A preliminary study on factors of trauma outcomes in Chinese patients

    WANG Yuª²Kun, XUE Fuª²Bo, DU Xiaoª²Han, XU Yongª²Yong

    Department of Health Statistics, School of Preventive Medicine, Fourth Military Medical University, Xi¬ðan 710033, China

    ¡¾Abstract¡¿ AIM: To review some important factors affecting the outcomes of trauma patients and to screen variables for the predictive model of trauma outcomes so that a new trauma scaling model more applicable to Chinese patients can be established. METHODS: The database of discharge abstracts of trauma patients from more than 200 hospitals nationwide was used and a logistic regression model was fitted with the outcomes of patients as response and other 9 factors as predictors, including the anatomic injury severity grade by ISS value. A stepwise regression method was used to select the variables and their parameters were estimated. RESULTS: Six factors, namely, anatomic injury severity grade, complication status, age group, identity, operation status and financial support status were selected into the logistic regression model (P<0.05). Several interactive effects were also selected in the model (P<0.05). CONCLUSION: The anatomic injury severity grade is the most important factor affecting the outcomes of trauma patients, followed by the complication status and age. The effects of other factors are not so obvious and should be further analyzed. ......