Table 1.

Diagnostic criteria for the classification of TBI severity

Diagnostic criteria	Mild	Moderate	Severe
Altered level or loss of consciousness	GCS 13–15 and/or any LOC<30 min	GCS 9–12 and/or 30 min≤LOC≤6 h	GCS 3–8 and/or LOC>6 h
PTA	Any PTA<24 h	24 h≤PTA≤7 day	PTA>7 day
Neuroradiological findings due to TBI	No findings	Neuroradiological TBI findings	Neuroradiological TBI findings and neurosurgical operation
Neuropsychological findngs due to TBI	MoCA>18	14≤MoCA≤18	MoCA<14

TBI, traumatic brain injury; GCS, Glasgow Coma Scale; LOC, loss of consciousness; PTA, posttraumatic amnesia; MoCA, Montreal Cognitive Assessment.