Transplant Statistics: Annual Report

Liver Beginning Status		Year of Waiting List Registration
		1991	1992	1993	1994	1995	1996	1997	1998	1999	2000
1	Number of Registrations	448	591	784	820	840	887	847	789	854	778
	10th Percentile of TT (Days)	3	3	2	2	2	1	1	1	2	2
	25th Percentile of TT (Days)	5	6	4	4	3	3	3	3	3	3
	Median TT (Days)	50	62	26	16	13	10	7	6	7	7
	Median TT 95% C.I. Lower Bound	29	40	17	14	10	8	6	5	6	6
	Median TT 95% C.I. Upper Bound	97	105	36	21	19	13	9	7	10	9
2	Number of Registrations	580	747	902	1,122	868	614	361	2	0	0
	10th Percentile of TT (Days)	8	9	10	8	5	4	3	*	*	*
	25th Percentile of TT (Days)	24	32	32	34	12	9	11	*	*	*
	Median TT (Days)	116	116	111	124	78	31	40	*	*	*
	Median TT 95% C.I. Lower Bound	94	101	99	110	61	23	30	*	*	*
	Median TT 95% C.I. Upper Bound	146	138	137	142	106	41	56	*	*	*
2A	Number of Registrations	0	0	0	0	0	0	88	290	342	418
	10th Percentile of TT (Days)	*	*	*	*	*	*	3	3	3	4
	25th Percentile of TT (Days)	*	*	*	*	*	*	6	6	6	9
	Median TT (Days)	*	*	*	*	*	*	52	24	25	36
	Median TT 95% C.I. Lower Bound	*	*	*	*	*	*	14	14	21	24
	Median TT 95% C.I. Upper Bound	*	*	*	*	*	*	+	75	97	224
2B	Number of Registrations	0	0	0	0	0	1	249	2,152	2,824	2,977
	10th Percentile of TT (Days)	*	*	*	*	*	*	4	21	28	29
	25th Percentile of TT (Days)	*	*	*	*	*	*	13	75	99	91
	Median TT (Days)	*	*	*	*	*	*	62	292	438	+
	Median TT 95% C.I. Lower Bound	*	*	*	*	*	*	39	263	377	+
	Median TT 95% C.I. Upper Bound	*	*	*	*	*	*	140	346	514	+
3	Number of Registrations	741	1,437	1,865	2,381	3,704	4,356	6,932	6,143	6,295	6,376
	10th Percentile of TT (Days)	19	27	31	32	33	41	57	92	122	139
	25th Percentile of TT (Days)	52	64	78	87	96	130	193	281	390	490
	Median TT (Days)	162	167	193	212	291	432	865	+	+	+
	Median TT 95% C.I. Lower Bound	143	154	180	198	273	403	782	+	+	+
	Median TT 95% C.I. Upper Bound	196	188	206	232	313	474	970	+	+	+
4	Number of Registrations	245	297	440	585	1,557	2,126	83	0	0	0
	10th Percentile of TT (Days)	18	92	92	456	66	82	131	*	*	*
	25th Percentile of TT (Days)	58	2,241	2,980	+	238	260	538	*	*	*
	Median TT (Days)	+	+	+	+	1,994	+	+	*	*	*
	Median TT 95% C.I. Lower Bound	+	+	+	+	1,351	+	+	*	*	*
	Median TT 95% C.I. Upper Bound	+	+	+	+	+	+	+	*	*	*
Other	Number of Registrations	2,169	1,742	1,541	1,314	368	74	70	167	203	344
	10th Percentile of TT (Days)	5	5	6	7	9	9	17	38	65	69
	25th Percentile of TT (Days)	17	17	39	56	78	44	76	130	223	281
	Median TT (Days)	65	100	293	1,467	1,092	290	171	452	+	+
	Median TT 95% C.I. Lower Bound	59	89	227	370	336	111	127	347	+	+
	Median TT 95% C.I. Upper Bound	71	113	438	+	+	508	+	+	+	+

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.