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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

Residency 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 + +
U.S. Resident Number of Registrations 13,743 15,134 16,326 17,706 18,067 18,784 19,872 20,664 21,944 21,977
10th Percentile of TT (Days) 60 82 85 84 85 92 100 107 114 116
25th Percentile of TT (Days) 186 234 247 247 260 268 296 310 337 359
Median TT (Days) 569 709 775 825 882 931 1,063 1,134 + +
Median TT 95% C.I. Lower Bound 552 685 752 797 854 892 1,023 1,093 + +
Median TT 95% C.I. Upper Bound 589 736 809 849 916 965 1,098 1,197 + +
Nonresident Alien Number of Registrations 89 103 99 152 185 185 186 171 205 168
10th Percentile of TT (Days) 77 71 148 69 73 68 71 148 151 117
25th Percentile of TT (Days) 253 324 387 232 224 275 383 610 584 398
Median TT (Days) 708 894 969 695 1,084 1,009 1,292 + + +
Median TT 95% C.I. Lower Bound 457 604 678 536 756 730 1,057 + + +
Median TT 95% C.I. Upper Bound 1,201 1,422 1,351 901 1,527 1,637 + + + +
Unknown Number of Registrations 1,392 853 113 45 76 98 133 151 120 204
10th Percentile of TT (Days) 170 88 24 124 35 50 58 152 191 64
25th Percentile of TT (Days) 521 255 1,285 1,193 215 330 346 583 428 301
Median TT (Days) + + + + 1,146 1,072 + + + +
Median TT 95% C.I. Lower Bound + + + + 739 647 + + + +
Median TT 95% C.I. Upper Bound + + + + + + + + + +

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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