A weighted logistic regression analysis for predicting the odds of head/face and neck injuries during rollover crashes

wbldb

Hu, Jingwen¹; Chou, Clifford C.¹; Yang, King H.¹; King, Albert I.¹

A weighted logistic regression analysis for predicting the odds of head/face and neck injuries during rollover crashes

51st Annual Proceedings, Association for the Advancement of Automotive Medicine (AAAM)

Affiliations

¹Bioengineering Center, Wayne State University, Detroit, Michigan, 48201, USA
Abstract

A weighted logistic regression with careful selection of crash, vehicle, occupant and injury data and sequentially adjusting the covariants, was used to investigate the predictors of the odds of head/face and neck (HFN) injuries during rollovers. The results show that unbelted occupants have statistically significant higher HFN injury risks than belted occupants. Age, number of quarter-turns, rollover initiation type, maximum lateral deformation adjacent to the occupant, A-pillar and B-pillar deformation are significant predictors of HFN injury odds for belted occupants. Age, rollover leading side and windshield header deformation are significant predictors of HFN injury odds for unbelted occupants. The results also show that the significant predictors are different between head/face (HF) and neck injury odds, indicating the injury mechanisms of HF and neck injuries are different.

Cited Works (15)

Year	Entry
1985	Orlowski KF, Bundorf RT, Moffatt EA. Rollover crash tests: the influence of roof strength on injury mechanics. In: Proceedings of the 29th Stapp Car Crash Conference. October 9-11, 1985; Washington, DC. Warrendale, PA: Society of Automotive Engineers:181-203. SAE 851734.
2005	Padmanaban J, Husher S. Occupant injury experience in rollover crashes: an in-depth review of NASS/CDS data. In: 49th Annual Proceedings, Association for the Advancement of Automotive Medicine (AAAM). September 12-14, 2005; Boston, MA.103-118.
2005	Digges K, Eigen AM, Dahdah S. Injury patterns in rollovers by crash severity. In: Proceedings of the 19th International Technical Conference on the Enhanced Safety of Vehicles (ESV). June 6-9, 2005; Washington, DC.
2005	Nash CE, Paskin A. A study of NASS rollover cases and the implication for federal regulation. In: Proceedings of the 19th International Technical Conference on the Enhanced Safety of Vehicles (ESV). June 6-9, 2005; Washington, DC.
1999	Lund Å, Palmertz C, Jakobsson L, Andersson G, Isaksson-Hellman I. In-depth study of Volvo cars in rollover accidents. In: Proceedings of the 1999 International IRCOBI Conference on the Biomechanics of Impact. September 23-24, 1999; Sitges, Spain.297-311.
2003	Bedewi PG, Godrick DA, Digges KH, Bahouth GT. An investigation of occupant injury in rollover: NASS-CDS analysis of injury severity and source by rollover attibutes. In: Proceedings of the 18th International Technical Conference on the Enhanced Safety of Vehicles (ESV). May 19-22, 2003; Nagoya, Japan.
1994	Digges KH, Malliaris AC, DeBlois HJ. Opportunities for casualty reduction in rollover crashes. In: Proceedings of the 14th International Technical Conference on the Enhanced Safety of Vehicles (ESV). May 23-26, 1994; Munich, Germany.863-868.
2005	Padmanaban J, Delahaye M, Hassan AM, Mackay M. The nature of serious injury in US and UK rollover crashes. In: Proceedings of the 2005 International IRCOBI Conference on the Biomechanics of Impact. September 21-23, 2005; Prague, Czech Republic.133-143.
2003	Digges KH, Eigen AM. Crash attributes that influence the severity of rollover crashes. In: Proceedings of the 18th International Technical Conference on the Enhanced Safety of Vehicles (ESV). May 19-22, 2003; Nagoya, Japan.
2005	Hu J, Lee JB, Yang KH, King AI. Injury patterns and sources of non-ejected occupants in trip-over crashes: a survey of NASS-CDS database from 1997 to 2002. In: 49th Annual Proceedings, Association for the Advancement of Automotive Medicine (AAAM). September 12-14, 2005; Boston, MA.119-132.
2005	Digges KH, Eigen AM. Severity measurements for rollover crashes. In: Proceedings of the 2005 International IRCOBI Conference on the Biomechanics of Impact. September 21-23, 2005; Prague, Czech Republic.121-132.
1990	Bahling GS, Bundorf RT, Kaspzyk GS, Moffatt EA, Orlowski KF, Stocke JE. Rollover and drop tests: the influence of roof strength on injury mechanics using belted dummies. In: Proceedings of the 34th Stapp Car Crash Conference. November 4-7, 1990; Orlando, FL. Warrendale, PA: Society of Automotive Engineers:101-112. SAE 902314.
1997	Moffatt EA, Cooper ER, Croteau JJ, Parenteau C, Toglia A. Head excursion of seat belted cadaver, volunteers and Hybrid III ATD in a dynamic/static rollover fixture. In: Proceedings of the 41st Stapp Car Crash Conference. November 13-14, 1997; Lake Buena Vista, FL. Warrendale, PA: Society of Automotive Engineers:509-525. SAE 973347.
2003	Moffatt EA, Cooper ER, Croteau JJ, Orlowski KF, Marth DR, Carter JW. Matched-pair rollover impacts of rollcaged and production roof cars using the controlled rollover impact system (CRIS). In: Proceedings of the SAE World Congress & Exhibition. March 3-6, 2003; Detroit, MI. Warrendale, PA: Society of Automotive Engineers. SAE 2003-01-0172.
1995	Rains GC, Kanianthra JN. Determination of the significance of roof crush on head and neck injury to passenger vehicle occupants in rollover crashes. In: Proceedings of the SAE International Congress & Exposition. February 27–March 2, 1995; Detroit, MI. Warrendale, PA: Society of Automotive Engineers. SAE 950655.

