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Original Articles

Repeat DUI Offenders Who Have Had a Drug Diagnosis: Are They More Prone to Traffic Crashes and Violations?

, &
Pages 134-140 | Received 21 Jul 2008, Accepted 02 Nov 2008, Published online: 07 Apr 2009
 

Abstract

Objective: Study objectives are to test for differences (1) in rates of negative traffic outcomes between DUI offenders who have lifetime drug use disorders (DUD) and those with no lifetime DUD; and (2) by drug class for those with a DUD.

Methods: The study sample of 379 male and 74 female repeat DUI offenders was interviewed using the Composite International Diagnostic Interview.

Results: Compared to those with an alcohol use disorder (AUD) only, the relative risk of being involved in a vehicular crash was greater for those with a central nervous system (CNS) depressant use disorder. The risk of being convicted of a traffic offense was higher for those with any DUD and for those with a CNS stimulant use disorder. Differences by class of drug used, after adjusting for demographics, were a 47 percent (confidence interval: 6–103%) greater risk of being in a crash with a CNS depressant use disorder and 28 percent (confidence interval: 11–48%) greater risk of a traffic conviction with a stimulant use disorder.

Conclusions: Results underscore the increased risk of negative traffic outcomes among repeat DUI offenders diagnosed with DUD, particularly CNS depressant disorders, supporting the call to establish policies that include comprehensive evaluation and treatment for this population.

ACKNOWLEDGMENTS

This study was funded by NIAAA Grants # RO1 AA 1279-02 and RO1 AA014750-01.

Notes

a Percentage of total sample in that demographic category.

b Pearson's test of association across age categories p < 0.05.

c Pearson's test of association between genders, all nonsignificant.

d Pearson's test of association across ethnic categories p < 0.05.

p < 0.05.

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