EFFECTS OF BICYCLE HELMET LAWS ON CHILDREN'S INJURIES

ABSTRACT

Cycling is popular among children, but results in thousands of injuries annually. In recent years, many
states and localities have enacted bicycle helmet laws. We examine direct and indirect effects of these
laws on injuries. Using hospital-level panel data and triple difference models, we find helmet laws
are associated with reductions in bicycle-related head injuries among children. However, laws also
are associated with decreases in non-head cycling injuries, as well as increases in head injuries from
other wheeled sports. Thus, the observed reduction in bicycle-related head injuries may be due to
reductions in bicycle riding induced by the laws
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<a href="http://www.nber.org/papers/w18773.pdf?new_window=1">http://www.nber.org/papers/w18773.pdf?new_window=1</a>;

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