Table 2. Percentage of RBCs expressing lactadherin and CD47 expression in mean fluorescent intensity (MFI) on transfused, untransfused and in vitro biotin labelled RBCs.

		Before Transfusion		After Transfusion
		Unlabeled and untransfused RBCs sampled from circulation	BioRBCs only	Unlabeled RBCs from circulation	BioRBCs isolated from circulation
Membrane bound Lactadherin (%)	Control	1.10 (0.07-1.43)	N/A	1.10 (0.67-1.73)	N/A
	2D RBCs	0.40 (0-2.02)	1.10 (0.05-1.82)	0.40 (0.00-2.65)	1.85 (0.84-3.26)
	35D RBCs	0.60 (0.03-1.29)	0.63 (0-5.32)	0.55 (0.12-1.30)	0.30 (0.00-1.06)
CD47 (MFI)	Control	2383 (2091-2446)	N/A	1998 (1766-2088)	N/A
	2D RBCs	1582 (890-1820)	1690 (1360-1951)	1582 (1001-1948)	1542 (1196-2106)
	35D RBCs	1309 (1161-1567)	1599 (1533-1666)	1309 (1180-1684)	1497 (1313-1817)

^*The column “Before Transfusion” describes the background lactadherin and CD47 expression on naïve RBCs drawn from the circulation and BioRBCs directly after labeling. The column “After Transfusion” describes the sample which has been drawn after transfusion from which both BioRBCs and unlabeled RBCs have been isolated. Values are expressed as medians and confidence intervals between brackets.