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Proximal relationships between PTSD and drinking behavior.

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Women with PTSD symptoms, particularly intrusive and avoidance behaviors, are more likely to drink alcohol. Daily coping self-efficacy influences this relationship, impacting alcohol use disorder (AUD) comorbidity.

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Area of Science:

  • Psychology
  • Psychiatry
  • Neuroscience

Background:

  • Co-occurring Post-Traumatic Stress Disorder (PTSD) and Alcohol Use Disorders (AUD) are prevalent and severe.
  • Cross-sectional studies limit understanding of the dynamic relationship between PTSD and alcohol consumption.
  • Event-level analyses offer insights into proximal connections between PTSD symptoms and drinking behaviors.

Purpose of the Study:

  • To investigate the daily associations between specific PTSD symptoms and alcohol use in women.
  • To examine the moderating role of daily coping self-efficacy in the PTSD-drinking relationship.

Main Methods:

  • A two-part mixed hurdle model was employed.
  • Daily PTSD symptom severity (intrusive, avoidance, dysphoric, negative affect) and alcohol consumption were assessed.
  • Coping self-efficacy was measured as a daily moderator.

Main Results:

  • Increased intrusive and avoidance PTSD symptoms were linked to a higher likelihood of drinking.
  • Elevated dysphoric symptoms or negative affect correlated with reduced alcohol consumption.
  • Daily coping self-efficacy moderated the distress-drinking link; lower coping amplified the effect of distress on drinking.

Conclusions:

  • Specific PTSD symptoms are associated with increased alcohol use.
  • Daily coping self-efficacy plays a crucial role in moderating the relationship between PTSD-related distress and alcohol consumption.
  • Findings inform models of PTSD/AUD comorbidity and suggest clinical targets for intervention.