Parental communication and psychosis: a meta-analysis

Area of Science:

• Psychiatry
• Genetics
• Developmental Psychology

Background:

• Parental communication deviance (CD) is a proposed risk factor for psychosis in genetically vulnerable individuals.
• Previous studies suggest a link between CD and psychosis, but findings have not been quantitatively synthesized.
• Understanding CD's prevalence is crucial for psychosis risk assessment.

Purpose of the Study:

• To quantitatively synthesize existing research on the prevalence of communication deviance in parents of psychotic patients.
• To assess the magnitude of the association between parental CD and offspring psychosis.
• To explore factors influencing the observed prevalence rates.

Main Methods:

• Systematic literature search of PsycINFO, PubMed, EMBASE, and Web of Science databases.
• Inclusion of 20 studies encompassing 1753 parents of psychotic patients.
• Meta-analysis to calculate pooled effect size and assess heterogeneity.

Main Results:

• A large pooled effect size (g = 0.97) indicates a high prevalence of CD in parents of psychotic offspring.
• Significant heterogeneity was observed (I² = 46.47%), suggesting variability across studies.
• Sensitivity and subgroup analyses confirmed the robustness of the findings across methodological and demographic variations.

Conclusions:

• Communication deviance is a highly prevalent characteristic in parents of individuals with psychosis.
• This supports the role of CD as a potential G × E (gene-environment) interaction factor in psychosis development.
• Further research into CD is warranted to explore its developmental mechanisms and clinical utility.