Prognosis research in people with traumatic bleeding

Prognosis research has played a major role in the development of approaches to the management of trauma. This is because of the need to identify those people who have a poor immediate prognosis if untreated and because of the many settings where choices have to be made on which patients to focus life-saving resources. This need for evidence-based triage based on prognostic information is particularly true for the problem of traumatic bleeding, and this chapter details the development and validation of a prognostic model and predictors of benefits or harms of treatment.