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Transplant Statistics: Annual Report : Reference Tables

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Table 9.2
Time to Transplant
New Liver Waiting List Registrations, 1992 to 2001

Previous Any Organ Tx Year of Waiting List Registration
1992 1993 1994 1995 1996 1997 1998 1999 2000 2001
Total Number of Registrations 4,814 5,533 6,227 7,339 8,058 8,631 9,543 10,514 10,883 11,136
10th Percentile of TT (Days) 6 7 7 10 12 15 19 27 28 29
25th Percentile of TT (Days) 31 42 49 66 93 113 140 183 194 169
Median TT (Days) 138 187 212 310 458 632 770 + + +
Median TT 95% C.I. Lower Bound 127 176 198 291 426 585 704 + + +
Median TT 95% C.I. Upper Bound 147 204 229 330 490 692 841 + + +
No Number of Registrations 4,077 4,708 5,542 6,675 7,274 7,764 8,662 9,602 9,771 9,860
10th Percentile of TT (Days) 8 10 9 13 18 23 31 38 40 39
25th Percentile of TT (Days) 40 53 57 75 111 138 163 203 209 181
Median TT (Days) 150 210 217 315 494 692 834 + + +
Median TT 95% C.I. Lower Bound 140 194 200 297 466 632 765 + + +
Median TT 95% C.I. Upper Bound 163 228 234 336 528 755 926 + + +
Yes Number of Registrations 737 825 685 664 784 867 881 912 1,112 1,276
10th Percentile of TT (Days) 3 2 3 2 1 1 2 3 3 4
25th Percentile of TT (Days) 9 7 11 11 8 7 8 15 26 53
Median TT (Days) 64 76 131 189 114 139 216 590 + +
Median TT 95% C.I. Lower Bound 51 57 87 101 79 88 155 394 + +
Median TT 95% C.I. Upper Bound 90 93 264 350 169 229 328 + + +

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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