title: Bayesian Decision Trees for predicting survival of patients: a study on the US National Trauma Data Bank.
abstract: Trauma and Injury Severity Score (TRISS) models have been developed for predicting the survival probability of injured patients the majority of which obtain up to three injuries in six body regions. Practitioners have noted that the accuracy of TRISS predictions is unacceptable for patients with a larger number of injuries. Moreover, the TRISS method is incapable of providing accurate estimates of predictive density of survival, that are required for calculating confidence intervals. In this paper we propose Bayesian inference for estimating the desired predictive density. The inference is based on decision tree models which split data along explanatory variables, that makes these models interpretable. The proposed method has outperformed the TRISS method in terms of accuracy of prediction on the cases recorded in the US National Trauma Data Bank. The developed method has been made available for evaluation purposes as a stand-alone application.
authors.affiliation: Department of Computer Science and Technology, University of Bedfordshire, UK. vitaly.schetinin@beds.ac.uk
authors.forename: Vitaly
authors.initials: V
authors.lastname: Schetinin
authors.forename: Livia
authors.initials: L
authors.lastname: Jakaite
authors.forename: Janis
authors.initials: J
authors.lastname: Jakaitis
authors.forename: Wojtek
authors.initials: W
authors.lastname: Krzanowski
mesh_terms: D000367:Age Factors; D000465:Algorithms; D001499:Bayes Theorem; D003663:Decision Trees; D005260:Female; D006801:Humans; D008297:Male; D011336:Probability; D016019:Survival Analysis; D035501:Uncertainty; D014481:United States / Q000453:epidemiology; D014947:Wounds and Injuries / Q000401:mortality / Q000503:physiopathology*
keywords: Bayesian prediction; Classification tree; Markov chain Monte Carlo; Survival probability; Trauma care