TABLE 4.

Transfusion and microchimerism characteristics of patients with repeatable low level microchimerism

			Male leukocytes / 10000 recipient leukocytes, initial / repeat results
Characteristic	Components transfused*, n	Male donor blood, n (Non-IRR, n)	Pre-transfusion	Post-transfusion
Pediatric				4-wks	8-wks	12-wks	24-wks
A	4	4 (3)		4.3 / 3.2	0 / NA†
B	3	0 (0)		1.7 / 3.2	0 / NA
C	4	3 (2)	NS§	0.03 / 7.5	NS	NS	NS
D	1	0 (0)		3.03 / 0.7	2.9 / 0
E	2	1 (1)	NS	0 / NA	28.6 / 1.6	0	NA
F	5	1 (1)	0	1.01 / 0.5	NS	NS	0.2
G	2	2 (2)	NS	NS	0.5 / 1.3	0	NA
Adult
H	7	5 (0)		0.02 / 0.4	0 / NA
I	6	3 (0)	0	0 / NA	0.06 / 0.5	NS	NS
J	20	10 (0)	0	0 / NA	0.6 / 6.9	0	NA
K	9	7 (0)		0.1 / 0.5	0 / NA
L	10	4 (0)		0.03 / 0.4	0.03 / 0

^*Total number of components transfused from study entry up to collection of the 8-week post-transfusion blood sample.

^†NA = not applicable;

^§NS = no sample.