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Environmental unpredictability during childhood is a significant form of adversity. This study found it linked to negative adolescent health outcomes, including mental health and behavioral issues.

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Area of Science:

  • Psychology
  • Public Health
  • Sociology

Background:

  • Childhood adversity negatively impacts lifelong health.
  • Research on environmental unpredictability as adversity is limited.
  • Unpredictability may represent a distinct pathway of risk.

Purpose of the Study:

  • To investigate environmental unpredictability as a form of childhood adversity.
  • To examine the association between unpredictability across development and adolescent outcomes.

Main Methods:

  • Utilized data from a multiethnic, longitudinal birth cohort (Future of Families and Child Wellbeing Study).
  • Assessed environmental unpredictability at ages 1, 3, 5, and 9.
  • Examined associations with adolescent outcomes at age 15.

Main Results:

  • An unpredictability index was significantly associated with increased depressive symptoms (β=0.11), anxiety symptoms (β=0.08), and delinquency (β=0.13).
  • Unpredictability also correlated with higher impulsivity (β=0.09), heavier weight categories (β=0.09), and internalizing (β=0.14), externalizing (β=0.23), and attention problems (β=0.16).

Conclusions:

  • Environmental unpredictability is a unique and significant form of childhood adversity.
  • Findings highlight the importance of stable environments for child development and long-term health.
  • Interventions addressing environmental stability may mitigate adverse health outcomes.