Table 2.

Patients’ Characteristics According to the Cord Blood Donor

Characteristics Related (N = 42) Unrelated (N = 60) P
Median age (yr) range 5.5 (1.7-14)  5.5 (0.2-15)  
<6/≥6  24/18 36/24  .64  
Median weight (kg) range 19.5 (10-46)  20.0 (4.4-83)  
<20/≥20  21/21 28/32  .63  
Gender  
 Male  25  33 .70  
 Female  17  27  
Diagnosis and status 
 ALL  30  40  .67  
 Poor risk  15  12 
 Good risk  15  28  .14  
 AML  12  20 
 Poor risk  3  6  
 Good risk  9  14  1.0 
CMV serology  
 Negative  20  25  .69 
 Positive  22  34  
ABO compatibility  
 Matched 31  27  .005  
 Mismatched  11  33  
HLA disparities* 
 Identical  30  6  .0006  
 1 difference  1  27  
 2 differences  3  22  
 3 differences  7  4  
 4 differences  1  1  
Median no. of nucleated cells collected (107)/kg of recipient (range)  4.0 (1.0-12.2)  5.0 (1.5-46.5)  .04  
Median no. of nucleated cells infused (107)/kg of recipient (range) 3.2 (0.7-10)  4.4 (0.9-36)  .30  
Conditioning 
 TBI-containing regimens  22  34  .69 
 Chemotherapy-based regimens  20  26  
ALG/ATG or monoclonal antibody  10  50  <.0001  
GVHD prophylaxis  
 CsA  20  5  <.0001 
 CsA + steroid  3  41  
 CsA + MTX  13  
 CsA + MTX  + steroid  2  
 CsA ± steroid  ± ATG/ALG or Mab  4  
 FK506 + MTX  —  
Characteristics Related (N = 42) Unrelated (N = 60) P
Median age (yr) range 5.5 (1.7-14)  5.5 (0.2-15)  
<6/≥6  24/18 36/24  .64  
Median weight (kg) range 19.5 (10-46)  20.0 (4.4-83)  
<20/≥20  21/21 28/32  .63  
Gender  
 Male  25  33 .70  
 Female  17  27  
Diagnosis and status 
 ALL  30  40  .67  
 Poor risk  15  12 
 Good risk  15  28  .14  
 AML  12  20 
 Poor risk  3  6  
 Good risk  9  14  1.0 
CMV serology  
 Negative  20  25  .69 
 Positive  22  34  
ABO compatibility  
 Matched 31  27  .005  
 Mismatched  11  33  
HLA disparities* 
 Identical  30  6  .0006  
 1 difference  1  27  
 2 differences  3  22  
 3 differences  7  4  
 4 differences  1  1  
Median no. of nucleated cells collected (107)/kg of recipient (range)  4.0 (1.0-12.2)  5.0 (1.5-46.5)  .04  
Median no. of nucleated cells infused (107)/kg of recipient (range) 3.2 (0.7-10)  4.4 (0.9-36)  .30  
Conditioning 
 TBI-containing regimens  22  34  .69 
 Chemotherapy-based regimens  20  26  
ALG/ATG or monoclonal antibody  10  50  <.0001  
GVHD prophylaxis  
 CsA  20  5  <.0001 
 CsA + steroid  3  41  
 CsA + MTX  13  
 CsA + MTX  + steroid  2  
 CsA ± steroid  ± ATG/ALG or Mab  4  
 FK506 + MTX  —  
*

HLA disparities were defined by using serological and low resolution typing for A, B locus, and DRB1 in related CBT and high resolution DRB1 typing for unrelated CBT.

Fisher’s test was used for categorical variables and Kruskal-Wallis test for noncategorical variables.

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