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Defining the "older" crash victim: the relationship between age and serious injury in motor vehicle crashes.
Accid Anal Prev. 2008 Jul; 40(4):1498-505.AA

Abstract

OBJECTIVE

Age is often used as a predictor of injury and mortality in motor vehicle crashes (MVCs), however, the age that defines an "older" occupant in terms of injury-risk remains unclear, as do specific injury patterns associated with increasing age. The objective of this study was to evaluate the relationship between age and serious injury (including injury patterns) for occupants involved in MVCs.

METHODS

This was a retrospective cohort study using a national population-based cohort of adult front-seat occupants involved in MVCs and included in the National Automotive Sampling System Crashworthiness Data System database from 1995 to 2006. The primary outcome was serious injury, defined as an abbreviated injury scale (AIS) score >/=3 in any body region. Anatomic injury patterns were also assessed by age.

RESULTS

One hundred thousand one hundred and fifty-six adult front-seat occupants were included in the analysis, of which 14,128 (2%) were seriously injured. Age was a strong predictor of serious injury using a variety of different age covariates (categorical, continuous, and polynomial) in multivariable regression models (p<0.0001 for all). There was evidence of a strong non-linear relationship between age and serious injury (p<0.001 for comparison of non-linear to linear representation of age). There was no age that clearly defined an "older" occupant by injury risk, as the odds of injury increased with increasing age across all age groups. The proportion of serious head and extremity injuries gradually increased with increasing age, while serious chest injuries markedly increased after 60 years.

CONCLUSIONS

Age is a strong predictor of serious injury from motor vehicle trauma, the risk of which increases in non-linear fashion as age increases. There is no specific age that clearly defines an "older" occupant by injury risk.

Authors+Show Affiliations

Center for Policy and Research in Emergency Medicine, Department of Emergency Medicine, Oregon Health & Science University, 3181 SW Sam Jackson Park Road, Portland, OR 97239-3098, USA. newgardc@ohsu.edu

Pub Type(s)

Journal Article

Language

eng

PubMed ID

18606283

Citation

Newgard, Craig D.. "Defining the "older" Crash Victim: the Relationship Between Age and Serious Injury in Motor Vehicle Crashes." Accident; Analysis and Prevention, vol. 40, no. 4, 2008, pp. 1498-505.
Newgard CD. Defining the "older" crash victim: the relationship between age and serious injury in motor vehicle crashes. Accid Anal Prev. 2008;40(4):1498-505.
Newgard, C. D. (2008). Defining the "older" crash victim: the relationship between age and serious injury in motor vehicle crashes. Accident; Analysis and Prevention, 40(4), 1498-505. https://doi.org/10.1016/j.aap.2008.03.010
Newgard CD. Defining the "older" Crash Victim: the Relationship Between Age and Serious Injury in Motor Vehicle Crashes. Accid Anal Prev. 2008;40(4):1498-505. PubMed PMID: 18606283.
* Article titles in AMA citation format should be in sentence-case
TY - JOUR T1 - Defining the "older" crash victim: the relationship between age and serious injury in motor vehicle crashes. A1 - Newgard,Craig D, Y1 - 2008/04/21/ PY - 2007/12/07/received PY - 2008/03/21/revised PY - 2008/03/24/accepted PY - 2008/7/9/pubmed PY - 2008/10/11/medline PY - 2008/7/9/entrez SP - 1498 EP - 505 JF - Accident; analysis and prevention JO - Accid Anal Prev VL - 40 IS - 4 N2 - OBJECTIVE: Age is often used as a predictor of injury and mortality in motor vehicle crashes (MVCs), however, the age that defines an "older" occupant in terms of injury-risk remains unclear, as do specific injury patterns associated with increasing age. The objective of this study was to evaluate the relationship between age and serious injury (including injury patterns) for occupants involved in MVCs. METHODS: This was a retrospective cohort study using a national population-based cohort of adult front-seat occupants involved in MVCs and included in the National Automotive Sampling System Crashworthiness Data System database from 1995 to 2006. The primary outcome was serious injury, defined as an abbreviated injury scale (AIS) score >/=3 in any body region. Anatomic injury patterns were also assessed by age. RESULTS: One hundred thousand one hundred and fifty-six adult front-seat occupants were included in the analysis, of which 14,128 (2%) were seriously injured. Age was a strong predictor of serious injury using a variety of different age covariates (categorical, continuous, and polynomial) in multivariable regression models (p<0.0001 for all). There was evidence of a strong non-linear relationship between age and serious injury (p<0.001 for comparison of non-linear to linear representation of age). There was no age that clearly defined an "older" occupant by injury risk, as the odds of injury increased with increasing age across all age groups. The proportion of serious head and extremity injuries gradually increased with increasing age, while serious chest injuries markedly increased after 60 years. CONCLUSIONS: Age is a strong predictor of serious injury from motor vehicle trauma, the risk of which increases in non-linear fashion as age increases. There is no specific age that clearly defines an "older" occupant by injury risk. SN - 0001-4575 UR - https://www.unboundmedicine.com/medline/citation/18606283/Defining_the_"older"_crash_victim:_the_relationship_between_age_and_serious_injury_in_motor_vehicle_crashes_ L2 - https://linkinghub.elsevier.com/retrieve/pii/S0001-4575(08)00054-7 DB - PRIME DP - Unbound Medicine ER -