The assessment of comatose patients is an important part of critical care. The assessment of the level of coma relies on clinical scores. The Glasgow Coma Scale (GCS),remains the most commonly used scoring system for altered state of consciousness. Despite its widespread use, a number of limitations have been identified with GCS like inability to assess verbal score in intubated patients and non-inclusion of vital brainstem functions. The FOUR (Full Outline of UnResponsiveness) score, a coma scale consisting of four components (eye response, motor response, brainstem reflexes, and respiration pattern) was recently proposed by investigators from the Mayo Clinic.keeping in view the limitations of GCS, this study was planned to compare the new FOUR score with GCS as a predictor of mortality and poor functional outcome at hospital discharge.