Table 3.

Mortality and Injury Severity by Scene Mobility Characteristics.

	Development Set*		All cases
	Mortality (%)	ISS>15 (%)	Mortality (%)	ISS>15 (%)
Ejected	6.86	33.4	9.75	36.3
Removed with ↓ mental status	5.14	24.0	4.91	21.6
Removed due to perceived injury	1.22	8.7	1.07	8.9
Exited with minimal assistance	0.01	1.3	0.01	1.3
Self exited	0.06	1.2	0.03	1.1
Unknown	0.51	3.5	0.47	3.6

^*Development set N=2,310,063, random (48.88%) sample of the entire cohort.