The Assessment of Parameters Affecting the Quality of Cord Blood by the Appliance of the Annexin V Staining Method and Correlation with CFU Assays

Table 1

Ratio of CFU and CD34⁺-cells prior to and after thawing assessed by different methods.

Sample	After volume reduction			After thawing
	CFU/µL	CD34^+/µL (ISHAGE)	CD34^+/µL (AnnV)	CFU/µL	CD34^+/µL (ISHAGE)	CD34^+/µL (AnnV)
1	45	29	24	33	22	14
2	46	45	36	27	47	27
3	51	51	47	N/A*	N/A*	N/A*
4	57	40	30	45	20	12
5	71	89	67	50	78	51
6	75	111	76	71	131	99
7	78	47	37	22	24	13
8	79	126	106	N/A*	N/A*	N/A*
9	80	113	87	39	60	34
10	96	115	100	60	123	95

∗N/A: not available.
Bold data: results correlating best with the amount of CFU observed assuming a 1 : 1 ratio.