Table 1.
Characteristics of the Study Populationa
| Characteristic | Study Population (n = 2799) | Prospective Validation Population (n = 255) |
|---|---|---|
| Age, median (range), y | 56 (18–97) | 54 (19–91) |
| ≥65 y | 812 (29.0) | 72 (28.2) |
| Sex | ||
| Male | 1208 (43.2) | 133 (52.2) |
| Female | 1591 (56.8) | 122 (47.8) |
| Surgical specialty | ||
| Advanced MIS | 343 (12.2) | 30 (11.8) |
| Colorectal | 1056 (37.7) | 76 (29.8) |
| General | 855 (30.5) | 124 (48.6) |
| HPB and soft-tissue oncology | 545 (19.5) | 25 (9.8) |
| Complication in hospital | 503 (18.0) | 23 (9.0) |
Abbreviations: HPB, hepatopancreaticobiliary; MIS, minimally invasive surgery.
a
Values are presented as number (percentage) of patients unless otherwise indicated.