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Child maltreatment, adaptive functioning, and polygenic risk: A structural equation mixture model.

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Child maltreatment significantly impacts adaptive functioning. Genetic factors also play a role, interacting with environmental influences on child development and behavior.

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Area of Science:

  • Developmental Psychology
  • Behavioral Genetics
  • Child Psychiatry

Background:

  • Child maltreatment is a significant risk factor for adverse developmental outcomes.
  • Understanding the interplay between genetic predispositions and environmental exposures is crucial for child mental health.
  • Adaptive functioning encompasses prosocial, antisocial, withdrawn, and depressive behaviors.

Purpose of the Study:

  • To investigate the associations between child maltreatment, polygenic risk, and adaptive functioning.
  • To identify distinct developmental trajectories based on behavioral indicators.
  • To examine potential gene-environment interactions in shaping adaptive functioning.

Main Methods:

  • A structural equation mixture model was employed.
  • Latent class analysis was used to identify behavioral profiles in 1,004 children (aged 6-13).
  • A weighted polygenic risk score was calculated from twelve genetic variants.

Main Results:

  • Four distinct behavioral classes emerged: well-adjusted, externalizing, internalizing, and socially dominant.
  • Significant main effects of maltreatment on adaptive functioning were observed.
  • Evidence for a small but significant gene-environment interaction effect was found.

Conclusions:

  • Child maltreatment has a substantial impact on adaptive functioning across different behavioral profiles.
  • Genetic risk, in conjunction with environmental factors like maltreatment, influences child adaptive functioning.
  • These findings highlight the complex interplay of genetic and environmental factors in child development.