| Outcome | Under 80 (n=1360) | 80 or over (n=121) | p Value |
| Respiratory complication | 292 (22%) | 39 (32%) | 0.01 |
| Cardiac complication | 165 (13%) | 26 (22%) | 0.004 |
| Wound complication | 20 (2%) | 4 (3%) | 0.13 |
| ITU readmission | 90 (7%) | 16 (13%) | 0.01 |
| Return to theatre | 103 (8%) | 12 (10%) | 0.36 |
| Post-op length of stay | 8 (6–10) | 10 (7–13) | <0.0001 |
| In-hospital mortality | 27 (2%) | 7 (6%) | 0.02 |