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Table 10
Graft Survival by Age at Transplant and by Time since Transplant
For Patients Transplanted between 07/01/1996 and 06/30/2000
Center: University of Alabama Hospital, Birmingham, AL
Organ: LI: Liver  (Single-Organ Transplants Only)
Note: Deaths and retransplants are counted as graft failures
                 
Graft Survival by Time since Transplant
This Center United States
1 Month 1 Year 3 Years 1 Month 1 Year 3 Years
Adult (Age 18+)
Transplants (n) 1 174 174 170 8,121 8,121 7,057
Graft Survival (%) 2 98.25 89.67 85.95 90.41 80.21 72.34
Expected Graft Survival (%) 3 92.59 83.21 75.82 NA NA NA
P-value (2-sided) 4 <0.01 0.016 <0.01 NA NA NA
Statistically different from expected Higher Higher Higher NA NA NA
Follow-up days reported (%) 5 98.2 92.1 92.4 92.9 86.9 89.0
Maximum Days of Follow-up (n) 30 365 1,096 30 365 1,096
Follow-up forms filed (%) 6 100.0 97.7 96.5 99.8 99.3 97.5
Pediatric (Age < 18)
Transplants (n) 1 16 16 26 1,008 1,008 1,038
Graft Survival (%) 2 80.36 73.05 72.65 85.82 76.87 68.66
Expected Graft Survival (%) 3 90.59 81.56 71.43 NA NA NA
P-value (2-sided) 4 0.225 0.488 0.956 NA NA NA
Statistically different from expected Not Different Not Different Not Different NA NA NA
Follow-up days reported (%) 5 92.7 84.3 97.6 91.4 82.7 84.1
Maximum Days of Follow-up (n) 30 365 1,096 30 365 1,096
Follow-up forms filed (%) 6 100.0 93.8 100.0 99.7 99.5 97.9
                 
Transplant Time Period 7/1/98-6/30/00 7/1/98-6/30/00 7/1/96-6/30/98   7/1/98-6/30/00 7/1/98-6/30/00 7/1/96-6/30/98
1 Transplants during the time period indicated in the last row of the table.
2 Because different cohorts are followed for each time period, it is possible for reported 3-year survival to exceed 1-year survival.
3 Based on U.S. graft failure rates adjusted for recipient and donor characteristics as indicated in the Analytical Methods.
4 A p-value less than or equal to 0.05 indicates that the difference between the actual and expected graft survival is probably real and is not due to random chance, while a p-value greater than 0.05 indicates that the difference could possibly be due to random chance.
5 Of days expected to be included in the follow-up period, the percentage of days covered by follow-up reporting for these tranplants.  A low percent may indicate a non-representative sample from this facility for followup.  This measures the possibility that events such as failure have occurred without being reported, and it is not a measure of compliance.
6 Percent of 3 month follow-up forms filed is used for 1 month survival; percent of 1 year follow-up forms filed is used for 1 year survival; and percent of 3 year follow-up forms filed is used for 3 year survival.
Based on data available as of 11/01/2001.
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