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Transplant Statistics: Annual Report : Reference Tables

Table 10.2

Time to Transplant

New Intestine Waiting List Registrations, 1993 to 2001

Residency		Year of Waiting List Registration
Residency		1993	1994	1995	1996	1997	1998	1999	2000	2001
Total	Number of Registrations	59	84	92	88	135	152	149	171	219
	10th Percentile of TT (Days)	24	41	19	35	21	12	28	33	27
	25th Percentile of TT (Days)	184	163	114	96	72	80	87	103	82
	Median TT (Days)	+	+	467	390	894	291	313	295	319
	Median TT 95% C.I. Lower Bound	+	+	276	254	265	165	219	192	185
	Median TT 95% C.I. Upper Bound	+	+	+	1,164	+	+	520	604	+
U.S. Resident	Number of Registrations	45	79	85	75	125	134	130	157	205
	10th Percentile of TT (Days)	24	43	14	33	21	14	40	38	27
	25th Percentile of TT (Days)	95	167	114	116	81	85	97	117	82
	Median TT (Days)	+	+	497	409	1,129	239	315	343	319
	Median TT 95% C.I. Lower Bound	+	+	277	288	283	162	226	238	179
	Median TT 95% C.I. Upper Bound	+	+	+	+	+	+	583	+	+
Nonresident Alien	Number of Registrations	3	2	6	3	9	7	6	6	2
	10th Percentile of TT (Days)	24	150	31	49	5	49	49	18	101
	25th Percentile of TT (Days)	24	150	79	49	27	59	224	45	101
	Median TT (Days)	243	150	142	96	131	+	319	48	101
	Median TT 95% C.I. Lower Bound	24	150	79	49	27	+	224	45	101
	Median TT 95% C.I. Upper Bound	+	+	+	+	+	+	+	+	+
Unknown	Number of Registrations	11	3	1	10	1	11	13	8	12
	10th Percentile of TT (Days)	588	7	+	39	+	1	11	3	47
	25th Percentile of TT (Days)	863	7	+	157	+	3	17	4	65
	Median TT (Days)	+	27	+	203	+	+	33	116	208
	Median TT 95% C.I. Lower Bound	+	7	+	157	+	+	17	13	84
	Median TT 95% C.I. Upper Bound	+	+	+	+	+	+	+	+	+

Source: OPTN/SRTR Data as of August 1, 2002.

(+) = 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.

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