Table 4:

Factors Associated with Emergency Department (ED) Intracranial Pressure (ICP) Monitor Placement (N=65) Among Four Trauma Centers (Centers 2–5) Which Placed ICP monitor in the ED (Total N = 123).

Factors	aRR (95% CI)*
Age (years)
< 1y	1 [Reference]
1 to 4	1.53 (0.77, 3.04)
5 to 12	1.60 (0.80, 3.22)
13 to 17	2.02 (1.37, 2.98)
ED Length of stay (LOS)	1.15 (1.08, 1.21)
Trauma center designation
Adult and pediatric I/II	1 [Reference]
Pediatric only I/II	1.71 (1.48, 1.98)
Mean pediatric TBI patient volume per center≠
< 200	1 [Reference]
≥ 200	1.88 (1.68, 2.11)

*aRR is adjusted relative risk with 95% confidence interval for factors associated with ED ICP monitor placement