Are prehospital deaths from trauma and accidental injury preventable? A summary report 19 4 Study two Research objectives and methodology Research objectives The first objective of this research was to examine the nature, cause and probability of survival in a cohort of prehospital deaths. A second objective was to identify which, if any, interventions might reduce the number of preventable deaths, with a view to informing first aid education. Methodology Several HM coroners5 were contacted with details of the study and a request for their support. After securing support from HM Senior Coroner for Cheshire and HM Senior Coroner for Manchester (City) and receiving ethical approval from the University of Manchester 5 All sudden, unexplained and violent or unnatural deaths that occur in the UK are referred to a coroner for the jurisdiction within which the death occurs for investigation.