Unrelated Hematopoietic Stem Cell Donor Matching Probability and Search Algorithm

Table 4

Donor matching grade for 274 consecutive searches run from 1.1.2010 to 31.8.2012.

Category^(1)	Nb	Nb donors	Mean nb	10/10	9/10^(2)	≤8/10 or non
	patients	tested	don/patient			evaluable
High	103	331	3.2	102 (99%)	1 (1%)	0
Interm	61	333	5.45	38 (62.2%)	20 (32.8%)	3 (5%)
Low	110	744	6.76	19 (17.3%)	44 (40%)	47 (42.7%)
Total	274	1408	5.14	159 (58%)	65 (23.7%)	50 (18.3%)

⁽¹⁾For 26 patients classified with a high (𝑛=7), intermediate (𝑛=5), and low (𝑛=14) probability a formal search was not initiated or no donor could be requested or analysed during the same time frame.
⁽²⁾DRB3 disparities were counted as a mismatch.