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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

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

[email protected]


Background

Methods

Results

Discussion






1979-88

1989-98

1999-2008


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



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.



Minnesota motor vehicle crashes 2001 2010
Minnesota Motor Vehicle Crashes2001-2010

Rate

Rates are incidents per 100,000 driver licenses/permits


Minnesota motorcycle crash trend 2001 2010
Minnesota Motorcycle Crash Trend2001-2010

Rate

Rates are incidents per 100,000 motorcycle licensed operators

MN Crash Facts


Mn motorcycle related death trend 2001 2010
MN Motorcycle-related Death Trend2001-2010

Rate

Rates are incidents per 100,000 motorcycle licensed operators

Death Certificates


Rate of mn motorcycle related injuries
Rate of MN Motorcycle-Related Injuries

Rate

Hospital UB data

Rates are incidents per 100,000 motorcycle licensed operators


Rate of minnesota tbi resulting from motorcycle crashes
Rate of Minnesota TBI Resulting from Motorcycle Crashes

Rate

Rates are incidents per 100,000 motorcycle licensed operators

Hospital UB data


Rate of tbi motorcycle other motor vehicle crashes
Rate of TBIMotorcycle & Other Motor Vehicle Crashes

Rate

Rates are incidents per 100,000 motorcycle licensed operators & 100,000 licensed/permitted drivers


Rates of severity of tbi by cause if in a crash
Rates of Severity of TBI by CauseIf in a crash

Rate

Other MVC, Severe

Rates are incidents per 100,000 crashes


Potential influencing factors
Potential Influencing Factors

  • Increased numbers of motorcycles/riders

  • Gender

  • Age-group

  • Location: Urban vs. Rural

  • Helmet Use

  • Impairment

  • Speed


Percent increase licensed operators registered vehicles
Percent IncreaseLicensed Operators & Registered Vehicles

8%

24%

12%

N

N

61%

-----Licensed Drivers

---- Registered Vehicles

Cars & Trucks

Motorcycles

DVS Data


Number of injured motorcyclists gender by year
Number of Injured MotorcyclistsGender by year

33%

N

Year

Hospital UB data


Rate of injured motorcyclists gender by year
Rate of Injured Motorcyclists Gender by year

Rate

Hospital UB data

Rates are incidents per 100,000 motorcycle licensed operators


Motorcycle injuries by age group 2001 2010
Motorcycle Injuries by Age Group2001-2010

N

Hospital UB data


Rate of motorcycle injury by age group
Rate of Motorcycle Injury by Age Group

Rate

Hospital UB data

Rates are incidents per 100,000 motorcycle licensed operators


Age groups with largest increases in injuries
Age Groups with Largest Increases in Injuries

N

Year

Hospital UB data


Location of crashes urban vs rural 2004 2007
Location of Crashes: Urban vs. Rural2004 - 2007

N

Year

Crash Data


Motorcyclist impairment in crashes 2004 2007
Motorcyclist Impairment in Crashes2004-2007

N

Unknown

Year

Crash Data


Helmet use by motorcyclists that crashed 2004 2007
Helmet Use by Motorcyclists that Crashed, 2004 - 2007

N

Year

Crash Data


Speed reported as factor in motorcycle crash
Speed Reported as Factor in Motorcycle Crash

N

Crash Data


Motorcycle crash fatal vs nonfatal logistic regression results 2004 2005
Motorcycle Crash: Fatal vs. Nonfatal Logistic Regression Results2004 - 2005

Adjusting for above variables, gender and helmet use.

Codes Data


Motorcycle crash injured vs non injured logistic regression results 2004 2005
Motorcycle Crash: Injured vs. Non-Injured Logistic Regression Results2004-2005

Adjusting for above variables, impairment and helmet use.

Codes Data


Motorcycle crash tbi vs other injury logistic regression results 2004 2005
Motorcycle Crash: TBI vs. Other Injury Logistic Regression Results2004 -2005

Adjusting for above variables, gender and location.

Codes Data



Summary
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.



Contact information
Contact Information

Leslie Seymour, MD, MPH

Epidemiologist

Injury & Violence Prevention Unit

Minnesota Department of Health

[email protected]

651-201-5489


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