@article{ref1,
title="The effect of state motorcycle licensing laws on motorcycle driver mortality rates",
journal="Journal of trauma",
year="2004",
author="Rue, L. W. and Barbone, Fabio and Valent, Francesca and Metzger, J. and Whatley, James and McGwin, Gerald",
volume="56",
number="2",
pages="415-419",
abstract="OBJECTIVE: The purpose of this study was to evaluate the association between motorcycle licensing and operation regulations and motorcycle mortality rates in the United States during 1997 through 1999. METHODS: A population-based ecologic study was used. RESULTS: Lower mortality rates were observed in states with the following motorcycling requirements: skill test for a motorcycle permit (rate ratio [RR], 0.76; 95% confidence interval [CI], 0.69-0.84), driver training (RR, 0.80; 95% CI, 0.74-0.86), longer duration of learner's permits (95-190 days [RR, 0.86; 95% CI, 0.79-0.95] and >190 days [RR, 0.87; 95% CI, 0.81-0.93], three or more learner's permit restrictions (RR, 0.78; 95% CI, 0.73-0.84), and a full helmet law (RR, 0.76; 95% CI, 0.71-0.81). CONCLUSION: Specific motorcycle licensure policies appear to be associated with lower mortality rates.",
language="",
issn="0022-5282",
doi="10.1097/01.TA.0000044625.16783.A9",
url="http://dx.doi.org/10.1097/01.TA.0000044625.16783.A9"
}