Transplant Statistics: Annual Report

Residency		Year of Waiting List Registration
		1991	1992	1993	1994	1995	1996	1997	1998	1999	2000
U.S. Resident	Number of Registrations	10,227	12,283	14,287	16,266	17,646	18,004	18,621	19,484	19,900	21,118
	10th Percentile of TT (Days)	53	68	101	82	81	84	91	99	108	115
	25th Percentile of TT (Days)	171	218	287	233	237	255	266	292	309	351
	Median TT (Days)	542	717	790	728	796	883	932	1,095	+	+
	Median TT 95% C.I. Lower Bound	519	694	762	700	770	853	892	1,048	+	+
	Median TT 95% C.I. Upper Bound	563	740	821	754	826	918	968	1,161	+	+
Non-Resident Alien	Number of Registrations	53	80	101	99	152	182	183	175	165	195
	10th Percentile of TT (Days)	34	83	104	148	51	73	68	71	134	151
	25th Percentile of TT (Days)	148	302	341	379	216	214	275	374	619	+
	Median TT (Days)	445	887	921	969	675	1,144	1,057	1,256	+	+
	Median TT 95% C.I. Lower Bound	324	702	611	673	481	772	735	891	+	+
	Median TT 95% C.I. Upper Bound	1,182	+	1,571	1,466	887	1,675	+	+	+	+
Unknown	Number of Registrations	3,440	2,861	1,699	172	96	137	259	530	924	958
	10th Percentile of TT (Days)	50	60	34	60	124	67	97	131	184	151
	25th Percentile of TT (Days)	145	166	92	539	680	442	480	569	598	461
	Median TT (Days)	455	427	203	+	+	1,459	+	+	+	+
	Median TT 95% C.I. Lower Bound	424	407	190	+	+	860	+	+	+	+
	Median TT 95% C.I. Upper Bound	484	452	220	+	+	+	+	+	+	+

Source: OPTN/SRTR Data as of August 1, 2001.

(*) = Not determined due to small cell N (0 to 9).

(+) = Not determined due to insufficient follow-up; fewer than this percentile have transplanted.

TT = Time to Transplant in days.

This table takes a cohort of waiting list registrations and shows how long it takes for 10%, 25%, and 50% (the median) of those patients to be transplanted. These tables take the point of view of a patient who has just been registered on a waiting list and take into account all of the things that can happen to the patient after wait listing, including receiving a transplant, being removed from the waiting list, and dying.

See Technical Notes chapter for a full discussion of the methods used for this table.