Table 9.2

Time to Transplant

New Liver Waiting List Registrations, 1993 to 2002

Age at Registration Year of Waiting List Registration
1993 1994 1995 1996 1997 1998 1999 2000 2001 2002
Total Number of Registrations 5,535 6,238 7,346 8,065 8,632 9,546 10,516 10,883 11,132 9,651
10th Percentile of TT (Days) 7 8 11 13 16 21 27 29 29 14
25th Percentile of TT (Days) 42 50 67 97 117 143 184 193 169 80
Median TT (Days) 186 217 316 470 656 796 + + + +
Median TT 95% C.I. Lower Bound 175 200 297 434 603 722 + + + +
Median TT 95% C.I. Upper Bound 202 234 337 499 711 877 + + + +
<1 Year Number of Registrations 276 309 236 297 335 361 382 379 409 349
10th Percentile of TT (Days) 9 6 11 8 5 8 10 12 16 9
25th Percentile of TT (Days) 51 26 43 33 27 36 43 57 68 40
Median TT (Days) 188 111 166 129 120 122 163 183 258 209
Median TT 95% C.I. Lower Bound 146 91 112 108 96 94 132 158 186 133
Median TT 95% C.I. Upper Bound 290 140 217 160 168 161 207 276 358 359
1-5 Years Number of Registrations 231 272 246 211 237 192 203 242 262 223
10th Percentile of TT (Days) 9 4 4 4 4 3 4 7 8 6
25th Percentile of TT (Days) 46 25 24 19 20 17 18 48 55 32
Median TT (Days) 233 180 206 195 151 251 115 262 581 203
Median TT 95% C.I. Lower Bound 157 113 133 144 112 130 85 198 319 102
Median TT 95% C.I. Upper Bound 374 302 271 303 199 433 193 536 + 297
6-10 Years Number of Registrations 110 83 113 94 91 117 103 108 85 69
10th Percentile of TT (Days) 6 5 4 4 6 4 4 4 5 4
25th Percentile of TT (Days) 58 19 22 48 27 55 31 50 43 26
Median TT (Days) 249 127 188 251 175 221 321 283 200 170
Median TT 95% C.I. Lower Bound 122 96 123 141 96 114 154 169 135 52
Median TT 95% C.I. Upper Bound 488 297 257 749 329 350 587 467 + +
11-17 Years Number of Registrations 140 152 161 173 185 205 193 194 228 163
10th Percentile of TT (Days) 7 6 5 6 8 4 3 5 4 3
25th Percentile of TT (Days) 63 39 51 42 37 23 39 56 34 28
Median TT (Days) 262 260 284 314 263 271 664 417 327 147
Median TT 95% C.I. Lower Bound 180 144 192 184 150 174 334 283 206 123
Median TT 95% C.I. Upper Bound 1,064 492 530 474 472 452 1,293 885 596 +
18-34 Years Number of Registrations 487 555 533 535 632 523 584 648 617 507
10th Percentile of TT (Days) 3 4 6 4 5 5 4 4 4 5
25th Percentile of TT (Days) 18 29 53 35 42 80 85 74 106 40
Median TT (Days) 195 247 480 375 408 703 1,064 978 + +
Median TT 95% C.I. Lower Bound 137 174 329 311 298 493 690 635 + +
Median TT 95% C.I. Upper Bound 269 361 867 486 605 1,147 + + + +
35-49 Years Number of Registrations 1,799 2,198 2,640 2,911 3,010 3,281 3,475 3,348 3,286 2,685
10th Percentile of TT (Days) 8 9 13 19 23 34 33 29 38 13
25th Percentile of TT (Days) 45 58 75 123 165 175 202 208 195 87
Median TT (Days) 194 228 311 536 786 879 + + + +
Median TT 95% C.I. Lower Bound 171 200 284 485 705 748 + + + +
Median TT 95% C.I. Upper Bound 220 256 349 592 970 1,057 + + + +
50-64 Years Number of Registrations 1,884 1,990 2,526 2,789 3,049 3,542 4,118 4,473 4,693 4,297
10th Percentile of TT (Days) 8 11 13 21 24 36 47 52 42 17
25th Percentile of TT (Days) 42 54 73 106 144 200 242 259 205 97
Median TT (Days) 171 222 330 516 817 1,115 + + + +
Median TT 95% C.I. Lower Bound 154 199 303 474 700 933 + + + +
Median TT 95% C.I. Upper Bound 192 255 366 578 948 1,492 + + + +
65+ Years Number of Registrations 267 305 449 503 528 640 707 712 765 652
10th Percentile of TT (Days) 8 13 11 15 25 21 51 31 37 20
25th Percentile of TT (Days) 42 69 59 84 138 156 245 220 187 88
Median TT (Days) 164 225 311 537 820 + + + + +
Median TT 95% C.I. Lower Bound 123 176 228 380 524 + + + + +
Median TT 95% C.I. Upper Bound 252 349 477 1,078 + + + + + +
Unknown Number of Registrations 341 374 442 552 565 685 751 779 787 706
10th Percentile of TT (Days) 6 7 13 14 17 18 34 30 29 19
25th Percentile of TT (Days) 42 59 104 117 112 112 213 205 188 96
Median TT (Days) 209 232 440 490 666 537 1,168 + + +
Median TT 95% C.I. Lower Bound 162 182 347 396 487 421 854 + + +
Median TT 95% C.I. Upper Bound 278 356 654 694 1,015 722 + + + +

Source: OPTN/SRTR Data as of August 1, 2003.

(+) = 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 for a full discussion of the methods used for this table.