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Impact of state ignition interlock laws on alcohol-involved crash deaths in the United States

Author

Listed:
  • Kaufman, E.J.
  • Wiebe, D.J.

Abstract

Objectives. To investigate the impact on alcohol-involved crash deaths of universal ignition interlock requirements, which aim to prevent people convicted of driving under the influence of alcohol from driving while intoxicated. Methods. We used data from the National Highway Traffic Safety Administration for 1999 to 2013. From 2004 to 2013, 18 states made interlocks mandatory for all drunk-driving convictions. We compared alcohol-involved crash deaths between 18 states with and 32 states without universal interlock requirements, accounting for state and year effects, and for clustering within states. Results. Policy impact was apparent 3 years after implementation. The adjusted rate of alcohol-involved crash deaths was 4.7 (95% confidence interval [CI] = 4.0, 5.4) per 100 000 in states with the universal interlock requirement, compared with 5.5 (95% CI = 5.48, 5.53) in states without, an absolute reduction of 0.8 (95% CI = 0.1, 1.5) deaths per 100 000 per year. Conclusions. Requiring ignition interlocks for all drunk-driving convictions was associated with 15% fewer alcohol-involved crash deaths, compared with states with less-stringent requirements. Interlocks are a life-saving technology that merit wider use.

Suggested Citation

  • Kaufman, E.J. & Wiebe, D.J., 2016. "Impact of state ignition interlock laws on alcohol-involved crash deaths in the United States," American Journal of Public Health, American Public Health Association, vol. 106(5), pages 865-871.
    • Handle: RePEc:aph:ajpbhl:10.2105/ajph.2016.303058_8
    DOI: 10.2105/AJPH.2016.303058
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    Cited by:

    1. Rong-Chang Jou & Yi-Hao Lu, 2021. "Car/Motorbike Drivers’ Willingness to Use and to Pay for Alcohol Interlock in Taiwan," IJERPH, MDPI, vol. 18(21), pages 1-18, November.
    2. Richard Allsop, 2020. "Drink Driving as the Commonest Drug Driving—A Perspective from Europe," IJERPH, MDPI, vol. 17(24), pages 1-14, December.
    3. Tania Leiman, 2021. "Law and tech collide: foreseeability, reasonableness and advanced driver assistance systems [Advanced Driver Assistance Systems (ADAS): A consideration of driver perceptions on training, usage & im," Policy and Society, Darryl S. Jarvis and M. Ramesh, vol. 40(2), pages 250-271.
    4. Joyce C. Pressley & Leah M. Hines & Michael J. Bauer & Shin Ah Oh & Joshua R. Kuhl & Chang Liu & Bin Cheng & Matthew F. Garnett, 2019. "Using Rural–Urban Continuum Codes (RUCCS) to Examine Alcohol-Related Motor Vehicle Crash Injury and Enforcement in New York State," IJERPH, MDPI, vol. 16(8), pages 1-17, April.

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