Background: Graduated Drivers Licensing (GDL) programs phase in driving privileges for teenagers. In 2007, Massachusetts implemented a stricter version of the 1998 GDL law, with increased fines and education. This study evaluated the impact of the law on motor vehicle crash (MVC)-related health care utilization and charges.
Methods: Massachusetts government and US Census Bureau data were analyzed to compare the rates of MVC-related emergency department (ED) visits and hospital charges before (2002-2006) and after (2007-2011) the 2007 GDL law. Three driver age groups were studied: 16-17 (evaluating the law effect), 18-20 (evaluating the sustainability of the effect), and 25-29 years old (control group).
Results: MVC-related ED visits per population decreased after the law for all three age groups (16-17: 2326 to 713; 18-20: 2110 to 1304; 25-29: 1694 to 1228; per 100,000, p<0.001), but the decrease was greater amongst teenagers (16-17: -69%; 18-20: -38%) compared to the control group (-27%); p<0.001. MVC-related hospital charges per population also decreased for teenagers but increased for the control group (16-17: $2.70 m to $1.45 m; 18-20: $3.52 m to $2.26 m; 25-29: $1.86 m to $1.92 m; per 100,000, p<0.001).
Conclusions: The 2007 GDL law in Massachusetts was associated with significant decreases in MVC-related health care utilization and hospital charges among teenage drivers.
Keywords: Graduated Drivers Licensing laws; Health care costs; Health care utilization; Massachusetts; Teenage drivers.
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