응급실 내원 외상환자에 대한 TRISS Method 와 ASCOT Method의 비교분석

TRISS Method has been used for means of case identification of trauma patients. This method combines three variables associated with injury severity-Injury Serverity Score (ISS), Trauma Score (TS), and Age. But this method has limitations. So in recent years ASCOT was developed by Champion et al. To adress known limitation to TRISS and ASCOT method provides a more precise description of patients physiologic status and injury number, location, and severity than TRISS. From September 1993 to February 1992, 192 patients with traumatic injury via Emergency Room, Kyang Hee University Hospital were collected and compared the results between TRISS Method and ASCOT Method using probability of survivals, and disparity, sensitivity, specificity, Z-statistics. The results were as follows l. Average probability of survival by TRISS and ASCOT was 0. 9800 and 0. 9830 respectively. 2. Disparity using TRISS and ASCOT was 0. 3268 and 0. 3087 respectively. 3. Sensitivity using TRISS and ASCOT was 33.3% and 33.3% respectively. 4. Specificity using TRISS and ASCOT was 98.9% and 99.4% respectively. 5. Z-statics using TRISS and ASCOT was +1. 3329 and +l. 295 respectively. The authors concluded that there was relatively small gain in predictive accuracy by ASCOT over TRISS but no significant difference and we should develop future models that include additional variables, stratify patients by several injury cause and use decision rules to select variables and variable weights.