Table 2.
Summary of studies reporting one‐year graft survival
| Study ID | Number of participants | One year graft survival results | Information |
| Chen 2014c | 72 | SCS: 91.7% HMP: 97.2% (P = 0.307) |
No information on how percentages were calculated. Therefore, likely not time‐to‐event analysis, and unknown whether graft survival was censored for death. Insufficient information to assess how many patients were followed‐up for a full year |
| Halloran 1985 | 181 | SCS 69.5% HMP 74.9% (“not significant”) |
Survival % is from cox regression time‐to‐event analysis. No P value or further information was provided which may allow inclusion in a meta‐analysis. Death counted as graft failure. Most patients were not followed up for a full year but no further information was given on this |
| Moers 2009 | 672 in graft survival analysis | SCS 90% HMP 94% (P = 0.04) Cox HR 0.52 (P = 0.03) |
Used log‐rank and cox proportional hazards model. Graft survival censored for death (in those dying with a functioning graft). Graft survival rates are a result of this time‐to‐event death censored analysis |
| PPART 2010 | 90 | SCS 44/45 (97.8%) MP 42/45 (93.3%) (P = 0.3) |
They give actual numbers for numbers of grafts which failed by 1 year. Death was not counted as graft failure. Time‐to‐event analysis not performed |
| Tedesco‐Silva 2017 | 160 | SCS 72/78 (92.3%) HMP 72/80 (90%) (P = 1.000) |
They give actual numbers for numbers of grafts which failed by 1 year. Death was not counted as graft failure. Time‐to‐event analysis not performed |
| van der Vliet 2001 | 76 | SCS 84.2% HMP 76.3% |
No information on how percentages were calculated. Therefore, likely not time‐to‐event analysis, and unknown whether graft survival was censored for death. Insufficient information to assess how many patients were followed‐up for a full year. No P value was reported |
| Veller 1994 | 36 | SCS 82% HMP 83% |
No information on how percentages were calculated. Therefore, likely not time‐to‐event analysis, and unknown whether graft survival was censored for death. Insufficient information to assess how many patients were followed‐up for a full year. No P value was reported |
| Zhong 2017 | 282 | SCS 93% HMP 98% (P = 0.026) |
Graft survival was analysed using a log‐rank test. Graft survival was censored for death (in those dying with a functioning graft). Graft survival estimates are based on time‐to‐event analysis and raw data for number of graft losses was not given. Hazard ratios were not reported |
HMP ‐ hypothermic machine perfusion; SCS ‐ static cold storage