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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 and Gender 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%, Female Number of Registrations 3,661 3,860 4,085 4,474 4,649 4,971 5,115 5,270 5,684 5,997
10th Percentile of TT (Days) 46 68 71 69 71 77 79 85 107 100
25th Percentile of TT (Days) 146 179 203 199 194 212 225 246 288 274
Median TT (Days) 454 520 616 598 620 657 735 868 + +
Median TT 95% C.I. Lower Bound 427 489 582 560 583 625 694 818 + +
Median TT 95% C.I. Upper Bound 477 558 659 648 666 695 790 926 + +
0-19%, Male Number of Registrations 6,634 7,192 7,754 8,282 8,375 8,802 9,468 9,587 10,087 10,291
10th Percentile of TT (Days) 57 71 74 75 73 82 90 105 112 113
25th Percentile of TT (Days) 168 202 203 204 212 232 253 284 307 324
Median TT (Days) 499 561 561 613 684 717 867 922 + +
Median TT 95% C.I. Lower Bound 476 535 541 583 652 679 823 880 + +
Median TT 95% C.I. Upper Bound 522 586 587 639 718 748 905 969 + +
20-79%, Female Number of Registrations 1,207 1,262 1,256 1,319 1,315 1,288 1,301 1,403 1,451 1,438
10th Percentile of TT (Days) 160 165 159 159 184 196 199 191 204 224
25th Percentile of TT (Days) 390 441 516 480 489 551 589 606 545 +
Median TT (Days) 1,138 1,396 1,376 1,487 1,448 1,668 + + + +
Median TT 95% C.I. Lower Bound 947 1,235 1,222 1,300 1,285 1,508 + + + +
Median TT 95% C.I. Upper Bound 1,312 1,559 1,517 1,694 1,586 2,003 + + + +
20-79%, Male Number of Registrations 1,186 1,176 1,109 1,084 1,055 927 995 1,039 977 894
10th Percentile of TT (Days) 166 181 230 220 186 164 275 218 199 236
25th Percentile of TT (Days) 402 462 539 540 560 499 740 607 598 +
Median TT (Days) 1,100 1,269 1,329 1,543 1,485 1,583 + + + +
Median TT 95% C.I. Lower Bound 996 1,153 1,220 1,391 1,334 1,458 + + + +
Median TT 95% C.I. Upper Bound 1,261 1,421 1,510 1,746 1,619 1,885 + + + +
80%+, Female Number of Registrations 955 993 976 1,042 1,065 1,048 1,113 1,160 1,148 993
10th Percentile of TT (Days) 287 318 427 303 387 366 376 333 303 263
25th Percentile of TT (Days) 852 953 1,091 909 1,058 982 1,089 853 902 +
Median TT (Days) + + + + + + + + + +
Median TT 95% C.I. Lower Bound + + + + + + + + + +
Median TT 95% C.I. Upper Bound + + + + + + + + + +
80%+, Male Number of Registrations 659 629 591 680 608 587 712 726 678 565
10th Percentile of TT (Days) 308 370 508 338 354 433 345 308 341 309
25th Percentile of TT (Days) 825 1,142 1,373 1,083 951 1,024 950 868 + +
Median TT (Days) + + + + + + + + + +
Median TT 95% C.I. Lower Bound + + + + + + + + + +
Median TT 95% C.I. Upper Bound + + + + + + + + + +
Unknown, Female Number of Registrations 425 386 305 419 526 610 588 710 912 899
10th Percentile of TT (Days) 34 32 34 69 64 55 84 72 55 86
25th Percentile of TT (Days) 110 123 99 229 277 334 290 232 203 370
Median TT (Days) 381 589 463 1,483 1,701 1,310 1,526 + + +
Median TT 95% C.I. Lower Bound 308 430 306 1,021 1,267 1,071 1,045 + + +
Median TT 95% C.I. Upper Bound 524 1,469 591 2,473 + + + + + +
Unknown, Male Number of Registrations 497 592 462 603 735 834 899 1,091 1,332 1,272
10th Percentile of TT (Days) 26 35 25 37 50 46 60 58 59 67
25th Percentile of TT (Days) 73 138 118 156 283 277 235 217 227 311
Median TT (Days) 316 581 524 1,099 1,629 1,295 1,328 + + +
Median TT 95% C.I. Lower Bound 240 459 407 842 1,348 1,055 1,076 + + +
Median TT 95% C.I. Upper Bound 410 894 707 1,493 2,286 1,787 + + + +

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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