Childhood negative experiences and subclinical psychosis in adolescence: a longitudinal general population study

Abstract

Abstract Background: Accumulating evidence suggests that experiences of trauma and victimization during childhood are associated with an increased risk to develop clinical and subclinical psychosis in adulthood. A recent cross‐sectional study showed a significant association between trauma and psychotic experiences in adolescents. The current study aimed to extend these findings by investigating the longitudinal effects of negative life experiences on the risk for subclinical psychotic symptoms 2 years later in an adolescent general community sample. Methods: Data were derived from the standard health screenings of the Youth Health Care Divisions of the Public Health Services, in the South of the Netherlands. A total of 1129 adolescents filled out a self‐report questionnaire at age 13/14 years and 2 years later (15/16 years), assessing psychotic experiences, as well as experiences of being bullied, sexual trauma, and negative life events. Results: Logistic regression analyses revealed that sexual trauma increased the risk for psychotic symptoms 2 years later. Life events contributed to the risk for psychosis over time and psychosis in turn gave rise to new life events. No significant association with bullying was found after controlling for confounders. Conclusion: The results provide further evidence for an association between childhood environment and psychosis in the crucial developmental period of early adolescence. Early and later psychological stress, if severe, may impact on the risk for psychosis in adolescence through mechanisms of person–environment interaction and correlation.

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