Table 7.
Average of simulation results from strategies S1 to S5
| KPD only |
KPD + DD |
KPD + DD minus KPD only |
||||||||
|---|---|---|---|---|---|---|---|---|---|---|
| 1 |
2 |
3 |
4 |
5 |
6 |
7 |
8 |
9 |
10 |
11 |
| Parameter | Value | KPD cand tx | Living donor to WL | KPD cand tx | Living donor to WL | DD-CIK | Blood type O DD-CIK | Blood type O living donor to WL | Extra total txa | Extra blood type O txa |
| Withdrawal probability (per day) | 0.0005 | 681 (12.32) | 64 (2.06) | 1265 (13.69) | 731 (7.70) | 679 (8.90) | 586 (8.83) | 128 (1.81) | 572 (8.01) | 60 (3.24) |
| 0.0015 | 637 (12.88) | 63 (2.13) | 1192 (12.81) | 688 (7.90) | 635 (9.08) | 548 (8.83) | 119 (1.64) | 545 (8.77) | 61 (3.42) | |
| Nondirected donor arrivals (# per year) | 0 | 606 (12.80) | 21 (1.88) | 1222 (13.29) | 700 (7.14) | 693 (7.96) | 593 (7.82) | 128 (2.23) | 602 (6.75) | 63 (3.55) |
| 24 | 663 (13.19) | 55 (3.15) | 1228 (12.58) | 703 (8.08) | 658 (9.64) | 570 (9.46) | 124 (1.71) | 556 (10.01) | 60 (3.29) | |
| 60 | 709 (12.22) | 114 (2.58) | 1236 (14.07) | 725 (8.50) | 619 (10.05) | 539 (9.45) | 120 (1.33) | 518 (9.25) | 60 (3.38) | |
| Match run frequency (day) | 5 | 661 (12.28) | 63 (2.05) | 1229 (13.23) | 703 (7.82) | 651 (9.04) | 563 (8.78) | 120 (1.65) | 557 (8.02) | 60 (3.17) |
| 10 | 657 (12.92) | 64 (2.14) | 1228 (13.23) | 715 (7.73) | 662 (8.89) | 571 (8.81) | 127 (1.79) | 560 (8.69) | 62 (3.31) | |
| Delay time (day) | 0 | 659 (12.59) | 63 (2.10) | 1316 (14.69) | 998 (8.20) | 948 (9.08) | 738 (10.23) | 226 (3.55) | 644 (10.09) | 74 (3.71) |
| 30 | 659 (12.60) | 63 (2.09) | 1271 (14.56) | 739 (9.83) | 687 (11.06) | 605 (11.18) | 128 (1.68) | 600 (9.71) | 68 (3.33) | |
| 60 | 659 (12.58) | 63 (2.10) | 1236 (13.43) | 672 (9.27) | 619 (10.36) | 556 (9.34) | 106 (2.28) | 566 (8.74) | 61 (3.31) | |
| 90 | 659 (12.59) | 63 (2.09) | 1203 (12.94) | 624 (8.65) | 570 (9.72) | 517 (8.57) | 92 (2.44) | 534 (8.15) | 57 (3.26) | |
| 180 | 659 (12.59) | 63 (2.09) | 1115 (11.04) | 514 (5.96) | 459 (7.31) | 421 (6.98) | 67 (1.58) | 448 (5.67) | 45 (2.76) | |
#, number; DD, deceased donor; DD-CIK, deceased donor chain-initiating kidney; cand, candidate; KPD, kidney paired donation; Tx, transplant; WL, waitlist.
For each fixed parameter value as indicated in the first two columns, the next 7 columns report average results for “KPD only” and “KPD + DD” (except strategy S6). The final two columns report the average numbers of extra transplants and extra blood type O transplants achieved in “KPD + DD” compared with “KPD only.”
The extra total number of transplants in column 9 is obtained as the fifth column plus the sixth column minus the third column minus the fourth column minus the seventh column. This follows because the total number of transplants in the KPD-only method is the third column plus the fourth column plus the actual number of deceased donor transplants in 2016 to 2017. In the “KPD + DD” method, the total number of transplants is the fifth column plus the sixth column plus the actual number of deceased donor transplants in 2016 to 2017 minus the seventh column. Extra blood type O transplants are obtained in a similar way, although not all data required for this calculation are included in this table.