. Author manuscript; available in PMC: 2023 Mar 1.

Published in final edited form as: J Trauma Acute Care Surg. 2022 Mar 1;92(3):499–503. doi: 10.1097/TA.0000000000003483

Table 1:

Evaluation of ICU LOS, use of blood products, and number of units PRBC based on scene vs. transfer status when considering only SI-EMS. Regression coefficients corresponding to analysis.

	Transfer Patients			Scene Patients			All Patients
	Days in ICU (Log Scale)	Use of any Blood product (Binomial Logistic)	Number of Units of PRBC (log scale)	Days in ICU (Log Scale)	Use of any Blood product (Binomial Logistic)	Number of Units of PRBC (log scale)	Mortality (Binomial Logistic)
Intercept	0.372 (0.219) .	−5.778 (1.543)***	−1.349 (0.726)	1.028 (0.110)***	−6.083 (0.747)***	1.447 (0.358)	−5.844 (1.021)***
Time	0.001 (.0002)***	0.001 (0.002)	0.000 (0.001)	−0.001 (.001)	0.001 (0.001)	−0.006 (.003)	0.001 (0.002)
SI-EMS	1.058 (.220)***	4.875 (1.599)**	2.167 (0.661)**	0.623 (0.129)***	5.147 (0.815)***	0.218 (0.637)	2.80 (1.228K)*
ΔSI (EMS-DC)				0.23 (0.145)	3.134 (0.782)***	0.637 (0.286)*	0.358 (1.451)
ΔSI (EMS-TX)	−0.388 (0.343)	2.254 (2.034)	1.219 (0.916)
ΔSI (Tx-DC)	0.4445 (0.231).	1.954 (1.216)	1.277 (0.441)**

The significance is indicated by p-value<0.10 (.), p-value<0.05 (*), p-value <0.01 (**), p-value <0.001 (***).