Definition of favourable neurological outcomes (Cerebral Performance Category Score 1–2)
| CPC score 1 good cerebral performance | Conscious, alert, able to work and lead a normal life. May have minor psychological or neurological deficits (mild dysphasia, non-incapacitating hemiparesis, or minor cranial nerve abnormalities). |
| CPC Score 2 Moderate Cerebral Disability | Conscious. Sufficient cerebral function for part-time work in sheltered environment or independent activities of daily life (dress, travel by public transportation, food preparation). May have hemiplegia, seizures, ataxia, dysarthria, dysphasia, or permanent memory or mental changes. |
| CPC Score 3 Severe Cerebral Disability | Conscious; dependent on others for daily support (in an institution or at home with exceptional family effort). Has at least limited cognition. This category includes a wide range of cerebral abnormalities, from patients who are ambulatory but have severe memory disturbances or dementia precluding independent existence to those who are paralysed and can communicate only with their eyes, as in the locked-in syndrome. |
| CPC Score 4 Coma/Vegetative State | Unconscious, unaware of surroundings, no cognition. No verbal or psychological interaction with environment. |
| CPC Score 5 Certified brain dead or dead | Certified brain dead or dead by traditional criteria. |
Retrieved from Ajam et al: Reliability of the cerebral performance category to classify neurological status among survivors of ventricular fibrillation arrest: a cohort study. Scand J Trauma Resusc Emerg Med 2011 19:38.