Cited By (10)

Year	Entry
2011	Chen H, Zhang L, Wang Z, Yang KH, King AI. Biomechanics of the neck. In: Klika V, ed. Theoretical Biomechanics. InTech; 2011:385-402.
2009	Brumbelow ML, Teoh ER. Roof strength and injury risk in rollover crashes of passenger cars and SUVs. In: Proceedings of the 21st International Technical Conference on the Enhanced Safety of Vehicles (ESV). June 15-18, 2009; Stuttgart, Germany.
2013	Grzebieta R, Bambach M, McIntosh A, Mattos G, Simmons K, Rechnitzer G, Digges K. Replicating real world rollover crash injuries. In: Proceedings of the 23rd International Technical Conference on the Enhanced Safety of Vehicles (ESV). May 27-30, 2013; Seoul, South Korea.
2007	Hu J, Yang KH. Finite element investigation of head and neck injury mechanism during rollover crashes. In: Proceedings of the 35th International Workshop on Human Subjects for Biomechanical Research. 2007.93-110.
2012	Dennison CR, Saari A, Zhu Q, Nelson TS, Morley P, Itshayek E, Oxland TR, Cripton PA. Follower load influences the kinematics and kinetics of cervical spine buckling during simulated head first impact: an ex vivo study. In: Proceedings of the 8th Ohio State University Injury Biomechanics Symposium. May 13-15, 2012; Columbus, OH.
2013	Bambach MR, Grzebieta RH, McIntosh AS, Mattos GA. Cervical and thoracic spine injury from interactions with vehicle roofs in pure rollover crashes. Accid Anal Prev. January 2013;50:34-43.
2008	Hu J, Yang KH, Chou CC, King AI. A numerical investigation of factors affecting cervical spine injuries during rollover crashes. Spine. November 1, 2008;33(23):2529-2535.
2013	Lockerby JW. Roof Deformation in Vehicle Rollover: The Case for Including an Energy Criterion in Vehicle Crashworthiness Evaluation [Master's thesis]. Charlottesville, VA: University of Virginia; December 2013.
2007	Hu J. Neck Injury Mechanism in Rollover Crashes: A Systematic Approach for Improving Rollover Neck Protection [PhD thesis]. Detroit, MI: Wayne State University; 2007.
2013	Toomey DE. Cervical Spine Tolerance and Response in Compressive Loading Modes Including Combined Compression and Lateral Bending [PhD thesis]. Detroit, MI: Wayne State University; May 2013.