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Related Experiment Video

Updated: May 29, 2025

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Parental alcohol use disorder (AUD) remission offers mixed results for offspring. Remission may increase offspring AUD risk in European Americans but is linked to earlier drinking in African Americans, showing complex genetic and social influences.

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Area of Science:

  • Genetics and Behavior
  • Psychiatry
  • Public Health

Background:

  • Parental alcohol use disorder (AUD) is a significant risk factor for offspring psychopathology.
  • Understanding the impact of parental AUD remission on offspring outcomes is crucial for prevention and intervention strategies.
  • Genetic and sociocultural factors may influence the intergenerational transmission of AUD.

Purpose of the Study:

  • To investigate how parental AUD remission influences offspring alcohol use trajectories.
  • To examine differences in these associations based on continental ancestry (European American vs. African American).
  • To explore the role of parental AUD status and remission in offspring age at first drink, AUD onset, and remission.

Main Methods:

  • Utilized self-report data from the Collaborative Study on the Genetics of Alcoholism (COGA) (n=2244 offspring).
  • Employed time-varying Cox models to assess associations between parental AUD/remission and offspring outcomes.
  • Adjusted for polygenic risk scores for problematic alcohol use (PGSPAU) and stratified analyses by European American (EA) and African American (AA) ancestry.

Main Results:

  • In European Americans (EA), maternal AUD remission was linked to increased offspring AUD risk.
  • In African Americans (AA), parental AUD remission was associated with earlier offspring drinking, with maternal remission effects varying by adolescent living situation.
  • Paternal AUD remission, but not maternal, heightened offspring AUD onset risk in AA; parental status did not predict offspring remission in either group.

Conclusions:

  • Parental AUD remission shows limited and mixed evidence for mitigating offspring risk, varying by ancestry and sex.
  • These findings underscore the complex interplay between parental AUD status, remission, and offspring alcohol-related behaviors.
  • Sociocultural factors and genetic predispositions contribute to nuanced intergenerational patterns of alcohol use disorder.