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Background: Trauma scoring systems are vital tools in assessing patient injuries and determining risk of mortality. This study was designed to test which score--the Injury Severity Score (ISS), the Trauma and Injury Severity Score (TRISS), TR1SS plus comorbidities (TRISSCOM) or the new International Classification of Disease (ICD-9)-Based Injury Severity Score (1CISS)--has the greatest predictive value at a Level 2 trauma center. Methods: In this retrospective chart review, data for 39 trauma deaths over a 30-month period were collected from the Stamford Hospital Trauma Registry. Results: Patients with ISS less than 15 who later died were significantly older than patients with ISS from 15 to 24 (P= 0.038) and ISS of 25 (P= 0.013). Line TR1SSCOM and a modification further stratifying age both produced significantly lower mean survival predictions when compared to other scores (P= 0-0.041). Only the modified …