Driving while intoxicated (DWI) remains a preventable source of morbidity and mortality in the United States. Ignition interlock devices (IIDs) are used to prevent DWI offenders from driving while intoxicated during a mandated installation period and are effective during that time. Once IIDs are removed, DWI rates are like levels of offenders who had no IID.

Researchers at Klein Buendel and the University of New Mexico have published the results of a study that tested the efficacy of a new smartphone app (B-SMART) for DWI offenders with an IID and concerned family members, with the goal of reducing IID alcohol consumption and lockout events. The full paper with methods, analyses, and results has been published in the Journal of Studies on Alcohol and Drugs.

Four B-SMART app modules were developed: 1) Life with Interlock, 2) Supporting Changes in Drinking, 3) Doing Things Together, and 4) Effective Communication. Participants (pairs of DWI offenders and concerned family members) were randomly assigned to receive the B-SMART app (n=58) or referral to a state IID information page, considered usual and customary care (n=65), and followed for nine months. IID data (failed tests and lockout events) were obtained from IID providers as the primary outcome variables. Offender and CFM reports of alcohol consumption in the last 30 days prior to assessment were secondary measures.

IID data were collected on 62% (n=76) of participants. B-SMART participants had significantly fewer lockout events than usual and customary care participants. B-SMART offenders and their concerned family members reported significantly less likelihood of DWI offender drinking at the 9-month follow-up.

Results suggest the B-SMART app reduced DWI offender alcohol consumption and IID lockout events. These outcomes are important because fewer IID lockout events predict lower DWI recidivism.

This research was supported by a grant from the National Institute on Alcohol Abuse and Alcoholism (AA022850; Dr. W. Gill Woodall, Principal Investigator). Collaborators on this paper include Dr. Barbara McCrady and Dr. Vern Westerberg from the University of New Mexico; and Julia Berteletti, Lila Martinez, Marita Brooks, and Noah Chirico from Klein Buendel; and Thomas Starke from Impact DWI. The B-SMART app was developed by the Creative Team at Klein Buendel.