The Use of Alcohol and Drugs to Self-Medicate Symptoms of Posttraumatic Stress Disorder

Depress Anxiety. 2010 Aug;27(8):731-6. doi: 10.1002/da.20677.

Abstract

Background: Self-medication has been proposed as an explanation for the high rates of comorbidity between posttraumatic stress disorder (PTSD) and substance use disorders; however, knowledge of self-medication in PTSD is scarce. We describe the prevalence and correlates of self-medication in PTSD in the general population.

Methods: Data came from the National Epidemiologic Survey on Alcohol and Related Conditions Wave 2 (N=34,653; response rate: 70.2%), a nationally representative survey of mental illness in community-dwelling adults. Self-medication was assessed separately for alcohol and drugs. Prevalence rates were determined for self-medication among individuals with DSM-IV PTSD. Regression analyses determined associations between self-medication and a variety of correlates, including sociodemographic factors, comorbid mental disorders, suicide attempts, and quality of life.

Results: Approximately 20% of individuals with PTSD used substances in an attempt to relieve their symptoms. Men were significantly more likely than women to engage in self-medication behavior. In adjusted models, using illicit drugs or misusing prescription medications to control PTSD symptoms was associated with a substantially higher likelihood of dysthymia and borderline personality disorder. After controlling for mental disorder comorbidity, self-medication was independently associated with higher odds of suicide attempts (adjusted odds ratio=2.46; 95% confidence interval 1.53-3.97) and lower mental health-related quality of life.

Conclusions: Self-medication is a common behavior among people with PTSD in the community, yet has potentially hazardous consequences. Health care practitioners should assess reasons for substance use among people with PTSD to identify a subgroup with higher psychiatric morbidity.

Publication types

  • Research Support, Non-U.S. Gov't

MeSH terms

  • Adult
  • Aged
  • Aged, 80 and over
  • Alcohol Drinking / epidemiology*
  • Alcohol Drinking / psychology*
  • Borderline Personality Disorder / epidemiology
  • Borderline Personality Disorder / psychology
  • Comorbidity
  • Cross-Sectional Studies
  • Dysthymic Disorder / epidemiology
  • Dysthymic Disorder / psychology
  • Female
  • Health Surveys
  • Humans
  • Longitudinal Studies
  • Male
  • Middle Aged
  • Odds Ratio
  • Quality of Life / psychology
  • Self Medication / psychology*
  • Self Medication / statistics & numerical data*
  • Statistics as Topic
  • Stress Disorders, Post-Traumatic / diagnosis
  • Stress Disorders, Post-Traumatic / epidemiology*
  • Stress Disorders, Post-Traumatic / psychology*
  • Substance-Related Disorders / epidemiology*
  • Substance-Related Disorders / psychology*
  • Young Adult