Table 3.

Cox multivariate regression model of association between perioperative red blood cell transfusion and postoperative outcomes.

	Adjusted HR#	95% CI	P
Inhospital mortality, n (%)	2.8	1.5–5.1	0.001
1-year mortality, n (%)	2.0	1.4–2.7	<0.001
Long-term mortality, n (%)	2.2	1.8–2.8	<0.001

HR, hazard ratio; 95% CI, 95% confidence interval.

^#Adjusted for significant variables include age, sex, BMI, comorbidity (hypertension, chronic heart failure, and chronic kidney disease), blood gas results (pH value, base excess, anion gap, bicarbonate, and lactate), laboratory tests (white blood cell count, platelets count, hemoglobin, serum creatinine, and international normalized ratio), SOFA score, and SIRS score.