Factors associated with outcomes.

The factors associated with survival and neurologic outcomes in the patients who achieved a sustained ROSC following ED resuscitation. CPC: cerebral performance categories; ICU: intensive care unit; VF: ventricular fibrillation; PEA: pulseless ventricular tachycardia; ROSC: return of spontaneous circulation; OHCA: out-of-hospital cardiac arrest; ED: emergency department. aThe number of patients with missing information. bVF includes patients with pulseless VT.