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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

Gender 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 + + +
Female Number of Registrations 2,229 2,454 2,713 3,224 3,410 3,574 3,856 4,256 4,368 4,347
10th Percentile of TT (Days) 5 7 8 13 10 11 15 20 23 23
25th Percentile of TT (Days) 31 43 54 76 93 101 137 198 195 183
Median TT (Days) 164 205 252 354 467 679 896 + + +
Median TT 95% C.I. Lower Bound 147 182 222 322 416 590 799 + + +
Median TT 95% C.I. Upper Bound 196 229 291 393 512 799 1,065 + + +
Male Number of Registrations 2,585 3,079 3,514 4,115 4,648 5,057 5,687 6,258 6,515 6,789
10th Percentile of TT (Days) 7 7 7 9 14 18 24 31 32 33
25th Percentile of TT (Days) 31 41 44 60 93 122 141 174 192 161
Median TT (Days) 118 179 194 279 452 606 693 + + +
Median TT 95% C.I. Lower Bound 106 163 176 257 413 546 634 + + +
Median TT 95% C.I. Upper Bound 130 195 210 306 493 675 773 + + +

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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