Table 1.

Patient characteristics.

	Intervention	Control
N (intention to treat):	16	7
Demographics
Age (mean) (range 5–18)	11.3	13.9
Sex
Female	7	3
Male	9	4
Ethnicity
White	9	2
Asian	3	5
Hispanic	3	0
Other	1	0
Diagnoses
Congenital or acquired  Bone marrow failure	5	0
Hematologic malignancy	6	5
Congenital immune deficiency	3	1
Solid tumor	2	0
Hemoglobinopathy	0	1
Transplant type
Autologous  Allogeneic	13 3	6 1