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Effects of repealing the motorcycle helmet law in Michigan
Zachary Hothem1, Robert Simon1, Wesley Barnes1
1General Surgery Resident at Beaumont Health, Royal Oak, MI, USA.
Background:
In 2012, Michigan repealed its universal helmet law. Our study assessed the clinical impact of this repeal.
Methods:
Our trauma database was queried retrospectively for 2 motorcycle riding seasons before and 3 seasons after repeal. On-scene death data was obtained from the Medical Examiner.
Results:
Helmet use in hospitalized patients decreased after the helmet law repeal. Non-helmeted patients had a significant increased rate of head injury. Non-helmeted patients were more likely to die during hospitalization. While, helmet use and drugs/alcohol status significantly affected the risk for head injury, only drug/alcohol had a significant effect on overall mortality.
Conclusions:
Following helmet law repeal, helmet use has decreased. Helmet status and drug/alcohol use was found to significantly increase risk of head injury. Although overall mortality was only affected by drug/alcohol use, non-helmeted patients did have a higher inpatient mortality. These findings deserve furthermore study and may provide a basis for reinstating the universal helmet law.
