Authors: Emily McGlinchey; Jana Ross; Dominic Murphy; Gillian W. Shorter; Cherie Armour · Research

How Are PTSD and Alcohol Use Connected in Military Veterans?

A study examining the complex relationship between PTSD symptoms and problematic alcohol use in veterans.

Source: McGlinchey, E., Ross, J., Murphy, D., Shorter, G. W., & Armour, C. (2022). Disentangling the Symptom-Level Nuances in Comorbid Posttraumatic Stress Disorder and Problematic Alcohol Use in Northern Irish Military Veterans: A Network Analysis. Journal of Traumatic Stress, 35(1), 32-41. https://doi.org/10.1002/jts.22666

What you need to know

  • PTSD and problematic alcohol use frequently occur together in military veterans
  • This study examined how specific symptoms of PTSD and alcohol use are connected
  • Reckless behavior, inability to stop drinking, and number of drinks consumed were key linking symptoms
  • The findings support multiple theories about why PTSD and alcohol problems often co-occur
  • Understanding these connections could help improve treatment for veterans with both conditions

The connection between PTSD and alcohol use in veterans

Post-traumatic stress disorder (PTSD) and problematic alcohol use are common issues that affect many military veterans. These two conditions often occur together, with some studies finding that up to 63% of veterans with PTSD also have alcohol use problems. When someone experiences both PTSD and alcohol issues at the same time, it can lead to more severe symptoms and difficulties than either condition alone.

Researchers have proposed several theories to explain why PTSD and alcohol problems frequently co-occur in veterans:

  1. The self-medication hypothesis suggests that people may use alcohol to try to relieve distressing PTSD symptoms.

  2. The risk-taking hypothesis proposes that alcohol use can lead to impulsive and risky behaviors, which may increase the chances of experiencing trauma and developing PTSD.

  3. Some researchers think PTSD and alcohol problems may share common risk factors or underlying causes, like difficulties regulating emotions.

To better understand the complex relationship between PTSD and alcohol use, researchers in Northern Ireland conducted a study examining how specific symptoms of each condition are connected in veterans. They used an approach called network analysis, which looks at how individual symptoms relate to each other, rather than just looking at PTSD and alcohol use as broad categories.

How the study was conducted

The researchers surveyed 511 veterans living in Northern Ireland who had experienced trauma and currently used alcohol. The veterans completed questionnaires about their PTSD symptoms and alcohol use. Using network analysis, the researchers then mapped out how different PTSD and alcohol-related symptoms were connected to each other.

Key findings: Bridging symptoms between PTSD and alcohol use

The study identified several key “bridging symptoms” that seemed to play an important role in connecting PTSD and alcohol use problems:

  1. Reckless behavior (a PTSD symptom): This had the strongest connections to alcohol use symptoms. Reckless behavior in PTSD can involve things like driving dangerously, engaging in unsafe sex, or other impulsive actions that put oneself at risk.

  2. Not being able to stop drinking (an alcohol use symptom): This symptom had strong links to various PTSD symptoms.

  3. Number of drinks consumed: The amount of alcohol used also showed important connections to PTSD symptoms.

These findings suggest that reckless behavior associated with PTSD may increase the risk of problematic drinking. At the same time, difficulty controlling alcohol intake may worsen PTSD symptoms or make them harder to manage.

Support for multiple explanations

The results of this study lend support to both the self-medication hypothesis and the risk-taking hypothesis for why PTSD and alcohol problems co-occur:

Self-medication: The strong connections between alcohol use symptoms (like not being able to stop drinking) and PTSD symptoms suggest that veterans may be using alcohol in an attempt to cope with PTSD-related distress.

Risk-taking: The central role of reckless behavior in connecting PTSD and alcohol use aligns with the idea that impulsive or risky actions can increase vulnerability to both conditions.

Additionally, the researchers note that problems regulating emotions may play an important role in both PTSD and alcohol use. Difficulty managing intense emotions could contribute to both reckless behavior and using alcohol as a coping mechanism.

Limitations and future directions

It’s important to note some limitations of this study:

  • The research was cross-sectional, meaning it only looked at symptoms at one point in time. This makes it difficult to determine cause-and-effect relationships or how symptoms might change over time.

  • The study relied on self-reported symptoms rather than clinical interviews.

  • The sample was primarily male veterans from Northern Ireland, so the findings may not generalize to all veteran populations.

The researchers suggest that future studies should:

  • Use methods that track symptoms over time to better understand how PTSD and alcohol use influence each other.

  • Investigate how other factors, like depression or different types of trauma, might affect the relationship between PTSD and alcohol use.

  • Examine whether targeting the key bridging symptoms identified in this study could improve treatments for veterans experiencing both PTSD and alcohol problems.

Conclusions

  • PTSD and alcohol use problems in veterans are complexly interconnected at the symptom level
  • Reckless behavior, difficulty controlling drinking, and amount of alcohol consumed play key roles in linking the two conditions
  • The findings support multiple theories about why PTSD and alcohol problems often co-occur, including self-medication and risk-taking
  • Emotional regulation difficulties may underlie both PTSD and problematic alcohol use
  • Understanding these symptom connections could help improve assessment, prevention, and treatment for veterans struggling with both PTSD and alcohol use issues

This research highlights the intricate relationships between PTSD and alcohol use in veterans. By identifying key symptoms that bridge these conditions, the study provides valuable insights that could inform more targeted and effective interventions. However, more research is needed to fully understand these complex connections and translate these findings into improved care for veterans.

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