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Transplant Statistics: Annual Report : Reference Tables

Table 8.2

Time to Transplant

New Kidney-Pancreas Waiting List Registrations, 1992 to 2001

Residency		Year of Waiting List Registration
Residency		1992	1993	1994	1995	1996	1997	1998	1999	2000	2001
Total	Number of Registrations	720	1,068	1,219	1,390	1,382	1,412	1,535	1,805	2,011	1,799
	10th Percentile of TT (Days)	95	38	30	37	49	57	48	61	68	64
	25th Percentile of TT (Days)	190	112	93	108	135	154	140	173	223	179
	Median TT (Days)	419	297	255	279	357	366	388	434	546	+
	Median TT 95% C.I. Lower Bound	369	272	230	257	327	348	351	407	507	+
	Median TT 95% C.I. Upper Bound	468	325	279	314	392	396	409	464	589	+
U.S. Resident	Number of Registrations	538	936	1,202	1,378	1,343	1,400	1,511	1,760	1,982	1,773
	10th Percentile of TT (Days)	74	38	30	38	51	56	49	59	68	64
	25th Percentile of TT (Days)	160	107	93	109	135	152	140	169	219	177
	Median TT (Days)	328	275	252	279	356	366	389	428	546	+
	Median TT 95% C.I. Lower Bound	291	258	225	257	327	348	356	401	508	+
	Median TT 95% C.I. Upper Bound	368	301	277	314	392	396	411	458	592	+
Nonresident Alien	Number of Registrations	0	1	3	7	9	3	11	7	4	4
	10th Percentile of TT (Days)	+	548	76	23	11	238	47	97	27	51
	25th Percentile of TT (Days)	+	548	76	24	62	238	53	238	27	51
	Median TT (Days)	+	548	325	106	283	368	237	+	42	116
	Median TT 95% C.I. Lower Bound	+	+	76	24	62	238	149	+	27	51
	Median TT 95% C.I. Upper Bound	+	+	+	+	+	+	441	+	+	+
Unknown	Number of Registrations	182	131	14	5	30	9	13	38	25	22
	10th Percentile of TT (Days)	218	32	54	100	29	132	82	113	261	220
	25th Percentile of TT (Days)	468	190	1,975	349	205	243	133	405	398	256
	Median TT (Days)	+	+	+	859	693	599	285	785	496	+
	Median TT 95% C.I. Lower Bound	+	+	+	349	242	243	133	499	444	+
	Median TT 95% C.I. Upper Bound	+	+	+	+	+	+	+	+	637	+

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

(+) = 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.

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