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Transplant Statistics: Annual Report : Reference Tables

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Table 5.2
Time to Transplant
New Kidney Waiting List Registrations, 1992 to 2001

Peak PRA Year of Waiting List Registration
1992 1993 1994 1995 1996 1997 1998 1999 2000 2001
Total Number of Registrations 15,224 16,090 16,538 17,903 18,328 19,067 20,191 20,986 22,269 22,349
10th Percentile of TT (Days) 64 82 85 84 84 92 100 107 115 116
25th Percentile of TT (Days) 200 235 249 246 259 269 297 314 339 359
Median TT (Days) 624 746 787 825 886 931 1,067 1,144 + +
Median TT 95% C.I. Lower Bound 603 720 759 797 855 895 1,028 1,100 + +
Median TT 95% C.I. Upper Bound 642 772 817 849 920 967 1,103 1,205 + +
0-19% Number of Registrations 10,295 11,052 11,839 12,756 13,024 13,773 14,583 14,857 15,771 16,288
10th Percentile of TT (Days) 53 70 73 73 73 79 86 97 110 107
25th Percentile of TT (Days) 162 192 203 202 204 223 240 272 301 305
Median TT (Days) 480 549 581 605 662 689 820 906 + +
Median TT 95% C.I. Lower Bound 463 526 561 583 634 665 789 871 + +
Median TT 95% C.I. Upper Bound 497 569 602 627 689 720 851 940 + +
20-79% Number of Registrations 2,393 2,438 2,365 2,403 2,370 2,215 2,296 2,442 2,428 2,332
10th Percentile of TT (Days) 161 170 194 184 186 182 228 206 204 226
25th Percentile of TT (Days) 397 456 530 502 519 534 655 606 570 +
Median TT (Days) 1,113 1,325 1,354 1,510 1,481 1,632 + + + +
Median TT 95% C.I. Lower Bound 1,019 1,224 1,253 1,411 1,358 1,521 + + + +
Median TT 95% C.I. Upper Bound 1,242 1,446 1,479 1,660 1,554 1,832 + + + +
80%+ Number of Registrations 1,614 1,622 1,567 1,722 1,673 1,635 1,825 1,886 1,826 1,558
10th Percentile of TT (Days) 294 336 445 313 369 381 356 324 312 269
25th Percentile of TT (Days) 847 1,013 1,198 981 1,010 1,000 1,029 862 + +
Median TT (Days) + + + + + + + + + +
Median TT 95% C.I. Lower Bound + + + + + + + + + +
Median TT 95% C.I. Upper Bound + + + + + + + + + +
Unknown Number of Registrations 922 978 767 1,022 1,261 1,444 1,487 1,801 2,244 2,171
10th Percentile of TT (Days) 27 34 28 46 54 51 68 64 56 76
25th Percentile of TT (Days) 84 129 108 185 279 298 253 224 218 339
Median TT (Days) 342 589 497 1,266 1,647 1,300 1,395 + + +
Median TT 95% C.I. Lower Bound 290 468 407 968 1,388 1,119 1,160 + + +
Median TT 95% C.I. Upper Bound 413 854 591 1,519 1,995 1,680 + + + +

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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