. Author manuscript; available in PMC: 2015 Jan 1.

Published in final edited form as: Transfusion. 2013 May 21;54(1):42–48. doi: 10.1111/trf.12252

Table 5. Results of Multivariate Analysis.

Results of multivariate logistic regression to identify predictors of transfusion. Odds ratios for hemoglobin are calculated for every 1g/dl increase in hemoglobin concentration. Odds ratios for age are calculated for every 1-year increase in age.

Predictors of Preoperative Transfusion
	Odds Ratio	95% CI	p-value
Hemoglobin	0.39	0.25-0.55	<0.0001
Potential Blood Loss	3.73	1.06-13.2	0.041

Predictors of Intraoperative Transfusion
	Odds Ratio	95% CI	p-value
Potential for Significant Blood Loss	10.7	3.73-33.8	<0.0001
Age	1.03	1.01-1.06	0.016
Preoperative Hemoglobin	0.697	0.50-0.41	0.018