Trial Participants and Coaches
nontrauma, trauma
To recruit participants for the study, we contacted physicians who had previously participated in our research and asked them to refer us to 2 colleagues. We sought board-certified emergency physicians who treated adult patients in the emergency department of either a nontrauma center or a Level III or IV trauma center in the US and who therefore would have responsibility for performing trauma triage in their clinical practice. Respondents received a screening questionnaire with details about the trial, a consent form, and items querying their demographic characteristics. Racial and ethnic categories were specified by the study team based on National Institutes of Health criteria.