Table 1.

Patient-, donor-, and transplantation-related characteristics

n (%)Median (range)
Patient-related characteristics   
 Overall 63 — 
 Sex (male) 34 (54) — 
 Ethnicity (white) 60 (97) — 
 Genotype (nonsense-nonsense*28 (47) — 
 Age at HSCT, mo — 15 (3-42) 
 Interval diagnosis, HSCT, mo — 6 (0-27) 
 Age at assessment, y — 8 (5-18) 
Donor-related characteristics   
 Source (CB/BM/PBSC) 15/40/8 (24/63/13) — 
 Relation (related) 23 (37) — 
 Carrier status (carrier) 11 (19) — 
Transplantation-related characteristics   
 No. of HSCTs (1/2/3) 46/16/1 (73/25/2)  
 Year of HSCT  2002 (1987-2009) 
 ERT pre-HSCT 20 (32) — 
 TBI 2 (3) — 
 Donor chimerism (<95%) 15 (24) — 
 IDUA level post-HSCT (below reference20 (32) — 
 IDUA level post-HSCT (% of mean) — 59 (13-190) 
n (%)Median (range)
Patient-related characteristics   
 Overall 63 — 
 Sex (male) 34 (54) — 
 Ethnicity (white) 60 (97) — 
 Genotype (nonsense-nonsense*28 (47) — 
 Age at HSCT, mo — 15 (3-42) 
 Interval diagnosis, HSCT, mo — 6 (0-27) 
 Age at assessment, y — 8 (5-18) 
Donor-related characteristics   
 Source (CB/BM/PBSC) 15/40/8 (24/63/13) — 
 Relation (related) 23 (37) — 
 Carrier status (carrier) 11 (19) — 
Transplantation-related characteristics   
 No. of HSCTs (1/2/3) 46/16/1 (73/25/2)  
 Year of HSCT  2002 (1987-2009) 
 ERT pre-HSCT 20 (32) — 
 TBI 2 (3) — 
 Donor chimerism (<95%) 15 (24) — 
 IDUA level post-HSCT (below reference20 (32) — 
 IDUA level post-HSCT (% of mean) — 59 (13-190) 

All characteristics concern the last HSCT.

BM, bone marrow; CB, cord blood; ERT, enzyme replacement therapy; PBSC, peripheral blood stem cell; TBI, total body irradiation.

*

Of known mutations.

Measured in leukocytes.

Lower limit of local reference.

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