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Transplant Statistics: Annual Report : Reference Tables

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Table 12.2
Time to Transplant
New Lung 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 1,199 1,358 1,570 1,753 1,829 1,949 2,085 2,136 1,976 2,035
10th Percentile of TT (Days) 76 66 54 63 81 77 113 141 109 86
25th Percentile of TT (Days) 237 263 214 188 252 282 355 476 358 290
Median TT (Days) 513 637 734 739 763 976 1,064 + + +
Median TT 95% C.I. Lower Bound 482 580 657 666 698 865 952 + + +
Median TT 95% C.I. Upper Bound 566 714 870 820 900 1,167 1,290 + + +
U.S. Resident Number of Registrations 774 1,094 1,515 1,724 1,784 1,911 2,058 1,974 1,955 2,008
10th Percentile of TT (Days) 55 57 52 63 81 78 113 141 109 86
25th Percentile of TT (Days) 155 207 206 187 250 285 356 455 356 288
Median TT (Days) 366 486 699 727 749 983 1,068 + + +
Median TT 95% C.I. Lower Bound 335 445 618 662 691 865 958 + + +
Median TT 95% C.I. Upper Bound 396 527 805 811 877 1,170 1,291 + + +
Nonresident Alien Number of Registrations 1 3 8 15 19 19 15 19 11 12
10th Percentile of TT (Days) 189 + 43 3 8 41 41 2 2 +
25th Percentile of TT (Days) 189 + 237 85 318 56 200 49 670 +
Median TT (Days) 189 + + 359 + 401 555 + + +
Median TT 95% C.I. Lower Bound + + + 169 + 123 203 + + +
Median TT 95% C.I. Upper Bound + + + + + + + + + +
Unknown Number of Registrations 424 261 47 14 26 19 12 143 10 15
10th Percentile of TT (Days) 434 + 486 601 243 68 336 275 + 77
25th Percentile of TT (Days) + + + 1,270 574 235 371 + + 114
Median TT (Days) + + + + + + + + + +
Median TT 95% C.I. Lower Bound + + + + + + + + + +
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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