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  • Title: Trends in Alabama teen driving death and injury.
    Author: Monroe K, Irons E, Crew M, Norris J, Nichols M, King WD.
    Journal: J Trauma Acute Care Surg; 2014 Sep; 77(3 Suppl 1):S51-4. PubMed ID: 25153056.
    Abstract:
    BACKGROUND: Motor vehicle crashes (MVCs) are a leading cause of morbidity and mortality in teens. Alabama has been in the Top 5 states for MVC fatality rate among teens in the United States for several years. Twelve years of teen MVC deaths and injuries were evaluated. Our hypothesis is that the teen driving motor vehicle-related deaths and injuries have decreased related to legislative and community awareness activities. METHODS: A retrospective analysis of Alabama teen MVC deaths and injury for the years 2000 to 2011 was conducted. MVC data were obtained from a Fatality Analysis Reporting System data set managed by the Center for Advanced Public Safety at the University of Alabama. A Lowess regression-scattergram analysis was used to identify period specific changes in deaths and injury over time. Statistical analysis was conducted using True Epistat 5.0 software. When the Lowess regression was applied, there was an obvious change in the trend line in 2007. To test that observation, we then compared medians in the pre-2007 and post-2007 periods, which validated our observation. Moreover, it provided a near-even number of observations for comparison. The Spearman rank correlation was used to test for correlation of deaths and injury over time. The Mann-Whitney U-test was used to evaluate median differences in deaths and injury comparing pre-2007 and post-2007 data. RESULTS: Alabama teen MVC deaths and injury demonstrated a significant negative correlation over the 12-year period (Rs for deaths and injury, -0.87 [p < 0.001] and -0.92 [p < 0.001], respectively). Lowess regression identified a notable decline in deaths and injury after the year 2006. Median deaths and injury for the pre-2007 period were significantly higher than the post-2007 period, (U = 35.0, p = 0.003). CONCLUSION: Alabama teen driver deaths and injury have decreased during the 12-year study period, most notably after 2006. Factors that may have contributed to this trend may include stricter laws for teen drivers (enacted in 2002 and updated in 2010), less teen driving because of a nationwide economic downturn, delayed licensing in teens, steady improvements in overall seat belt use, and heightened public awareness of risky behaviors in teen driving.
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