Table 2.

Comparison of Patients Achieving the 1999 Mechanism of Injury Criteria vs. the 2006 Mechanism of Injury Criteria

1999 SCHEME		CRITERIA	2006 SCHEME
# of Patients	Included in 1999		Included in 2006	# of Patients
38	Included	Ejection from automobile	Included	37
25	Included	Death in the same passenger compartment	Included	25
202	Included	Intrusion >12 inches	Changed to: >12in patient side, >18in other sides	142
---	Not included	Vehicle telemetry data	Included	not available
105	Included	Extrication time >20 minutes	Removed	---
524	Included	Rollover	Removed	---
970	Included	Initial speed >40 mph	Removed	---
457	Included	Deformity >20 inches	Removed	---
36	Included	Fall >20 feet	Included	35
314	Included	Auto-pedestrian/bicycle >5 mph	Changed to: >20 mph	155
180	Included	Pedestrian thrown or run over	Included	176
387	Included	Motorcycle crash >20 mph or separation of rider from bike	Removed: separation of rider from bike	306