Table 3.

Discrimination of the prehospital risk score in the primary model, alternative definitions of critical illness, and sensitivity analyses

	AUROC	95 % CI
Primary model	0.73	0.72–0.74
Alternative definitions of critical illness
In-hospital mortality	0.77	0.76–0.79
Any organ support event	0.72	0.71–0.73
Administrative claims	0.71	0.70–0.72
Sensitivity analyses
Worst vital signs	0.74	0.73–0.75
Longer than median transport distance	0.71	0.69–0.72
Excluding patients with Do Not Intubate orders	0.73	0.72–0.75
Model with reweighting of coefficients	0.73	0.72–0.74