The probability of death score:​ an improvement of the injury severity score

Somers, Ronald L.

Affiliations

¹Accident Analysis Group, Laboratory for Public Health and Health Economics, Odense University Hospital, DK-5000 Odense C., Denmark

Abstract

Two data sets containing detailed AIS trauma codes were utilized to test the Injury Severity Score and to develop an improved method for relating AIS codes to mortality. Using logistic regression analysis the properties of an excellent "Probability of Death Score" were defined. As compared to the Injury Severity Score the Probability of Death Score 1) is based on a finer division of the body into regions, 2) is not limited to the use of just one AIS code per body region, 3) includes a precise age factor, 4) utilizes weighted rather than squared AIS codes, and 5) incorporates two rather than three AIS codes. The Probability of Death Score was statistically superior to the Injury Severity Score on both data sets. The marked tendency for the Injury Severity Score to disregard relevant AIS codes was analyzed.

Cited Works (7)

Year	Entry
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Cited By (4)

Year	Entry
1989	Copes WS, Sacco WJ, Champion HR, Bain LW, Gann DS, MacKenzie E, Schwaitzberg S, Gennarelli T. Progress in characterizing anatomic injury. In: 33rd Annual Proceedings, Association for the Advancement of Automotive Medicine (AAAM). October 2-4, 1989; Baltimore, MD.205-218.
1982	Bunketorp O, Nilsson W, Romanus B. Traffic accident registration and analysis in Göteborg. In: Proceedings of the 1982 International IRCOBI Conference on the Biomechanics of Impact. September 8-10, 1982; Cologne, Germany.61-75.
1984	MacKenzie EJ. Injury severity scales: overview and directions for future research. Am J Emerg Med. November 1984;2(6):537-549.
2005	Forbes PA. Development of a Human Body Model for the Analysis of Side Impact Automotive Thoracic Trauma [Master's thesis]. University of Waterloo; 2005.