GCS score of 13–14 after 2-hour observation | 1 (1.32) | 5 (20.83) | 0.003 |
Open skull or base of skull fracture | 2 (2.63) | 5 (20.83) | 0.008 |
Vomiting >2 episodes | 6 (7.89) | 0 | 0.331 |
Focal neurological deficit | 1 (1.32) | 1 (4.76) | 0.391 |
Post-traumatic seizure | 1 (1.33) | 0 | 0.999 |
Age ≥60 years | 63 (82.89) | 13 (61.90) | 0.037 |
Decrease in GCS score of more than 2 without identifiable causes | 0 | 0 | NA |
High-energy trauma | 2 (2.67) | 0 | 0.999 |