. Author manuscript; available in PMC: 2016 Nov 1.

Published in final edited form as: J Trauma Acute Care Surg. 2015 Nov;79(5):843–849. doi: 10.1097/TA.0000000000000834

Table 4. Cox Regression Analysis-average age of RBCs Adjusted for Pre-specified Covariates.

Mortality	Hazard Ratio	95% Confidence Interval	p-value

RBC (average) >21 days	1.35	0.61 -2.98	0.46
Epo1 regimen (compared to Placebo)	1.17	0.40-3.45	0.77
Epo2 regimen (compared to Placebo)	1.13	0.43-2.97	0.78
Transfusion Threshold <10 g/dL (compared to TT7)	1.03	0.47-2.30	0.94
Injury Severity Score	1.01	0.97-1.05	0.79
IMPACT probability of Death	1.05	1.02-1.07	<.0001