Demographics and operative data of patient population.
| Characteristic | Entire Cohort | Men | Women |
| Number of operated patients | 789 | 383 (48.5%) | 406 (51.5%) |
| Age at surgery, y, mean | 57.6 | 57.7 | 57.4 |
| Body mass index, mean | 29.9 | 30.3 | 29.6 |
| Current active smokers, % | 19.8 | 21.7 | 18.0 |
| Unemployed patients, % | 55.2 | 51.2 | 59.2 |
| Monosegmental patients, % | 34.2 | 34.2 | 34.2 |
| Bisegmental patients, % | 41.7 | 40.5 | 42.9 |
| ≥3 segmental patients, % | 24.1 | 25.3 | 22.9 |