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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

Ethnicity 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 + + +
Hispanic/Latino Number of Registrations 446 485 701 936 855 989 1,125 1,158 1,438 1,635
10th Percentile of TT (Days) 4 6 6 7 8 17 14 25 26 32
25th Percentile of TT (Days) 17 36 43 65 83 117 133 199 205 193
Median TT (Days) 119 160 233 342 482 719 850 + + +
Median TT 95% C.I. Lower Bound 95 126 188 269 371 593 703 + + +
Median TT 95% C.I. Upper Bound 148 206 327 426 590 1,019 1,175 + + +
Non-Hispanic/Non-Latino Number of Registrations 2,151 2,602 4,891 6,339 7,118 7,520 8,187 8,959 9,349 9,391
10th Percentile of TT (Days) 6 4 7 11 13 14 20 27 29 28
25th Percentile of TT (Days) 22 22 43 66 94 112 140 180 190 162
Median TT (Days) 83 92 184 303 448 611 741 + + +
Median TT 95% C.I. Lower Bound 76 86 171 284 417 563 675 + + +
Median TT 95% C.I. Upper Bound 90 99 197 325 484 675 819 + + +
Unknown Number of Registrations 2,217 2,446 635 64 85 122 231 397 96 110
10th Percentile of TT (Days) 8 16 28 5 4 27 11 10 47 272
25th Percentile of TT (Days) 56 113 151 192 332 250 221 233 + +
Median TT (Days) + + + + + + + + + +
Median TT 95% C.I. Lower Bound + + + + + + + + + +
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.
 
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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