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	498	295	189	171	227	269	318	382	482	728
	10th Percentile of TT (Days)	10	9	18	45	25	26	20	19	21	17
	25th Percentile of TT (Days)	41	32	80	135	114	100	67	69	66	73
	Median TT (Days)	87	90	435	475	407	321	314	239	207	403
	Median TT 95% C.I. Lower Bound	77	74	280	343	335	261	219	189	169	327
	Median TT 95% C.I. Upper Bound	100	102	764	771	563	404	423	324	258	561
Non-Resident Alien	Number of Registrations	1	0	2	0	0	1	1	3	1	4
	10th Percentile of TT (Days)	*	*	*	*	*	*	*	*	*	*
	25th Percentile of TT (Days)	*	*	*	*	*	*	*	*	*	*
	Median TT (Days)	*	*	*	*	*	*	*	*	*	*
	Median TT 95% C.I. Lower Bound	*	*	*	*	*	*	*	*	*	*
	Median TT 95% C.I. Upper Bound	*	*	*	*	*	*	*	*	*	*
Unknown	Number of Registrations	198	85	18	30	4	9	11	11	44	57
	10th Percentile of TT (Days)	69	35	17	20	*	*	35	1	36	11
	25th Percentile of TT (Days)	295	+	262	131	*	*	68	54	61	89
	Median TT (Days)	+	+	+	+	*	*	187	126	712	+
	Median TT 95% C.I. Lower Bound	+	+	+	+	*	*	72	58	122	+
	Median TT 95% C.I. Upper Bound	+	+	+	+	*	*	+	364	+	+

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.