Fig. 1

Assigned Tasks when the Citizen Responder Arrived Before EMS. The figure illustrates the percentage (%) of emergency physicians who continued to use the citizen responder’s help if the citizen responder was already at the out-of-hospital cardiac arrest (OHCA) scene upon their arrival (n = 53). It illustrates what tasks the emergency physicians assigned to the citizen responder; controlling the automated defibrillator (AED use), carrying equipment, continued chest compressions (CPR), ‘Other’ tasks (the only person answering “Other” explained this by “holding the infusion set”) or talking to relatives (Relatives). More than one option could be checked