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	3,531	4,173	4,789	5,958	7,105	7,810	8,274	8,958	9,542	10,312
	10th Percentile of TT (Days)	5	7	9	8	11	12	15	20	28	30
	25th Percentile of TT (Days)	20	31	48	50	66	96	117	141	186	196
	Median TT (Days)	83	128	188	216	315	474	673	804	+	+
	Median TT 95% C.I. Lower Bound	77	120	177	199	295	436	611	725	+	+
	Median TT 95% C.I. Upper Bound	91	139	206	234	337	503	732	885	+	+
Non-Resident Alien	Number of Registrations	75	82	63	114	138	144	169	174	189	179
	10th Percentile of TT (Days)	9	6	8	6	6	6	6	8	7	9
	25th Percentile of TT (Days)	19	32	46	34	21	35	26	58	51	43
	Median TT (Days)	62	112	152	99	176	147	141	356	441	+
	Median TT 95% C.I. Lower Bound	50	80	99	74	103	94	86	240	254	+
	Median TT 95% C.I. Upper Bound	153	207	301	177	271	265	279	631	+	+
Unknown	Number of Registrations	577	559	680	150	94	104	187	411	787	402
	10th Percentile of TT (Days)	8	6	4	6	13	4	9	12	18	16
	25th Percentile of TT (Days)	32	48	13	34	243	134	205	200	233	390
	Median TT (Days)	392	+	+	+	+	+	+	+	+	+
	Median TT 95% C.I. Lower Bound	225	+	+	+	+	+	+	+	+	+
	Median TT 95% C.I. Upper Bound	+	+	+	+	+	+	+	+	+	+

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.