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Trends in Minnesota Motorcycle Crash Injury

Trends in Minnesota Motorcycle Crash Injury. Council of State & Territorial Epidemiologists June 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

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Trends in Minnesota Motorcycle Crash Injury

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  1. Trends in MinnesotaMotorcycle Crash Injury Council of State & Territorial Epidemiologists June 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

  2. Background Methods Results Discussion

  3. Background

  4. 1979-1988

  5. 1989-1998

  6. 1999-2008

  7. 1979-88 1989-98 1999-2008

  8. 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

  9. Methods

  10. Data • MHA (Minnesota Hospital Association) Universal Billing Data • DPS (Department of Public Safety) Crash Data • Death Certificates • CODES Data (Crash Outcome Data Evaluation System) - Linked Hospital and Crash Data • DVS (Department of Vehicle Services) Data - Licensed Operators - Registered Vehicles • Data looked at was restricted to drivers.

  11. Results

  12. Minnesota Motor Vehicle Crashes2001-2010 Rate Rates are incidents per 100,000 driver licenses/permits

  13. Minnesota Motorcycle Crash Trend2001-2010 Rate Rates are incidents per 100,000 motorcycle licensed operators MN Crash Facts

  14. MN Motorcycle-related Death Trend2001-2010 Rate Rates are incidents per 100,000 motorcycle licensed operators Death Certificates

  15. Rate of MN Motorcycle-Related Injuries Rate Hospital UB data Rates are incidents per 100,000 motorcycle licensed operators

  16. Rate of Minnesota TBI Resulting from Motorcycle Crashes Rate Rates are incidents per 100,000 motorcycle licensed operators Hospital UB data

  17. Rate of TBIMotorcycle & Other Motor Vehicle Crashes Rate Rates are incidents per 100,000 motorcycle licensed operators & 100,000 licensed/permitted drivers

  18. Rates of Severity of TBI by CauseIf in a crash Rate Other MVC, Severe Rates are incidents per 100,000 crashes

  19. Potential Influencing Factors • Increased numbers of motorcycles/riders • Gender • Age-group • Location: Urban vs. Rural • Helmet Use • Impairment • Speed

  20. Percent IncreaseLicensed Operators & Registered Vehicles 8% 24% 12% N N 61% -----Licensed Drivers ---- Registered Vehicles Cars & Trucks Motorcycles DVS Data

  21. Number of Injured MotorcyclistsGender by year 33% N Year Hospital UB data

  22. Rate of Injured Motorcyclists Gender by year Rate Hospital UB data Rates are incidents per 100,000 motorcycle licensed operators

  23. Motorcycle Injuries by Age Group2001-2010 N Hospital UB data

  24. Rate of Motorcycle Injury by Age Group Rate Hospital UB data Rates are incidents per 100,000 motorcycle licensed operators

  25. Age Groups with Largest Increases in Injuries N Year Hospital UB data

  26. Location of Crashes: Urban vs. Rural2004 - 2007 N Year Crash Data

  27. Motorcyclist Impairment in Crashes2004-2007 N Unknown Year Crash Data

  28. Helmet Use by Motorcyclists that Crashed, 2004 - 2007 N Year Crash Data

  29. Speed Reported as Factor in Motorcycle Crash N Crash Data

  30. Motorcycle Crash: Fatal vs. Nonfatal Logistic Regression Results2004 - 2005 Adjusting for above variables, gender and helmet use. Codes Data

  31. Motorcycle Crash: Injured vs. Non-Injured Logistic Regression Results2004-2005 Adjusting for above variables, impairment and helmet use. Codes Data

  32. Motorcycle Crash: TBI vs. Other Injury Logistic Regression Results2004 -2005 Adjusting for above variables, gender and location. Codes Data

  33. Discussion

  34. Summary • Motorcycle 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.

  35. What’s Next?

  36. Contact Information Leslie Seymour, MD, MPH Epidemiologist Injury & Violence Prevention Unit Minnesota Department of Health leslie.seymour@state.mn.us 651-201-5489

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