Table 2.

Description of participants by group

Participant group	Description
ED medical director	Partner researcher and senior medical officer responsible for delivery of ED medical services and for supporting implementation
ED nurse unit manager	Emergency department nurse manager with detailed knowledge of ED clinical operation.
ED clinical champion	Senior emergency nurse clinician/educator from participating hospital’s ED appointed as clinical champion to support intervention implementation and liaise with the Trial State Co-ordinator
Stroke unit clinical champion	Senior nurse clinician or educator from participating hospital’s stroke unit appointed as clinical champion to support intervention implementation and liaise with ED clinical champion
ED nurse	Nurses involved in delivery of emergency care
Trial state co-ordinator	Nurse/psychology graduate employed to provide support to intervention sites to address barriers (one co-ordinator each for New South Wales/Australian Capital Territory, Victoria and Queensland)