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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

Race 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 + + +
White Number of Registrations 4,107 4,735 5,305 6,351 6,887 7,368 8,161 8,994 9,196 9,398
10th Percentile of TT (Days) 6 7 8 11 13 16 24 30 32 34
25th Percentile of TT (Days) 30 43 49 67 96 120 149 189 197 179
Median TT (Days) 133 183 206 311 467 642 779 + + +
Median TT 95% C.I. Lower Bound 123 172 194 291 431 590 707 + + +
Median TT 95% C.I. Upper Bound 143 198 225 333 498 700 855 + + +
African American Number of Registrations 396 466 591 582 700 732 832 897 994 973
10th Percentile of TT (Days) 6 4 6 8 6 9 8 8 10 14
25th Percentile of TT (Days) 26 23 42 65 79 85 97 139 135 152
Median TT (Days) 171 206 244 314 367 455 626 + + +
Median TT 95% C.I. Lower Bound 121 150 199 248 279 394 478 + + +
Median TT 95% C.I. Upper Bound 212 259 371 410 475 716 972 + + +
Asian Number of Registrations 201 173 177 249 318 341 370 427 404 430
10th Percentile of TT (Days) 11 7 9 6 9 7 10 22 27 11
25th Percentile of TT (Days) 55 30 48 46 90 90 109 189 338 114
Median TT (Days) 190 473 321 290 671 1,423 979 + + +
Median TT 95% C.I. Lower Bound 128 186 195 158 427 730 607 + + +
Median TT 95% C.I. Upper Bound 322 + 1,145 514 1,128 + + + + +
Other/Multi-race Number of Registrations 90 118 138 157 153 185 179 196 282 319
10th Percentile of TT (Days) 16 7 6 10 12 10 12 15 20 19
25th Percentile of TT (Days) 46 33 51 56 65 48 74 72 132 119
Median TT (Days) 141 145 180 302 278 506 562 740 + +
Median TT 95% C.I. Lower Bound 85 87 121 178 192 214 352 411 + +
Median TT 95% C.I. Upper Bound 246 266 337 393 543 1,346 + + + +
Unknown Number of Registrations 20 41 16 0 0 5 1 0 7 16
10th Percentile of TT (Days) 62 41 11 + + 1 + + 11 35
25th Percentile of TT (Days) 219 97 129 + + 63 + + 64 61
Median TT (Days) + + 706 + + 80 + + 201 196
Median TT 95% C.I. Lower Bound + + 139 + + 63 + + 64 90
Median TT 95% C.I. Upper Bound + + + + + + + + + 301

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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