This content is not included in
your SAE MOBILUS subscription, or you are not logged in.
Lower-Body Injury Rates in Full-Engagement Frontal Impacts: Field Data and Logistic Models
Technical Paper
2006-01-1666
ISSN: 0148-7191, e-ISSN: 2688-3627
Annotation ability available
Sector:
Language:
English
Abstract
Lower-body injury data for adults in real-world frontal impacts in the National Automotive Sampling System (NASS) were collected, analyzed, and modeled via statistical methods. Two levels of lower-body injury were considered: maximum serious-to-fatal (MAIS3+) and moderate-to-fatal (MAIS2+). In the analysis, we observed that a substantial fraction of all lower-body injured occupants had no recorded floor/toe pan intrusion: 47% of all MAIS3+ injured occupants; 69% of all MAIS2+ injured occupants. In the statistical modeling, we developed binary logistic regression models to fit the MAIS3+ and MAIS 2+ injury data. The statistically significant variables (p ≤ 0.05) were the speed change of the crash, postcrash floor/toe pan intrusion, level of restraint, occupant age, and occupant gender. The two resulting models demonstrated different levels of fidelity: the Goodman-Kruskal Gamma statistic of association was 0.84 for the MAIS3+ model and 0.60 for the MAIS2+ model (where 1.0 is perfect association). However, the two statistical models identically predicted the total number of lower-body injured occupants in NASS. These analyses and statistical models provided insight into the effect of various crash variables on lower-body risks.
Recommended Content
Authors
Citation
Laituri, T., Henry, S., Sullivan, K., and Prasad, P., "Lower-Body Injury Rates in Full-Engagement Frontal Impacts: Field Data and Logistic Models," SAE Technical Paper 2006-01-1666, 2006, https://doi.org/10.4271/2006-01-1666.Also In
SAE 2006 Transactions Journal of Passenger Cars: Mechanical Systems
Number: V115-6; Published: 2007-03-30
Number: V115-6; Published: 2007-03-30
References
- Prasad, P. Laituri, T. Sullivan, K. “Estimation of AIS3+ Thoracic Risks of Belted Drivers in NASS Frontal Crashes,” Journal of Automobile Engineering, Paper No. D15603 2004
- Thomas, P. Bradford, M. Charles, J. Fay, P. “Lower Limb Injuries - The Effect of Intrusion, Crash Severity and the Pedals on Injury Risk and Injury Type in Frontal Collisions,” Proceedings of the Thirty-Ninth Stapp Car Crash Conference, SAE Paper No. 952728 1995
- Jibril, A. Prasad, P. Prybylski, J. Grush, E. “Logistic Regression Analysis of Lower Limb Injuries in Frontal Crashes,” 16 th International Technical Conference on the Enhanced Safety of Vehicles, Paper No. 98-S6-W-43 1998
- Banglmaier, R. Rouhana, S. Beillas, P. Yang, K.H. “Lower Extremity Injuries in Lateral Impact: A Retrospective Study,” 47 th Annual Proceedings AAAM 2003
- Laituri, T. Kachnowski, B. Prasad, P. Sullivan, K. Przybylo, P. “A Theoretical Risk Assessment Procedure for In-Position Drivers Involved in Full-Engagement Frontal Impacts,” SAE paper No. 2003-01-1354 2003
- Association for the Advancement of Automotive Medicine, Committee on Injury Scaling The Abbreviated Injury Scale—1990 Revision (AIS-90) Des Plains, IL Association for the Advancement of Automotive Medicine 1990
- Zhou, Q. Rouhana, S. Melvin, J. “Age Effects on Thoracic Injury Tolerance,” SAE Paper No. 962421 , 40 th Stapp Car Crash Conference 1996
- SAS, v 9.1 SAS Institute Inc. Cary, NC 2002
- Matsumoto, H. Sakakida, M. Kurimoto, K. “A Parametric Evaluation of Vehicle Crash Performance,” SAE Paper No. 900465 1990
- Prasad, P. Smorgonsky, L. “Comparative Evaluation of Various Frontal Test Procedures,” SAE Paper No. 950646 1995
- Kuppa, S. Wang, J. Haffner, M. Eppinger, R. “Lower Extremity Injuries and Associated Injury Criteria,” Proceedings of the 17 th International Technical Conference on the Enhanced Safety of Vehicles, Paper No. 457, NHTSA 2001