Table 1.

Reasons for the exclusion of collected UCB units

	n	%
Low volume (<60 ml)	18,034	47.30
Low number of TNCs (<10.0 × 108)	11,875	31.15
Clot	672	1.76
Exceed the time (>24 h)	269	0.70
Broken bag	142	0.37
Abnormal result of the mother	49	0.13
Hemolysis of cord blood	31	0.08
Total			31,072	81.49