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Long-term impact on alcohol-involved crashes of lowering the minimum purchase age in New Zealand

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  • Huckle, T.
  • Parker, K.

Abstract

Objectives. We assessed the long-term effect of lowering theminimum purchase age for alcohol from age 20 to age 18 years on alcohol-involved crashes in New Zealand. Methods. We modeled ratios of drivers in alcohol-involved crashes to drivers in non-alcohol-involved crashes by age group in 3 time periods using logistic regression, controlling for gender and adjusting for multiple comparisons. Results. Before the law change, drivers aged 18 to 19 and 20 to 24 years had similar odds of an alcohol-involved crash (P = .1). Directly following the law change, drivers aged 18 to 19 years had a 15% higher odds of being in an alcohol-involved crash than did drivers aged 20 to 24 years (P = .038). In the long term, drivers aged 18 to 19 years had 21% higher odds of an alcohol-involved crash than did the age control group (P ε .001). We found no effects for fatal alcohol-involved crashes alone and no trickle-down effects for the youngest group. Conclusions. Lowering the purchase age for alcohol was associated with a longterm impact on alcohol-involved crashes among drivers aged 18 to 19 years. Raising the minimumpurchase age for alcohol would be appropriate.

Suggested Citation

  • Huckle, T. & Parker, K., 2014. "Long-term impact on alcohol-involved crashes of lowering the minimum purchase age in New Zealand," American Journal of Public Health, American Public Health Association, vol. 104(6), pages 1087-1091.
    • Handle: RePEc:aph:ajpbhl:10.2105/ajph.2013.301734_2
    DOI: 10.2105/AJPH.2013.301734
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    Cited by:

    1. Kabir Dasgupta & Christopher Erwin & Alexander Plum, 2020. "The Devil is in the Details: Identifying the Unbiased Link between Access to Alcohol and Criminal Behavior," Working Papers 2020-12, Auckland University of Technology, Department of Economics.
    2. Boes, Stefan & Stillman, Steven, 2017. "You Drink, You Drive, You Die? The Dynamics of Youth Risk Taking in Response to a Change in the Legal Drinking Age," IZA Discussion Papers 10543, Institute of Labor Economics (IZA).

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