Table 2. Neurosurgical intervention patients.

Neurosurgical intervention timing was either immediately upon emergency room disposition, planned urgently within 24 hours, or unexpected delayed.

EVD, external ventricular drain; BOLT, intracranial pressure monitor device; EDH, epidural hematoma; SDH, subdural hematoma; SAH, subarachnoid hemorrhage; IPH, intraparenchymal hemorrhage; IPC, intraparenchymal contusion

Intervention	Timing	Hemorrhage
Craniectomy: 11.3% (7/62)	Immediate: 64.5% (40/62)	EDH: 4.8% (3/62)
Craniotomy: 69.4% (43/62)	Planned: 19.7% (12/62)	SDH: 79.0% (49/62)
Burr Hole: 17.7% (11/62)	Delayed: 16.4% (10/62)	SAH: 1.61% (1/62)
EVD: 1.6% (1/62)		IPH: 6.5% (4/62)
BOLT: 0% (0/62)		IPC: 0% (0/62)
		Multiple: 8.1% (5/62)