Care intensity of spontaneous intracranial hemorrhage: Effectiveness of the critical care resuscitation unit

•The Critical Care Resuscitation Unit provides high care intensity.•The Critical Care Resuscitation Unit further reduces patients' blood pressure variability.•Older age, higher GCS, and mechanical ventilation prior to transfer are associated with need for higher care intensity.•Increased age and high acuity based on the Emergency Severity Index during ED stay are associated with high mortality.•High maximum systolic blood pressures, history of hypertension, and male gender are factors associated with AKI.