Figure 1.
Donor type, HSC source, and URD availability for allogeneic HCT. (A) Donor type. Shown are the numbers of HCTs from URD, HLA-identical siblings, other relatives (ie, mainly haploidentical family), and umbilical cord blood performed in the United States between 1980 and 2017.2 (B) HSC source. Shown are the numbers of URD HCTs from BM, PBSC, and umbilical cord blood performed in the United States between 2000 and 2017.2 (C) URD availability. Shown is the probability of finding a URD at different levels of HLA matching for adult patients (>20 years of age) from different ethnic groups.3