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Transplant Statistics: Annual Report : Reference Tables

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Table 10.2
Time to Transplant
New Intestine Waiting List Registrations, 1993 to 2001

Blood Type Year of Waiting List Registration
1993 1994 1995 1996 1997 1998 1999 2000 2001
Total Number of Registrations 59 84 92 88 135 152 149 171 219
10th Percentile of TT (Days) 24 41 19 35 21 12 28 33 27
25th Percentile of TT (Days) 184 163 114 96 72 80 87 103 82
Median TT (Days) + + 467 390 894 291 313 295 319
Median TT 95% C.I. Lower Bound + + 276 254 265 165 219 192 185
Median TT 95% C.I. Upper Bound + + + 1,164 + + 520 604 +
O Number of Registrations 22 30 34 38 64 76 83 86 96
10th Percentile of TT (Days) 39 87 14 50 32 13 27 41 28
25th Percentile of TT (Days) 184 387 116 232 99 80 75 122 81
Median TT (Days) + + 467 751 377 414 224 343 333
Median TT 95% C.I. Lower Bound + + 267 415 221 162 130 221 179
Median TT 95% C.I. Upper Bound + + + + + + 319 + +
A Number of Registrations 23 33 40 34 47 59 44 52 82
10th Percentile of TT (Days) 24 27 31 21 20 4 50 19 26
25th Percentile of TT (Days) 38 150 132 44 52 55 186 51 87
Median TT (Days) 653 551 417 163 793 165 + 174 194
Median TT 95% C.I. Lower Bound 95 163 228 89 125 121 + 117 142
Median TT 95% C.I. Upper Bound + + + 339 + 1,174 + + +
B Number of Registrations 10 16 16 9 14 13 17 25 37
10th Percentile of TT (Days) 243 6 1 43 8 16 35 24 20
25th Percentile of TT (Days) 1,033 160 114 409 + 122 192 92 82
Median TT (Days) + + 637 + + + 867 + +
Median TT 95% C.I. Lower Bound + + 142 + + + 217 + +
Median TT 95% C.I. Upper Bound + + + + + + + + +
AB Number of Registrations 4 5 2 7 10 4 5 8 4
10th Percentile of TT (Days) 3 43 79 78 6 54 43 45 68
25th Percentile of TT (Days) 3 45 79 162 69 54 61 116 68
Median TT (Days) + 63 79 + 113 + 67 173 337
Median TT 95% C.I. Lower Bound + 45 79 + 69 + 61 169 68
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.
The Intestine waiting list began in 1993.
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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