Council of State amp Territorial Epidemiologists June 4 2012 Omaha NE Leslie Seymour MD MPH Jon Roesler MS Anna Gaichas MS Mark Kinde MPH Injury and Violence Prevention ID: 768905
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Council of State & Territorial EpidemiologistsJune 4, 2012 / Omaha, NE Leslie Seymour, MD, MPH Jon Roesler, MS Anna Gaichas, MS Mark Kinde, MPH Injury and Violence Prevention Minnesota Department of Health injury.prevention@health.state.mn.us Trends in MinnesotaMotorcycle Crash Injury
BackgroundMethodsResultsDiscussion
Background
1979-1988
1989-1998
1999-2008
1979-881989-981999-2008
Is engine size increasing? The average engine size in all classes of motorcycles involved in fatal crashes has risen. Motorcycles with engine sizes larger than 1,400 cubic centimeters: 29 percent in 2010 9 percent in 2000 2 percent in 1997 http://www.iihs.org/research/qanda/motorcycles.aspx
Methods
DataMHA (Minnesota Hospital Association) Universal Billing DataDPS (Department of Public Safety) Crash DataDeath CertificatesCODES Data (Crash Outcome Data Evaluation System) - Linked Hospital and Crash DataDVS (Department of Vehicle Services) Data - Licensed Operators - Registered VehiclesData looked at was restricted to drivers.
Results
Minnesota Motor Vehicle Crashes2001-2010RateRates are incidents per 100,000 driver licenses/permits
Minnesota Motorcycle Crash Trend2001-2010RateRates are incidents per 100,000 motorcycle licensed operatorsMN Crash Facts
MN Motorcycle-related Death Trend2001-2010RateRates are incidents per 100,000 motorcycle licensed operatorsDeath Certificates
Rate of MN Motorcycle-Related InjuriesRateRates are incidents per 100,000 motorcycle licensed operatorsHospital UB data
Rate of Minnesota TBI Resulting from Motorcycle CrashesRates are incidents per 100,000 motorcycle licensed operatorsHospital UB dataRate
Rate of TBIMotorcycle & Other Motor Vehicle CrashesRateRates are incidents per 100,000 motorcycle licensed operators & 100,000 licensed/permitted drivers
Rates of Severity of TBI by CauseIf in a crashOther MVC, SevereRates are incidents per 100,000 crashesRate
Potential Influencing FactorsIncreased numbers of motorcycles/ridersGenderAge-groupLocation: Urban vs. RuralHelmet UseImpairmentSpeed
Percent IncreaseLicensed Operators & Registered Vehicles ----- Licensed Drivers ---- Registered VehiclesNNCars & TrucksMotorcycles24% 61% 8% 12% DVS Data
Number of Injured MotorcyclistsGender by yearNYearHospital UB data33%
Rate of Injured Motorcyclists Gender by yearRateRates are incidents per 100,000 motorcycle licensed operators Hospital UB data
Motorcycle Injuries by Age Group2001-2010NHospital UB data
Rate of Motorcycle Injury by Age GroupRates are incidents per 100,000 motorcycle licensed operators RateHospital UB data
Age Groups with Largest Increases in InjuriesNYearHospital UB data
Location of Crashes: Urban vs. Rural2004 - 2007NYearCrash Data
Motorcyclist Impairment in Crashes2004-2007UnknownNYearCrash Data
Helmet Use by Motorcyclists that Crashed, 2004 - 2007NYearCrash Data
Speed Reported as Factor in Motorcycle CrashCrash DataN
Motorcycle Crash: Fatal vs. Nonfatal Logistic Regression Results2004 - 2005FactorOdds RatioP-valueImpaired 2.00.0144Rural 2.2 0.0003 41-50 years old 2.3 0.0040 61-70 years old 3.7 0.0040 Speeding 3.8 <.0001 Adjusting for above variables, gender and helmet use. Codes Data
Motorcycle Crash: Injured vs. Non-Injured Logistic Regression Results2004-2005FactorOdds RatioP-valueRural 1.20.02031-40 years old1.3 0.043 Speeding 1.3 0.008 51-60 years old 1.5 0.003 Male 1.5 0.006 Adjusting for above variables, impairment and helmet use. Codes Data
Motorcycle Crash: TBI vs. Other Injury Logistic Regression Results2004 -2005FactorOdds RatioP-value51-60 years old 1.5 0.029 No Helmet 1.5 0.0002 Speeding 1.7 0.0001 Impaired 2.5 <.0001 Adjusting for above variables, gender and location. Codes Data
Discussion
SummaryMotorcycle crash trend in Minnesota has been relatively stable over the last 10 years.Minnesota does have an increasing trend of motorcycle crash injuries and deaths.40% of these injuries are TBIs.Speed was the only factor that was significant in all three outcomes.
What’s Next?
Contact InformationLeslie Seymour, MD, MPHEpidemiologistInjury & Violence Prevention UnitMinnesota Department of Healthleslie.seymour@state.mn.us651-201-5489