Motorcycle helmets and head injuries in Kentucky, 1995-2000.

Motorcycle crashes are common occurrences in Kentucky, and often result in injury or death. The use of motorcycle helmets may improve injury outcomes. Data collected from University of Louisville Hospital trauma center were used to investigate the association between motorcycle helmet use and traumatic brain injuries (TBI), severe head injuries, and acute care hospital charges. Multiple logistic and linear regression models were used for analysis. Motorcycle drivers who did not wear helmets were more likely to incur a TBI (OR = 4.33, 95% CI: 2.60-7.20), severe head injuries (OR = 4.36, 95% CI: 2.58-7.37), and higher acute care hospital charges (beta = $26,618, 95% CI: $8670-$44,565). Kentucky's failure to require mandatory helmet use may increase incidence of TBI and severe head injuries among motorcyclists, and cost state government millions of dollars to pay for care for uninsured or Medicaid patients.