trends in minnesota motorcycle crash injury
DESCRIPTION
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 - PowerPoint PPT PresentationTRANSCRIPT
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 PreventionMinnesota Department of [email protected]
Trends in MinnesotaMotorcycle Crash Injury
Background
Methods
Results
Discussion
Background
1979-1988
1989-1998
1999-2008
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 20109 percent in 2000 2 percent in 1997
http://www.iihs.org/research/qanda/motorcycles.aspx
Methods
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.
Results
Minnesota Motor Vehicle Crashes2001-2010
2001 2002 2004 2005 2006 2007 2008 2009 20100
500
1,000
1,500
2,000
2,500
3,000
f(x) = − 108.529999436733 x + 2746.67146399397
Rate
Rates are incidents per 100,000 driver licenses/permits
Minnesota Motorcycle Crash Trend2001-2010
2001 2002 2004 2005 2006 2007 2008 2009 20100.0
50.0
100.0
150.0
200.0
250.0
300.0
350.0
400.0
450.0
500.0
f(x) = − 0.486004941455997 x + 391.363257683155
Rate
Rates are incidents per 100,000 motorcycle licensed operators MN Crash Facts
MN Motorcycle-related Death Trend2001-2010
2001 2002 2004 2005 2006 2007 2008 2009 20100.0
5.0
10.0
15.0
20.0
25.0
f(x) = 0.478402767551437 x + 16.7861373081915
Rate
Rates are incidents per 100,000 motorcycle licensed operators Death Certificates
Rate of MN Motorcycle-Related Injuries
2001 2002 2003 2004 2005 2006 2007 2008 2009 20100.0
100.0
200.0
300.0
400.0
500.0
600.0
f(x) = 3.89441761659429 x + 418.756386712527
Rate
Rates are incidents per 100,000 motorcycle licensed operators Hospital UB data
Rate of Minnesota TBI Resulting from Motorcycle Crashes
2001 2002 2003 2004 2005 2006 2007 2008 2009 20100.0
20.0
40.0
60.0
80.0
100.0
120.0
f(x) = 3.89908265209781 x + 58.3272686176247
Rates are incidents per 100,000 motorcycle licensed operators Hospital UB data
Rate
Rate of TBIMotorcycle & Other Motor Vehicle Crashes
2001 2002 2003 2004 2005 2006 2007 2008 2009 20100.0
10.0
20.0
30.0
40.0
50.0
60.0
70.0
80.0
90.0
Motorcycle Crash
Other Motor Vehicle CrashRate
Rates are incidents per 100,000 motorcycle licensed operators & 100,000 licensed/permitted drivers
Rates of Severity of TBI by CauseIf in a crash
2001 2002 2004 2005 2006 2007 2008 2009 20100.0
2,000.0
4,000.0
6,000.0
8,000.0
10,000.0
12,000.0
14,000.0
Motorcycle, Mild
Motorcycle, Severe
Other MVC, Mild
Motorcycle, ModerateOther MVC, Moderate
Other MVC, Severe
Rates are incidents per 100,000 crashes
Rate
Potential Influencing Factors• Increased numbers of motorcycles/riders• Gender• Age-group• Location: Urban vs. Rural• Helmet Use• Impairment• Speed
Percent IncreaseLicensed Operators & Registered Vehicles
20012003
20052007
20090
1,000,000
2,000,000
3,000,000
4,000,000
5,000,000
6,000,000
----- Licensed Drivers ----- Registered Vehicles
20012003
20052007
20090
50,000
100,000
150,000
200,000
250,000
300,000
350,000
400,000
450,000
----- Licensed Drivers ---- Registered Vehicles
N N
Cars & Trucks Motorcycles
24%
61%
8%
12%
DVS Data
Number of Injured MotorcyclistsGender by year
2001 2002 2003 2004 2005 2006 2007 2008 2009 20100
200
400
600
800
1000
1200
1400
1600
1800
FM
43%
N
YearHospital UB data
33%
Rate of Injured Motorcyclists Gender by year
2001 2002 2003 2004 2005 2006 2007 2008 2009 20100.0
100.0
200.0
300.0
400.0
500.0
600.0
700.0
800.0
900.0
1000.0
Female
Male
Rate
Rates are incidents per 100,000 motorcycle licensed operators Hospital UB data
Motorcycle Injuries by Age Group2001-2010
15-20 21-30 31-40 41-50 51-60 61-70 71-80 81-900
500
1,000
1,500
2,000
2,500
3,000
3,500
4,000
N
Hospital UB data
Rate of Motorcycle Injury by Age Group
15-20 21-30 31-40 41-50 51-60 61-70 71-80 81-900.0
100.0
200.0
300.0
400.0
500.0
600.0
700.0
800.0
900.0
Rates are incidents per 100,000 motorcycle licensed operators
Rate
Hospital UB data
Age Groups with Largest Increases in Injuries
2001 2002 2003 2004 2005 2006 2007 2008 2009 20100
50
100
150
200
250
300
350
400
450
500
0-1011-2021-3031-4041-5051-6061-7071-8081-90
61-70 310%
41-50 39%
51-60 116%N
Year Hospital UB data
Location of Crashes: Urban vs. Rural2004 - 2007
2004 2005 2006 20070
200
400
600
800
1000
1200
UrbanRural
N
Year Crash Data
Motorcyclist Impairment in Crashes2004-2007
2004 2005 2006 20070
200
400
600
800
1000
1200
1400
1600
UnknownNoYes
No
Yes
Unknown
N
Year Crash Data
Helmet Use by Motorcyclists that Crashed, 2004 - 2007
2004 2005 2006 20070
100
200
300
400
500
600
700
UnknownNoYes
N
Year Crash Data
Speed Reported as Factor in Motorcycle Crash
2004 2005 2006 20070
200
400
600
800
1000
1200
1400
1600
UnknownNoYes
Crash Data
N
Motorcycle Crash: Fatal vs. Nonfatal Logistic Regression Results
2004 - 2005
Factor Odds Ratio P-value
Impaired 2.0 0.0144
Rural 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 Results
2004-2005Factor Odds Ratio P-value
Rural 1.2 0.020
31-40 years old 1.3 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 Results
2004 -2005
Factor Odds Ratio P-value
51-60 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
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.
What’s Next?
Contact Information
Leslie Seymour, MD, MPHEpidemiologist
Injury & Violence Prevention UnitMinnesota Department of Health