Table 1 Descriptive patient data
Variable |  | n (patients) | Mean ± SD | P value |
|---|---|---|---|---|
Cross clamp time (min) |  > 80YO | 251 | 110 ± 43 | P = 0.04 |
 < 80YO | 1006 | 118 ± 58 | ||
CPBT (min) |  > 80YO | 306 | 167 ± 51 | P = 0.02 |
 < 80YO | 1270 | 177 ± 68 | ||
Aortic root replacement |  > 80YO | 52/1597 (3.3%) | – | P < 0.01 |
 < 80YO | 734/9948 (7.4%) | – | ||
Total arch replacement |  > 80YO | 381/1597 (24%) | – | P = 0.01 |
 < 80YO | 3256/9948 (33%) | – | ||
DHCA |  > 80YO | 202 | 30.5 ± 12.9 | P = 0.37 |
 < 80YO | 781 | 31.2 ± 15.5 | ||
ACP |  > 80YO | 79/186 (42%) | – | P = 0.04 |
|  | 428/727 (59%) | – | ||
Malperfusion |  | 614/2526 (24%) | – |  |
Tamponade |  | 767/2974 (26%) | – |  |
Hypertension |  | 9784/14641 (67%) | – |  |
Male |  | 9622/16641 (58%) | – |  |