Helmets for preventing injury in motorcycle riders

Area of Science:

• Traumatology
• Public Health
• Epidemiology

Background:

• Motorcycle crashes are a major cause of road traffic fatalities and severe injuries.
• Head injuries are a common and critical outcome for motorcyclists involved in crashes.
• Concerns exist regarding helmet use potentially impairing vision or increasing neck injuries.

Purpose of the Study:

• To systematically review evidence on the impact of motorcycle helmet use on mortality and head, face, and neck injuries.
• To assess the effectiveness of helmets in mitigating severe outcomes from motorcycle crashes.

Main Methods:

• Conducted a comprehensive literature search across multiple databases (Cochrane, MEDLINE, EMBASE, CINAHL, TRANSPORT, Science Citation Index).
• Included observational studies (cohort, case-control, cross-sectional) and controlled trials comparing helmeted and unhelmeted riders.
• Excluded ecological and case series studies; data abstracted independently by two authors.

Main Results:

• Sixty-one observational studies consistently showed that motorcycle helmets reduce the risk of death and head injury.
• Higher quality studies estimated a 42% reduction in death risk and a 69% reduction in head injury risk.
• Evidence on facial and neck injuries was insufficient, though poorer quality studies suggested protection for facial injuries and no effect on neck injuries.

Conclusions:

• Motorcycle helmets are effective in reducing mortality and head injuries among riders in crashes.
• Further research is needed to clarify helmet effects on neck and facial injuries and compare different helmet types.
• Increased helmet use is recommended to facilitate global road traffic injury reduction efforts.