Fig. 3

Decision curves associated with each model. The curves to the right are the same as in the left graph, but separated to better visualise and help compare curve shape. The basic model included only systolic blood pressure and Glasgow coma scale [22]. The basic + HR model included heart rate in addition to systolic blood pressure and Glasgow coma scale [22]. Kondo’s model included Glasgow coma scale, age, and systolic blood pressure [10], as did Perel’s model [8]. The systolic blood pressure model included only systolic blood pressure and the Glasgow coma scale model included only Glasgow coma scale. Abbreviations: GCS Glasgow Coma Scale, HR Heart Rate, SBP Systolic Blood Pressure