Abstract
This research aimed to propose a logistic regression model for Japanese blunt trauma victims. First, we tested whether the logistic regression model previously created from data registered in the Japan Trauma Data Bank (JTDB) between 2005 and 2008 is still valid for the data from JTDB between 2009 and 2013. The model was proved to be highly accurate (94.56%) and valid. We also demonstrated that the model remains valid without respiratory rate (RR) data. In addition, we demonstrated that the model would maintain high accuracy even when its coefficients were rounded off to two decimal places. As a result of our investigation, we propose the equation of survival prediction in Japan to be Ps=1/ (1+e-b) b=-0.76+1.03×Revised Trauma Score-0.07×Injury Severity Score-0.04×age.
