Table 1.

Summary of key points of comparison between civilian and military mTBI.

	Civilian mTBI	Military mTBI
Typical time since injury at diagnosis	Hours to days	Months to years
Goals of diagnosisa	Documentation of injury, prospective monitoring of course, direct acute care to limit progression and speed recovery	Documentation of injury, identify potential PCS, identify those at risk for progressive neurodegeneration
Involvement of trauma	Common, typically limited to event, may affect reporting	Common, often extends beyond mTBI event (e.g., securing self, others, and equipment following explosion), may confound with experience and reporting of mTBI symptoms (e.g., difficult to differentiate altered consciousness from confusion of threatening situation)

^aAt typical time of diagnosis (i.e., hours to days for civilian mTBI, months to years for military mTBI).