Quantitative variables were summarized as mean, standard deviation (SD) and range, while frequency tables were used for categorical findings. The cut-off value for TICCS was obtained by Receiver Operating Characteristic curve analysis based on the severity of the patients. Group comparisons were done by Student t-test for continuous variables and by the chi-square test (or Fisher exact test) for categorical variables. Each trauma score was characterized by its sensitivity, specificity, positive and negative predicted values and area under the curve (AUC). Results were considered significant at the 5% critical level (P<0.05). Calculations were performed with the Statistical Analyses System statistical package for Windows (version 9.3).