment. However, their joint effect possibly indicating gene-environment interaction has not been evaluated. Methods. We examined whether family history of psychosis (FHP) and parental SES may predict PA and AAO in unrelated cases with first-episode psychosis (n = 108) and schizophrenia (n = 104). Premorbid academic and social functioning domains during childhood and early adolescence were retrospectively assessed. Regression analyses were performed to investigate main effects of FHP and parental SES, as well as their interaction. The relationships between PA, AAO, and response to antipsychotic medication were also explored. Results. Positive FHP associated with academic PA difficulties and importantly interacted with parental SES to moderate social PA during childhood (interaction p = 0.024). Positive FHP and parental SES did not predict differences in AAO. Nevertheless, an earlier AAO was observed among cases with worse social PA in childhood (beta = -0.20; p = 0.005) and early adolescence (beta = -0.19; p = 0.007). Further, confirming evidence emerged for an association between deficient childhood social PA and poor treatment response (p = 0.04). Conclusions. Familial risk for psychosis may interact with parental socioeconomic position influencing social PA in childhood. In addition, this study supports the link between social PA deviations, early psychosis onset, and treatment resistance, which highlights premorbid social functioning as a promising clinical indicator.This publication has 80 references indexed in Scilit:
- Differences in developmental changes in academic and social premorbid adjustment between males and females with schizophreniaSchizophrenia Research, 2013
- Diagnostic specificity of poor premorbid adjustment: Comparison of schizophrenia, schizoaffective disorder, and mood disorder with psychotic featuresSchizophrenia Research, 2012
- Neuropsychological evidence for abnormal neurodevelopment associated with early-onset psychosesPsychological Medicine, 2012
- Family history of psychosis negatively impacts age at onset, negative symptoms, and duration of untreated illness and psychosis in first-episode psychosis patientsPsychiatry Research, 2012
- Differential patterns of premorbid social and academic deterioration in deficit and nondeficit schizophreniaSchizophrenia Research, 2012
- Introduction: The Extended Psychosis Phenotype--Relationship With Schizophrenia and With Ultrahigh Risk Status for PsychosisSchizophrenia Bulletin, 2012
- The Premorbid Adjustment Scale as a measure of developmental compromise in patients with schizophrenia and their healthy siblingsSchizophrenia Research, 2009
- Premorbid functioning of patients with first-episode nonaffective psychosis: A comparison of deterioration in academic and social performance, and clinical correlates of Premorbid Adjustment Scale scoresSchizophrenia Research, 2008
- Socioeconomic Status at Birth Is Associated With Risk of Schizophrenia: Population-Based Multilevel StudySchizophrenia Bulletin, 2006
- The diagnostic interview for psychoses (DIP): development, reliability and applicationsPsychological Medicine, 2005