Transplant Statistics: Annual Report

Residency		Year of Waiting List Registration
		1993	1994	1995	1996	1997	1998	1999	2000
U.S. Resident	Number of Registrations	44	79	84	75	125	129	121	154
	10th Percentile of TT (Days)	24	43	19	33	21	13	38	40
	25th Percentile of TT (Days)	95	167	132	116	81	85	87	118
	Median TT (Days)	+	+	637	415	+	291	303	367
	Median TT 95% C.I. Lower Bound	+	+	282	288	+	165	214	247
	Median TT 95% C.I. Upper Bound	+	+	+	+	+	+	473	+
Non-Resident Alien	Number of Registrations	3	2	6	3	9	7	4	6
	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	12	3	2	10	1	16	25	11
	10th Percentile of TT (Days)	588	*	*	39	*	1	15	4
	25th Percentile of TT (Days)	694	*	*	157	*	55	33	5
	Median TT (Days)	+	*	*	203	*	+	+	116
	Median TT 95% C.I. Lower Bound	+	*	*	157	*	+	+	13
	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.

The Intestine waiting list began in 1993.

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.