Table 3

- Categorical classification of each variable.

Witnessed/Bystander CPRWitnessed, Bystander CPRWitnessed, No bystander CPRNo witnessed
Initial rhythmShockableNonshockable 
Duration of resuscitation< 30min≥ 30min 
GCS-M> 2≤ 2 
Pupillary/corneal reflexYesNo 
GWR-basal ganglia≥ 1.201.15-1.19< 1.15
NSE (ng/ml)< 8080-159≥ 160
  • CPR- cardiopulmonary resuscitation; GCS-M- Glasgow Coma Scale motor score; GWR- gray-white matter ratio; NSE- neuron-specific enolase