Table 2

Plasma non-transferrin bound iron before and after blood transfusion (BT) in preterm and full term infants

Patient number		Bleomycin detectable iron (μM)				Ferrous iron activity (μM)
Patient number		Before BT	After BT			Before BT	After BT
Preterm infants
1	2.5	5.6		ND	ND
2	0	1.7		45.0	52.2
3	0	3.8		21.0	16.7
4	0	2.6		ND	ND
5	0	2.1		59.0	62.3
6	0	0		7.9	9.5
7	0	0.2		0	4.7
8	0	0		2.8	5.6
9	0	0		2.9	6.3
10	0	0		19.2	14.0
11	1.1	0.8		4.9	11.6
12	0	5.6		7.3	8.5
13	0.3	2.3		21.6	30.4
14	0	0.6		46.0	51.8
15	2.2	3.1		30.2	31.4
16	2.5	6.3		6.1	8.7
17	4.5	20.7		11.2	59.7
18	0	1.7		8.9	1.5
19	0	0.8		12.2	14.4
20	0	4.2		2.9	26.0
21	3.4	3.5		67.6	80.4
Median	0.0	2.1^2-151		11.2	14.4
p^2-150	0.005			0.016
Full term infants
1	0	0		10.2	8.2
2	0	0		14.4	10.6
3	0	0		0.3	0.2
4	0	0.2		7.5	11.7
5	0	0		2.8	6.5
6	0	0		0.2	6.3
Median	0	0		5.2	7.4
p^2-150				0.463

↵2-150 Values obtained before and after transfusion were compared by the Wilcoxon signed rank test.
↵2-151 p < 0.05 v full term infants after transfusion (Mann-Whitney U test).
ND, Not done.