Dr, Department of Medicine, Emory University, Atlanta, Georgia
Research Article
Machine Learning Methods to Predict Survival in Patients Following Traumatic Aortic Injury
Author(s): Nisreen Shiban*, Justin Schrager, Joshua Gaul, Andrew Elhabr, Henry Zhan, Nima Kokabi, Jamlik-Omari Johnson, Tarek Hanna, Judy Gichoya, Imon Banerjee and Hari Trivedi
The National Trauma Data Bank (NTDB) is a resource of diagnostic, treatment, and outcomes information
in trauma patients. We leverage the NTDB and machine learning techniques to predict survival following
traumatic aortic injury. We create two predictive models using the NTDB–1) using all data and, 2) using
only data available in the first hour after arrival (prospective data). Seven discriminative model types were
tested before and after feature engineering to reduce dimensionality. The top performing model was XG
Boost, achieving an overall accuracy of 0.893 using all data and 0.855 using prospective data. Feature
engineering improved performance of all models. Glasgow Coma Scale score was the most important
factor for survival, and thoracic endovascular aortic repair was more common in patients that survived.
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