Table 1. Characteristics of Included Patients.
| Characteristic | Patients, No. (%) |
|---|---|
| Total No. | 82 037 |
| Age category, y | |
| 70-74 | 31 110 (37.9) |
| 75-79 | 23 439 (28.6) |
| 80-84 | 16 708 (20.4) |
| ≥85 | 10 780 (13.1) |
| Sex | |
| Female | 52 119 (63.5) |
| Male | 29 918 (36.4) |
| Residence | |
| Rural | 8380 (10.2) |
| Urban | 73 025 (89.0) |
| Missing | 632 (0.8) |
| Comorbidity burden | |
| High (ADG ≥10) | 26 563 (32.4) |
| Low (ADG <10) | 55 474 (67.6) |
| Material deprivation quintile | |
| First (highest) | 14 954 (18.2) |
| Second | 16 719 (20.4) |
| Third | 16 162 (19.7) |
| Fourth | 16 708 (20.4) |
| Fifth (lowest) | 17 216 (21.0) |
| Missing | 278 (0.3) |
| Preoperative frailty | |
| Yes | 6443 (7.9) |
| No | 75 594 (92.1) |
| Cancer type | |
| Breast | 22 811 (27.8) |
| Bronchopulmonary | 7429 (9.0) |
| Gastrointestinal | 32 036 (39.1) |
| Genitourinary | 8483 (10.3) |
| Gynecologic | 6658 (8.1) |
| Oropharyngeal | 867 (1.1) |
| Melanoma | 3753 (4.6) |
| Intensity of surgical procedure | |
| High | 48 812 (59.5) |
| Low | 33 225 (40.5) |
| Time of diagnosis | |
| 2007-2011 | 36 344 (44.3) |
| 2012-2017 | 45 693 (55.7) |
| Perioperative therapy | |
| Yes | 55 491 (67.6) |
| No | 26 546 (32.4) |
Abbreviation: ADG, aggregated diagnosis groups.