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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

Age at Registration 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 + +
<1 year Number of Registrations 3 9 8 2 3 6 11 10 7 5
10th Percentile of TT (Days) 10 7 84 110 1 13 193 1 202 251
25th Percentile of TT (Days) 10 83 294 110 1 238 198 108 339 286
Median TT (Days) 69 287 + 110 279 279 358 327 + +
Median TT 95% C.I. Lower Bound 10 83 + 110 1 238 210 108 + +
Median TT 95% C.I. Upper Bound + + + + + + + + + +
1-5 years Number of Registrations 73 73 46 75 75 78 64 57 70 88
10th Percentile of TT (Days) 25 43 16 29 24 17 27 54 47 45
25th Percentile of TT (Days) 105 122 55 111 80 109 86 149 128 112
Median TT (Days) 212 431 215 279 217 315 223 274 315 205
Median TT 95% C.I. Lower Bound 160 304 99 209 171 228 194 225 197 162
Median TT 95% C.I. Upper Bound 394 738 576 561 426 566 359 394 399 251
6-10 years Number of Registrations 92 73 72 87 81 87 63 70 80 97
10th Percentile of TT (Days) 42 52 30 19 37 44 28 54 20 57
25th Percentile of TT (Days) 150 114 69 62 92 144 70 140 99 125
Median TT (Days) 376 289 185 211 264 324 354 383 373 338
Median TT 95% C.I. Lower Bound 321 210 93 174 146 200 192 252 241 208
Median TT 95% C.I. Upper Bound 512 427 374 405 443 423 438 459 476 +
11-17 years Number of Registrations 289 266 231 308 312 288 296 317 295 348
10th Percentile of TT (Days) 70 69 23 31 31 39 51 37 49 55
25th Percentile of TT (Days) 193 223 99 86 101 109 132 106 127 156
Median TT (Days) 447 450 232 259 327 394 400 344 370 422
Median TT 95% C.I. Lower Bound 392 399 193 213 281 319 350 284 308 366
Median TT 95% C.I. Upper Bound 541 514 274 318 418 490 551 424 484 +
18-34 years Number of Registrations 3,688 3,627 3,511 3,509 3,401 3,437 3,417 3,439 3,202 3,260
10th Percentile of TT (Days) 66 78 90 83 90 80 96 105 98 106
25th Percentile of TT (Days) 194 227 232 240 245 247 261 283 276 310
Median TT (Days) 595 742 731 754 789 766 868 963 + +
Median TT 95% C.I. Lower Bound 555 694 683 700 751 716 811 901 + +
Median TT 95% C.I. Upper Bound 634 799 797 808 847 833 927 1,023 + +
35-49 years Number of Registrations 5,590 5,906 6,119 6,592 6,372 6,504 6,586 6,520 6,848 6,611
10th Percentile of TT (Days) 64 86 86 91 86 100 97 108 118 121
25th Percentile of TT (Days) 212 251 258 265 273 272 296 315 334 372
Median TT (Days) 687 784 834 827 874 931 1,071 1,113 + +
Median TT 95% C.I. Lower Bound 640 738 789 785 835 867 1,008 1,045 + +
Median TT 95% C.I. Upper Bound 725 831 878 873 930 991 1,133 1,210 + +
50-64 years Number of Registrations 3,747 4,330 4,619 5,066 5,517 6,003 6,754 7,227 8,024 8,098
10th Percentile of TT (Days) 64 85 91 88 91 98 111 121 127 128
25th Percentile of TT (Days) 203 234 286 265 281 307 336 355 387 396
Median TT (Days) 624 765 842 930 1,016 1,107 1,215 + + +
Median TT 95% C.I. Lower Bound 581 716 792 875 951 1,045 1,164 + + +
Median TT 95% C.I. Upper Bound 665 828 897 995 1,087 1,186 1,301 + + +
65+ years Number of Registrations 713 732 876 1,086 1,255 1,345 1,624 1,919 2,307 2,344
10th Percentile of TT (Days) 70 64 84 97 94 113 109 121 128 117
25th Percentile of TT (Days) 212 242 217 282 301 316 370 346 388 413
Median TT (Days) 686 940 828 1,310 1,467 + + + + +
Median TT 95% C.I. Lower Bound 539 769 669 1,058 1,199 + + + + +
Median TT 95% C.I. Upper Bound 843 1,375 1,082 + + + + + + +
Unknown Number of Registrations 1,029 1,074 1,056 1,178 1,312 1,319 1,376 1,427 1,436 1,498
10th Percentile of TT (Days) 59 82 79 72 72 83 91 92 119 108
25th Percentile of TT (Days) 177 213 227 224 225 238 280 290 327 362
Median TT (Days) 556 646 741 794 891 771 981 1,105 + +
Median TT 95% C.I. Lower Bound 502 587 637 685 805 685 850 944 + +
Median TT 95% C.I. Upper Bound 672 755 881 902 996 917 1,167 + + +

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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