Table 2.

Distributions of T&B FC, T AHG & B, and T AHG techniques as the most sensitive crossmatch modalities within clinical subgroups, 1999−2005

	Total N=64,319	T&B FC	T AHG &B	T AHG	P-value2
		N=27,129 (%)1	N=22,052 (%)1	N=15,139 (%)1
Recipient Race
Caucasian	37,403	38.9	35.3	25.8	<.0001
African-American	14,225	43.0	36.5	20.5
Hispanic or other	12,691	50.9	28.7	20.4
Recipient Age (yrs)
0−18	3,730	42.9	37.0	20.1	<.0001
19−30	6,902	44.3	36.2	19.5
31−45	17,598	42.8	34.9	22.3
46−60	23,979	41.9	34.1	24.0
Over 60	12,110	40.4	31.8	27.8
Transplant Number
First transplant	57,506	41.9	34.3	23.8	<.0001
Re-transplant	6,813	44.7	34.0	21.3
Peak PRA (%)
0−10	47,511	39.7	35.2	25.1	<.0001
11−50	7,304	46.0	32.0	22.0
Over 50	6,301	51.8	32.8	15.4
Missing	3,203	51.5	28.3	20.2
HLA Matching
0 ABDR MM	6,781	43.4	34.3	22.3	<.0001
0 DR MM	12,912	42.8	34.7	22.5
DR MM	44,354	41.7	34.2	24.1
Missing	272	54.4	31.6	14.0
Donor Type and Quality
Living Donor	26,054	44.6	37.1	18.3	<.0001
SCD	30,515	41.2	32.5	26.3
ECD	6,187	37.5	33.4	29.1
DCD	1563	39.0	25.5	35.4
Cold Ischemia Time (hours)
0−12	23,483	40.9	40.1	19.0	<.0001
13−24	18,068	41.5	33.2	25.3
Over 24	7,206	45.8	28.4	25.9
Missing - Living	10,631	46.3	29.7	24.0
Missing - Deceased	4,931	36.8	29.1	34.2
Transplant Year
1999−2000	14,215	34.7	36.8	28.5	<.0001
2001−2002	18,834	38.2	34.7	27.1
2003−2005	31,270	48.0	32.9	19.2

¹Indicates percentage of specified patient group crossmatched by indicated modalities (“row percentage”). The study sample was limited to transplants with negative crossmatch results.

²P-values were derived from Chi-square test comparing distributions of characteristics across crossmatch technique.

DCD: donation after cardiac death, ECD: expanded criteria donor, MM: mismatch, SCD: standard criteria donor