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A randomised controlled trial of brief motivational interviewing in impaired driving recidivists

A team of researchers tested 2 main hypotheses in a recent study: (i) exposure to brief motivational interviewing (BMI) increases the time to further arrests and crashes compared with exposure to the control intervention (CTL) and (ii) characteristics, such as age, moderate the benefit of BMI.

The study took a sample of 180 community-recruited recidivists who had drinking problems. Participants gave access to their provincial driving records at baseline and were followed up for a mean of 1,684.5 days after receiving either a 30-minute BMI or CTL session.

Measured outcomes were driving arrests followed by convictions including driving while impaired

(DWI), speeding, or other moving violations as well as crashes. Age, readiness to change alcohol

consumption, alcohol misuse severity, and number of previous DWI convictions were included as potential moderators of the effect of the interventions.

For arrests, Cox proportional hazards modeling revealed no significant differences between the BMI and the CTL group. When analyses were adjusted to age tertile categories, a significant effect of BMI in the youngest age tertile (<43 years old) emerged.

For crashes, no between-group differences were detected. BMI was better at delaying DWI and other dangerous traffic violations in at-risk younger drivers compared with a CTL similar to that provided in many remedial programs.

The authors suggest that BMI may be useful as an opportunistic intervention for DWI.

Source: A Randomised Controlled Trial of Brief Motivational Interviewing in Impaired Driving Recidivists: A 5-Year Follow-Up of Traffic Offenses and Crashes. Marie Claude Ouimet, Maurice Dongier, Ivana Di Leo, Lucie Legault, Jacques Tremblay, Florence Chanut, Thomas G. Brown.

Alcohol Clin Exp Res. 2013 Nov;37(11):1979-85.

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