Examining the role of trauma in alcohol interlock performance: A structural pathway analysis

Area of Science:

• Psychology
• Public Health
• Forensic Science

Background:

• Self-medication with alcohol is a common coping mechanism for trauma.
• Driving under the influence (DUI) is a significant public health issue.
• Alcohol ignition interlock devices (IIDs) are mandated for DUI offenders to prevent re-offending.

Purpose of the Study:

• To investigate the relationship between traumatic experiences and performance on alcohol ignition interlock devices (IIDs) among DUI offenders.
• To understand the indirect effects of trauma on IID performance through alcohol use patterns.

Main Methods:

• Archival analysis of the Managing Heavy Drinking (MHD) study data from New York (2015-2020).
• Inclusion of 121 participants convicted of DUI, who completed questionnaires and provided consent for interlock data retrieval.
• Structural equation modeling was used to analyze relationships between trauma, alcohol use, and IID performance (high BAC lockout ratios).

Main Results:

• A significant pathway was identified from trauma to increased alcohol use (β = .132).
• Alcohol use significantly predicted interlock performance (β = .636).
• No direct relationship was found between trauma and IID performance, only an indirect effect mediated by alcohol use.

Conclusions:

• Traumatic experiences alone do not directly impair performance on alcohol ignition interlock devices.
• The impact of trauma on IID performance is mediated by increased alcohol consumption.
• Findings suggest interventions addressing trauma and alcohol use are crucial for improving IID compliance in DUI offenders.