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Evaluating the discriminatory power of a computer-based system for assessing penetrating trauma on retrospective
Michael E Matheny1, Omolola I Ogunyemi, Phillip L Rice
1Decision Systems Group, Brigham & Women's Hospital, Boston, MA, USA.
Objective:
To evaluate the discriminatory power of TraumaSCAN-Web, a system for assessing penetrating trauma, using retrospective multi-center case data for gunshot and stab wounds to the thorax and abdomen.
Methods:
80 gunshot and 114 stab cases were evaluated using TraumaSCAN-Web. Areas under the Receiver Operator Characteristic Curves (AUC) were calculated for each condition modeled in TraumaSCAN-Web.
Results:
Of the 23 conditions modeled by TraumaSCAN-Web, 19 were present in either the gunshot or stab case data. The gunshot AUCs ranged from 0.519 (pericardial tamponade) to 0.975 (right renal injury). The stab AUCs ranged from 0.701 (intestinal injury) to 1.000 (tracheal injury).