Table 1. Patient and graft characteristics.

Number of patients	65
Age in years, median (range)	46 (6-68)
Weight in kilograms, median (range)	80.8 (22.1-124.3)
Male	40 (61%)
Recipient CMV positive	27 (42%)
Histology
Follicular lymphoma/CLL	20 (31%)
Large cell/mantle cell lymphoma	22 (34%)
Hodgkin's lymphoma	23 (35%)
Pre-transplant hematologic function
White blood cell count, median (range)	5,500 × 109/L (0.3-24)
Absolute neutrophil count, median (range)	3,600 × 109/L (0.2-15)
Platelet count, median (range)	171 × 109/L (13-422)
Number of UCB units in the graft
One UCB unit	9 (14%)
Two UCB units	56 (86%)
HLA matching to recipients
6/6 or 6/6 + 6/6	3 (5%)
6/6 + 5/6	3 (5%)
5/6 or 5/6 + 5/6	14 (21%)
5/6 + 4/6	20 (31%)
4/6 or 4/6 + 4/6	25 (38%)
Sex match (donor-recipient)*
Matching	19 (29%)
Mismatching	46 (71%)
ABO blood type (donor-recipient)*
Matched	10 (15%)
Mismatched	54 (83%)
Missing	1 (2%)
Total nucleated cell dose (× 107/kg), median (range)	3.3 (2.0-6.2)
CD34+ cell dose (× 105/kg), median (range)	4.4 (0.7-14.3)
CD3+ cell dose (× 107/kg), median (range)	1.4 (0.4-3.0)

CMV, cytomegalovirus; CLL, chronic lymphocytic leukemia; UCB umbilical cord blood; HLA, human leukocyte antigen; kg, kilogram.

^*For recipients of two UCB units were considered mismatched if at least one of the units was mismatched.