Population | n/N | Standard GCS | Revised GCS | Difference | P value |
Mortality | 5306/135,084 | 0.755 | 0.800 | −0.045 | <0.001 |
Mortality, subsets | |||||
Isolated TBI* | 586/17,533 | 0.714 | 0.766 | −0.052 | <0.001 |
Not transferred | 4155/97,819 | 0.778 | 0.818 | −0.040 | <0.001 |
Fall cause of injury | 2910/59,860 | 0.710 | 0.761 | −0.051 | <0.001 |
Blunt mechanism | 4837/130,098 | 0.742 | 0.791 | −0.049 | <0.001 |
Penetrating injury | 469/4986 | 0.872 | 0.878 | −0.006 | 0.136 |
Neurosurgical procedure | 9504/135,084 | 0.645 | 0.657 | −0.013 | <0.001 |
Unfavorable disposition | 37,563/135,084 | 0.589 | 0.648 | −0.059 | <0.001 |
Bolding denotes statistical significance with < 0.001.
*Isolated TBI defined by AIS scores ≤1 in non-head regions. AIS scores were only documented in the NTDB for 17.0% of patients.
AIS, Abbreviated Injury Scale; AUROC, area under the receiver operator characteristic curve; GCS, Glasgow Coma Scale; NTDB, National Trauma Data Bank; TBI, traumatic brain injury.