Evaluating 24/7 Sobriety Program participant reoffense risk.

Area of Science:

• Public Health
• Criminology
• Transportation Safety

Background:

• The 24/7 Sobriety Program aims to reduce driving under the influence (DUI) recidivism.
• Understanding risk factors for reoffense is crucial for effective impaired driving prevention strategies.

Purpose of the Study:

• To investigate risk factors associated with DUI reoffense among participants in North Dakota's 24/7 Sobriety Program.
• To analyze driver survival rates over a three-year period following enrollment in the program for a second DUI offense.

Main Methods:

• A Stratified Cox regression model was employed to analyze survival data.
• Hazard ratios were computed to identify predictors of subsequent DUI-related offenses.
• Explanatory variables were derived from administrative records.

Main Results:

• Older drivers (compared to 18-35 year olds) exhibited a 6.31 times higher likelihood of reoffending.
• The steepest decline in the survival curve, indicating increased reoffense risk, occurred between 361 and 730 days post-enrollment.
• Neither gender nor geographic region significantly predicted DUI reoffense; however, prior program history suggested a potential increased risk.

Conclusions:

• Age and the time interval after program completion are significant factors influencing DUI reoffense.
• Reoffense rates peak shortly after program completion, suggesting a critical period for intervention.
• Findings underscore the need to refine impaired driving prevention strategies, particularly for high-risk driver subpopulations.